cover page deficiencies summary - custom eng · cover page deficiencies summary ... ucs-66...

Southern Technologies

Index

Cover Page

Deficiencies SummaryNozzle ScheduleNozzle SummaryPressure SummaryRevision HistorySettings SummaryThickness SummaryWeight SummaryHydrostatic TestVacuum Summary

Cylinder #1

Ellipsoidal Head #2Straight Flange on Ellipsoidal Head #2Straight Flange on Ellipsoidal Head #1Ellipsoidal Head #1

Nozzle #1 (N1)Nozzle #2 (N2)Nozzle #3 (N3)Nozzle #4 (N4)Nozzle #5 (N5)Nozzle #6 (N6)Nozzle #7 (N7)Nozzle #8 (N8)Nozzle #9 (N9)

Legs #1

Seismic Code

Liquid Level bounded by Ellipsoidal Head #1

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Cover Page

Cover Page

Custom Engineering2800 McClelland Ave

Erie, PA 16510

COMPRESS Pressure Vessel Design Calculations

Item: Potable Water Storage Tank

Vessel No: G-6764

Customer: Customer #2

Contract: WO# 7328

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Cover Page

Designer: George Clark

Date: 3/31/04

You can edit this page by selecting Cover Page settings... in the report menu.

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Deficiencies Summary

Deficiencies Summary

Deficiencies for Nozzle #4 (N4)Nozzle MAWP (121.2158 psi) is less than the design pressure (125.0000 psi).

Warnings Summary

Warnings for Legs #1The Skirt/Legs/Saddles Stress Increase factor is 1.30 (Set Mode Options dialog on the Calculation tab). AISC ASD supplement No. 1 (Dec. 17, 2001) paragraph A5 removed the stress increase factor of 1/3. For the specified building code the recommended stress increase factor is 1.00. (warning)

ASME B16.5 / B16.47 Flange Warnings Summary

ASME B16.5 / 16.47 Flanges with Warnings

Flange Applicable Warnings

Nozzle #3 (N3) 1

Nozzle #1 (N1) 1

Nozzle #4 (N4) 1

ASME B16.5 / 16.47 Flange Warnings

No. Warning

1 For Class 150 flanges, ASME B16.5 para. 5.4.2 recommends gaskets to be in accordance with Fig. E1, Group No. I.

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Nozzle Schedule

Nozzle Schedule

Nozzlemark Service Size

Materials

Nozzle Impact Norm Fine Grain Pad Impact Norm

Fine Grain Flange

N1 Nozzle #1

2.500" Sch 40 (Std)

SA-106 B Smls pipe

No No No N/A N/A N/A N/AWN A105 150#

N2 Nozzle #2

18" Sch 60

SA-106 C Smls pipe

No No No N/A N/A N/A N/A N/A

N3 Nozzle #3

4" Sch 80 (XS)

SA-106 B Smls pipe


N4 Nozzle #4

4" Sch 80 (XS)

SA-106 B Smls pipe


N5 Nozzle #5

1" 3000# - threaded

SA-105 No No No N/A N/A N/A N/A N/A

N6 Nozzle #6

1" 3000# - threaded


N7 Nozzle #7

1.500" 3000# - threaded


N8 Nozzle #8

1.500" 3000# - threaded


N9 Nozzle #9

1" 3000# - threaded


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Nozzle Summary

Nozzle Summary

Nozzlemark

OD(in)

tn

(in) Req tn

(in) A1? A2?

Shell ReinforcementPad Corr

(in) Aa/Ar(%)Nom t

(in) Design t(in)

User t(in)

Width(in)

tpad(in)

N1 2.88 0.2030 0.2030 Yes Yes 0.5000* 0.3862 N/A N/A 0.0000 100.0

N2 18.00 0.7500 0.0714 Yes Yes 0.5000 0.4391 N/A N/A 0.0000 100.0

N3 4.50 0.3370 0.2370 Yes Yes 0.5000* 0.3982 N/A N/A 0.0000 100.0

N4 4.50 0.3370 0.2370 Yes Yes 0.5000* 0.3982 N/A N/A 0.0000 100.0

N5 1.75 0.2175 0.1042 Yes Yes 0.5000 N/A N/A N/A 0.0000 Exempt


N7 2.50 0.3000 0.1041 Yes Yes 0.5000* N/A N/A N/A 0.0000 Exempt

N8 2.50 0.3000 0.1041 Yes Yes 0.5000* N/A N/A N/A 0.0000 Exempt


tn: Nozzle thickness

Req tn: Nozzle thickness required per UG-45/UG-16

Nom t: Vessel wall thickness

Design t: Required vessel wall thickness due to pressure + corrosion allowance per UG-37

User t: Local vessel wall thickness (near opening)

Aa: Area available per UG-37, governing condition

Ar: Area required per UG-37, governing condition

Corr: Corrosion allowance on nozzle wall

* Head minimum thickness after forming

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Pressure Summary

Pressure Summary

Pressure Summary for Chamber bounded by Ellipsoidal Head #1 and Ellipsoidal Head #2

Identifier P

Design( psi)

TDesign

(°F)

MAWP( psi)

MAP( psi)

MAEP( psi)

Teexternal

(°F)

MDMT Rating Total CorrosionAllowance

(in)

ImpactTestMDMT

(°F) Exemption

Ellipsoidal Head #2

125.0 300.0 147.00 147.21 61.66 300.0 -40.9 Note 1 0.000 No

Straight Flange on Ellipsoidal Head #2

125.0 300.0 146.15 146.44 43.45 300.0 -40.6 Note 2 0.000 No

Cylinder #1 125.0 300.0 142.83 146.44 43.45 300.0 -38.8 Note 3 0.000 No


125.0 300.0 142.76 146.44 43.45 300.0 -38.7 Note 5 0.000 No

Ellipsoidal Head #1

125.0 300.0 142.67 147.21 61.66 300.0 -38.6 Note 4 0.000 No

Legs #1 125.0 300.0 125.00 N/A N/A N/A N/A N/A N/A N/A

Nozzle #1 (N1)

125.0 300.0 169.45 174.20 36.74 300.0 -55.0 Note 6 0.000 No

Nozzle #2 (N2)

125.0 300.0 133.89 137.05 31.34 300.0 -47.6 Note 7 0.000 No

Nozzle #3 (N3)

125.0 300.0 125.38 125.38 39.06 300.0 -55.0 Note 6 0.000 No

Nozzle #4 (N4)

125.0 300.0 121.22 125.38 39.07 300.0 -55.0 Note 6 0.000 No

Nozzle #5 (N5)

125.0 300.0 208.70 209.16 43.45 300.0 -155.0 Note 8 0.000 No

Nozzle #6 (N6)

125.0 300.0 205.69 209.16 43.45 300.0 -155.0 Note 9 0.000 No

Nozzle #7 (N7)

125.0 300.0 232.51 232.51 43.45 300.0 -155.0 Note 10 0.000 No

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Pressure Summary

Nozzle #8 (N8)

125.0 300.0 232.51 232.51 43.45 300.0 -155.0 Note 10 0.000 No

Nozzle #9 (N9)

125.0 300.0 208.48 209.16 43.45 300.0 -155.0 Note 11 0.000 No

Chamber design MDMT is -20.00°FChamber rated MDMT is -38.60°F @ 121.22 psi

Chamber MAWP hot & corroded is 121.22 psi @ 300.0°F

Chamber MAP cold & new is 125.38 psi @ 70.0°F

Chamber MAEP is 31.34 psi @ 300.0°FVacuum rings did not govern the external pressure rating.

Notes for MDMT Rating:

Note # Exemption Details

1.

Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 33.9 °F, (coincident ratio = 0.6609836)

UCS-66 governing thickness = 0.5 in

2.



3.



4.



5.



6. Flange rating governs: UCS-66(b)(1)(b)






Pressure Summary

7.Nozzle impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 40.6 °F, (coincident ratio = 0.5953)

UCS-66 governing thickness = 0.5 in.

8.Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.01846).




Design notes are available on the Settings Summary page.


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Revision History

No. Date Operator Notes

0 3/ 5/2004 george New vessel created ASME Division 1 [Build 6225]

1 3/11/2004 george

Converted from ASME Section VIII Division 1, 2001 Edition, A03 Addenda to ASME Section VIII Division 1, 2001 Edition, A03 Addenda. During the conversion, changes may have been made to your vessel (some may be listed above). Please check your vessel carefully.

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Settings Summary

Settings Summary

COMPRESS Build 6242

Units: English

Datum Line Location: 0.00" from bottom seam

Design

ASME Section VIII Division 1, 2001 Edition, A03 Addenda

Design or Rating: Get Thickness from Pressure

Minimum thickness: 1/16" per UG-16(b)

Design for cold shut down only: No

Design for lethal service (full radiography required): No

Design nozzles for: Design P, find nozzle MAWP and MAP

Corrosion weight loss: 100% of theoretical loss

UG-23 Stress Increase: 1.20

Skirt/legs stress increase: 1.3

Minimum nozzle projection: 3.0000"

Juncture calculations for α > 30 only: Yes

Preheat P-No 1 Materials > 1.25" and <= 1.50" thick: No

Butt welds are tapered per Figure UCS-66.3(a).

Hydro/Pneumatic Test

Shop Hydrotest Pressure: 1.3 times vessel MAWP

Test liquid specific gravity: 1.00

Maximum stress during test: 90% of yield

Code Interpretations

Apply interpretation VIII-1-83-66: Yes



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Settings Summary


Disallow UG-20(f) exemptions: No

UG-22 Loadings

UG-22 (a) Internal or External Design Pressure : Yes

UG-22 (b) Weight of the vessel and normal contents under operating or test conditions: Yes

UG-22 (c) Superimposed static reactions from weight of attached equipment (external loads): No

UG-22 (d)(2) Vessel supports such as lugs, rings, skirts, saddles and legs: Yes

UG-22 (f) Wind reactions: No

UG-22 (f) Seismic reactions: Yes

Note: UG-22 (b),(c) and (f) loads only considered when supports are present.

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Thickness Summary

Thickness Summary

ComponentIdentifier Material

Diameter(in)

Length(in)

Nominal t(in)

Design t(in)

JointE Load

Ellipsoidal Head #2 SA-516 70 96.00 OD 24.25 0.5000* 0.4259 0.7000 Internal

Straight Flange on Ellipsoidal Head #2 SA-516 70 96.00 OD 2.00 0.5000 0.4281 0.7000 Internal

Cylinder #1 SA-516 70 96.00 OD 92.00 0.5000 0.4394 0.7000 Internal

Straight Flange on Ellipsoidal Head #1 SA-516 70 96.00 OD 2.00 0.5000 0.4396 0.7000 Internal

Ellipsoidal Head #1 SA-516 70 96.00 OD 24.25 0.5000* 0.4405 0.7000 Internal

Nominal t: Vessel wall nominal thickness

Design t: Required vessel thickness due to governing loading + corrosion

Joint E: Longitudinal seam joint efficiency

* Head minimum thickness after forming

Load

internal: Circumferential stress due to internal pressure governs

external: External pressure governs

Wind: Combined longitudinal stress of pressure + weight + wind governs

Seismic: Combined longitudinal stress of pressure + weight + seismic governs

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Weight Summary

Weight Summary

Component

Weight ( lb) Contributed by Vessel Elements

MetalNew*

MetalCorroded*

Insulation &Supports

Lining Piping

+ Liquid Operating

Liquid Test

Liquid

Ellipsoidal Head #2 1,571.75 1,571.75 0.00 0.00 0.00 2,014.25 4,566.73

Cylinder #1 3,868.66 3,868.66 0.00 0.00 0.00 23,564.21 23,564.21

Ellipsoidal Head #1 1,572.22 1,572.22 0.00 0.00 0.00 4,566.44 4,566.44

Legs #1 355.38 355.38 0.00 0.00 0.00 0.00 0.00

TOTAL: 7,368.00 7,368.00 0.00 0.00 0.00 30,144.90 32,697.37

* Shells with attached nozzles have weight reduced by material cut out for opening.

Component

Weight ( lb) Contributed by Attachments

Body Flanges Nozzles &

Flanges PackedBeds

Ladders &Platforms

Trays &Supports

Rings &

Clips

VerticalLoads

New Corroded New Corroded

Ellipsoidal Head #2

0.00 0.00 33.49 33.49 0.00 0.00 0.00 0.00 0.00

Cylinder #1 0.00 0.00 59.81 59.81 0.00 0.00 0.00 0.00 0.00

Ellipsoidal Head #1

0.00 0.00 37.48 37.48 0.00 0.00 0.00 0.00 0.00

Legs #1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

TOTAL: 0.00 0.00 130.78 130.78 0.00 0.00 0.00 0.00 0.00

Vessel operating weight, Corroded: 37,644 lbVessel operating weight, New: 37,644 lbVessel empty weight, Corroded: 7,499 lbVessel empty weight, New: 7,499 lbVessel test weight, New: 40,196 lb

Vessel center of gravity location (from datum)

Vessel Lift Weight, New: 7,499 lb

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Weight Summary

Center of Gravity: 42.94"

Vessel Capacity

Vessel Capacity** (New): 3,917 US galVessel Capacity** (Corroded): 3,917 US gal**The vessel capacity does not include volume of nozzle, piping or other attachments.

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Hydrostatic Test

Hydrostatic Test

Shop test pressure determination for Chamber bounded by Ellipsoidal Head #1 and Ellipsoidal Head #2 based on MAWP per UG-99(b)

Shop hydrostatic test gauge pressure is 157.581 psi at 70.00 °F (the chamber MAWP = 121.216 psi)

The shop test is performed with the vessel in the horizontal position.

IdentifierLocal testpressure

psi

Test liquidstatic head

psi

UG-99stressratio

UG-99pressure

factor

Stressduring test

psi

Allowabletest stress

psi

Stressexcessive?

Ellipsoidal Head #2 (1)

161.208 3.628 1.0000 1.30 13,783 34,200 No


161.208 3.628 1.0000 1.30 15,395 34,200 No

Cylinder #1 161.208 3.628 1.0000 1.30 15,395 34,200 No


161.208 3.628 1.0000 1.30 15,395 34,200 No

Ellipsoidal Head #1 161.208 3.628 1.0000 1.30 13,783 34,200 No

Nozzle #1 (N1) 159.538 1.958 1.0000 1.30 17,465 47,250 No

Nozzle #2 (N2) 161.339 3.759 1.0000 1.30 31,323 51,300 No

Nozzle #3 (N3) 157.943 0.362 1.0000 1.30 20,922 47,250 No

Nozzle #4 (N4) 157.943 0.362 1.0000 1.30 20,920 47,250 No

Nozzle #5 (N5) 159.517 1.937 1.0000 1.30 17,994 48,600 No

Nozzle #6 (N6) 159.517 1.937 1.0000 1.30 17,994 48,600 No

Nozzle #7 (N7) 159.528 1.947 1.0000 1.30 15,287 48,600 No

Nozzle #8 (N8) 160.394 2.814 1.0000 1.30 15,502 48,600 No

Nozzle #9 (N9) 161.371 3.790 1.0000 1.30 18,203 48,600 No

Notes:(1) Ellipsoidal Head #2 limits the UG-99 stress ratio.(2) PL stresses at nozzle openings have been estimated using the method described in PVP-Vol. 399,

pages 77-82.(3) VIII-2, AD-151.1(b) used as the basis for nozzle allowable test stress.

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Hydrostatic Test

(4) The zero degree angular position is assumed to be up, and the test liquid height is assumed to the top-most flange.

The field test condition has not been investigated for the Chamber bounded by Ellipsoidal Head #1 and Ellipsoidal Head #2.

The test temperature of 70.00 °F is warmer than the minimum recommended temperature of -8.60 °F so the brittle fracture provision of UG-99(h) has been met.

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Vacuum Summary

Vacuum Summary

Component Line of Support Elevationabove Datum(in)

Length Le(in)

Ellipsoidal Head #2 - 118.25 N/A

- 1/3 depth of Ellipsoidal Head #2 101.92 N/A

Straight Flange on Ellipsoidal Head #2 Top - 94.00 111.83

Straight Flange on Ellipsoidal Head #2 Bottom - 92.00 111.83

Cylinder #1 Top - 92.00 111.83

Cylinder #1 Bottom - 0.00 111.83

Straight Flange on Ellipsoidal Head #1 Top - 0.00 111.83

Straight Flange on Ellipsoidal Head #1 Bottom - -2.00 111.83

- 1/3 depth of Ellipsoidal Head #1 -9.92 N/A

Ellipsoidal Head #1 - -26.25 N/A

Note

For main components, the listed value of 'Le' is the largest unsupported length for the component.

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Cylinder #1


Component: CylinderMaterial specification: SA-516 70 (ASME II-D p. 14, ln. 31)Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.8 °F, (coincident ratio = 0.6823238)UCS-66 governing thickness = 0.5 in

Internal design pressure: P = 125 psi @ 300°FExternal design pressure: Pe = 15 psi @ 300°F

Static liquid head:

Ps =3.6097 psi(SG=1.0000, Hs=100.0000" Operating head)

Pth=3.6278 psi(SG=1.0000, Hs=100.5000", Horizontal test head)

Corrosion allowance: Inner C = 0.0000" Outer C = 0.0000"

Design MDMT = -20.00°F No impact test performedRated MDMT = -38.80°F Material is not normalized

Material is not produced to Fine Grain PracticePWHT is not performed

Radiography: Longitudinal joint - None UW-11(c) Type 1Top circumferential joint - None UW-11(c) Type 1Bottom circumferential joint - None UW-11(c) Type 1

Estimated weight: New = 3905.6875 lb corr = 3905.6875 lbCapacity: New = 2823.0135 gal corr = 2823.0135 gal

OD = 96.0000"Length Lc = 92.0000"

t = 0.5000"

Design thickness, (at 300.00°F) Appendix 1-1

t = P*Ro/(S*E + 0.40*P) + Corrosion

= 128.6097*48.0000/(20000.0000*0.70 + 0.40*128.6097) + 0.0000

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= 0.4394"

Maximum allowable working pressure, (at 300.00°F) Appendix 1-1

P = S*E*t/(Ro - 0.40*t) - Ps

= 20000.0000*0.70*0.5000 / (48.0000 - 0.40*0.5000) - 3.6097= 142.8338 psi

Maximum allowable pressure, (at 70.00°F) Appendix 1-1

P = S*E*t/(Ro - 0.40*t)

= 20000.0000*0.70*0.5000 / (48.0000 - 0.40*0.5000)= 146.4435 psi

External Pressure, (Corroded & at 300.00°F) UG-28(c)

L/Do = 111.8333/96.0000 = 1.1649

Do/t = 96.0000/0.329221 = 291.5970

From table G: A = 0.000228

From table CS-2: B = 3280.4565

Pa = 4*B/(3*(Do/t))

= 4*3280.4565/(3*(96.0000/0.329221))

= 15.0000 psi

Design thickness for external pressure Pa = 15.0000 psi

= t + Corrosion = 0.329221 + 0.0000 = 0.3292"

Maximum Allowable External Pressure, (Corroded & at 300.00°F) UG-28(c)

L/Do = 111.8333/96.0000 = 1.1649

Do/t = 96.0000/0.5000 = 192.0000



Pa = 4*B/(3*(Do/t))

= 4*6256.9512/(3*(96.0000/0.5000))



= 43.4510 psi

% Extreme fiber elongation - UCS-79(d)

= (50 * t / Rf) * (1 - Rf / Ro)

= (50 * 0.5000 / 47.7500) * (1 - 47.7500 / ∞)= 0.5236 %

External Pressure + Weight + Seismic Loading Check (Bergman, ASME paper 54-A-104)

Pv = VAccel*W / (2*π*Rm) + M / (π*Rm2)

= 1.2000*5531.92 / (2*π*47.7500) + 134724.69 / (π*47.75002)

= 40.9344 lb/in

α = Pv / (Pe*Do)

= 40.934406 / (15.0000*96.0000)

= 0.0284

n = 6

m = 1.23 / (L/Do)2

= 1.23 / (111.833328/96.0000)2

= 0.9064

Ratio Pe = (n2 - 1 + m + m*α) / (n2 - 1 + m)

= (62 - 1 + 0.906369 + 0.906369*0.028427) / (62 - 1 + 0.906369)

= 1.0007

Ratio Pe * Pe ≤ MAEP design cylinder thickness is satisfactory.

External Pressure + Weight + Seismic Loading Check at Bottom Seam(Bergman, ASME paper 54-A-104)

Pv = VAccel*W / (2*π*Rm) + M / (π*Rm2)

= 1.2000*5531.92 / (2*π*47.7500) + 4669.13 / (π*47.75002)

= 22.7779 lb/in

α = Pv / (Pe*Do)

= 22.777905 / (15.0000*96.0000)

= 0.0158

n = 6



m = 1.23 / (L/Do)2

= 1.23 / (111.833328/96.0000)2

= 0.9064

Ratio Pe = (n2 - 1 + m + m*α) / (n2 - 1 + m)

= (62 - 1 + 0.906369 + 0.906369*0.015818) / (62 - 1 + 0.906369)

= 1.0004

Ratio Pe * Pe ≤ MAEP design cylinder thickness is satisfactory.

Design thickness = 0.4394"

The governing condition is due to internal pressure.

The cylinder thickness of 0.5000" is adequate.

Thickness Required Due to Pressure + External Loads

ConditionPressure P ( psi)

Allowable Stress Before UG-23 Stress Increase

( psi)Temperature

(°F)Corrosion

C (in)Location Load

Req'd Thk

Due to Tension

(in)

Req'd Thk Due to

Compression (in)

St Sc

Operating, Hot & Corroded

125.00 20000.00 13265.59 300.00 0.0000top Seismic 0.1236 0.1219

Bottom Seismic 0.1228 0.1226

Operating, Hot & New

125.00 20000.00 13265.59 300.00 0.0000top Seismic 0.1236 0.1219


Hot Shut Down, Corroded

0.00 20000.00 13265.59 300.00 0.0000top Seismic 0.0000 0.0026


Hot Shut Down, New

0.00 20000.00 13265.59 300.00 0.0000top Seismic 0.0000 0.0026


Empty, Corroded

0.00 20000.00 13265.59 0.00 0.0000top Seismic 0.0009 0.0017


Empty, top Seismic 0.0009 0.0017



New 0.00 20000.00 13265.59 0.00 0.0000Bottom Seismic 0.0011 0.0014

Vacuum -15.00 20000.00 13265.59 300.00 0.0000top Seismic 0.0224 0.0249


Hot Shut Down, Corroded, Weight & Eccentric Moments Only

0.00 20000.00 13265.59 300.00 0.0000

top Weight 0.0014 0.0017

Bottom Weight 0.0014 0.0017

Allowable Compressive Stress, Hot and Corroded- ScHC, (table CS-2)

A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi

ScHC = 13265.5928 psi

Allowable Compressive Stress, Hot and New- ScHN

ScHN = ScHC

= 13265.5928 psi

Allowable Compressive Stress, Cold and New- ScCN, (table CS-2)

A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi



ScCN = 13265.5928 psi

Allowable Compressive Stress, Cold and Corroded- ScCC

ScCC = ScCN

= 13265.5928 psi

Allowable Compressive Stress, Vacuum and Corroded- ScVC, (table CS-2)

A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi

ScVC = 13265.5928 psi

Operating, Hot & Corroded, Seismic, Above Support Point

tp = P*R/(2*St*Ks*Ec + 0.40*|P|) (Pressure)

= 125.0000*47.5000/(2*20000.0000*1.2000*1.00 + 0.40*|125.0000|)

= 0.1236"

tm = M/(π*Rm2*St*Ks*Ec) (bending)

= 134724.69/(π*47.75002*20000.0000*1.2000*1.00)

= 0.0008"

tw = W/(2*π*Rm*St*Ks*Ec) (Weight)

= 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0008"

tt = tp + tm - tw (total required, tensile)

= 0.123569 + 0.000784 - (0.000768)

= 0.1236"

twc = VAccel * W/(2*π*Rm*St*Ks*Ec) (Weight)

= 1.2000 * 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)



= 0.0009"

tc = |tmc + twc - tpc| (total, net tensile)

= |0.000784 + (0.000922) - (0.123569)|

= 0.1219"

Maximum allowable working pressure, Longitudinal Stress

P = 2*St*Ks*Ec*(t-tm+tw) / (R - 0.40*(t-tm+tw))

=2*20000.0000*1.2000*1.00*(0.5000-0.000784+(0.000768)) / (47.5000 - 0.40*(0.5000-0.000784+(0.000768)))

= 507.3839 psi

Operating, Hot & New, Seismic, Above Support Point


= 125.0000*47.5000/(2*20000.0000*1.2000*1.00 + 0.40*|125.0000|)

= 0.1236"


= 134724.69/(π*47.75002*20000.0000*1.2000*1.00)

= 0.0008"


= 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0008"


= 0.123569 + 0.000784 - (0.000768)

= 0.1236"


= 1.2000 * 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0009"


= |0.000784 + (0.000922) - (0.123569)|

= 0.1219"





=2*20000.0000*1.2000*1.00*(0.5000-0.000784+(0.000768)) / (47.5000 - 0.40*(0.5000-0.000784+(0.000768)))

= 507.3839 psi

Hot Shut Down, Corroded, Seismic, Above Support Point

tp = 0.0000" (Pressure)


= 134724.69/(π*47.75002*20000.0000*1.2000*1.00)

= 0.0008"


= 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0008"


= 0.000000 + 0.000784 - (0.000768)

= 0.0000"

tmc = M/(π*Rm2*Sc*Ks) (bending)

= 134724.69/(π*47.75002*13265.5928*1.2000)

= 0.0012"

twc = VAccel * W/(2*π*Rm*Sc*Ks) (Weight)

= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"

tc = tmc + twc - tpc (total required, compressive)

= 0.001182 + (0.001390) - (0.000000)

= 0.0026"

Hot Shut Down, New, Seismic, Above Support Point



= 134724.69/(π*47.75002*20000.0000*1.2000*1.00)



= 0.0008"


= 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0008"


= 0.000000 + 0.000784 - (0.000768)

= 0.0000"

tmc = M/(π*Rm2*Sc*Ks) (bending)

= 134724.69/(π*47.75002*13265.5928*1.2000)

= 0.0012"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"


= 0.001182 + (0.001390) - (0.000000)

= 0.0026"

Empty, Corroded, Seismic, Above Support Point


tm = M/(π*Rm2*Sc*Ks) (bending)

= 32162.91/(π*47.75002*13265.5928*1.2000)

= 0.0003"

tw = W/(2*π*Rm*Sc*Ks) (Weight)

= 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0012"

tt = |tp + tm - tw| (total, net compressive)

= |0.000000 + 0.000282 - (0.001158)|

= 0.0009"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"




= 0.000282 + (0.001390) - (0.000000)

= 0.0017"

Empty, New, Seismic, Above Support Point



= 32162.91/(π*47.75002*13265.5928*1.2000)

= 0.0003"


= 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0012"


= |0.000000 + 0.000282 - (0.001158)|

= 0.0009"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"


= 0.000282 + (0.001390) - (0.000000)

= 0.0017"

Vacuum, Seismic, Above Support Point

tp = P*R/(2*Sc*Ks + 0.40*|P|) (Pressure)

= -15.0000*47.5000/(2*13265.5928*1.2000 + 0.40*|15.0000|)

= -0.0224"


= 134724.69/(π*47.75002*13265.5928*1.2000)

= 0.0012"




= 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0012"


= |-0.022375 + 0.001182 - (0.001158)|

= 0.0224"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"


= 0.001182 + (0.001390) - (-0.022375)

= 0.0249"

Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Seismic, Above Support Point



= 1544.32/(π*47.75002*13265.5928*1.0000)

= 0.0000"


= 5531.92/(2*π*47.7500*13265.5928*1.0000)

= 0.0014"


= |0.000000 + 0.000016 - (0.001390)|

= 0.0014"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.0000)

= 0.0017"


= 0.000016 + (0.001668) - (0.000000)

= 0.0017"

Operating, Hot & Corroded, Seismic, Below Support Point




= 125.0000*47.5000/(2*20000.0000*1.2000*1.00 + 0.40*|125.0000|)

= 0.1236"


= 4669.13/(π*47.75002*20000.0000*1.2000*1.00)

= 0.0000"


= 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0008"


= 0.123569 + 0.000027 - (0.000768)

= 0.1228"


= 1.2000 * 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0009"


= |0.000027 + (0.000922) - (0.123569)|

= 0.1226"



=2*20000.0000*1.2000*1.00*(0.5000-0.000027+(0.000768)) / (47.5000 - 0.40*(0.5000-0.000027+(0.000768)))

= 508.1549 psi

Operating, Hot & New, Seismic, Below Support Point


= 125.0000*47.5000/(2*20000.0000*1.2000*1.00 + 0.40*|125.0000|)

= 0.1236"




= 4669.13/(π*47.75002*20000.0000*1.2000*1.00)

= 0.0000"


= 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0008"


= 0.123569 + 0.000027 - (0.000768)

= 0.1228"


= 1.2000 * 5531.92/(2*π*47.7500*20000.0000*1.2000*1.00)

= 0.0009"


= |0.000027 + (0.000922) - (0.123569)|

= 0.1226"



=2*20000.0000*1.2000*1.00*(0.5000-0.000027+(0.000768)) / (47.5000 - 0.40*(0.5000-0.000027+(0.000768)))

= 508.1549 psi

Hot Shut Down, Corroded, Seismic, Below Support Point



= 4669.13/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0012"


= |0.000000 + 0.000041 - (0.001158)|



= 0.0011"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"


= 0.000041 + (0.001390) - (0.000000)

= 0.0014"

Hot Shut Down, New, Seismic, Below Support Point



= 4669.13/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0012"


= |0.000000 + 0.000041 - (0.001158)|

= 0.0011"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"


= 0.000041 + (0.001390) - (0.000000)

= 0.0014"

Empty, Corroded, Seismic, Below Support Point



= 2490.13/(π*47.75002*13265.5928*1.2000)



= 0.0000"


= 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0012"


= |0.000000 + 0.000022 - (0.001158)|

= 0.0011"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"


= 0.000022 + (0.001390) - (0.000000)

= 0.0014"

Empty, New, Seismic, Below Support Point



= 2490.13/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0012"


= |0.000000 + 0.000022 - (0.001158)|

= 0.0011"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"


= 0.000022 + (0.001390) - (0.000000)

= 0.0014"



Vacuum, Seismic, Below Support Point


= -15.0000*47.5000/(2*13265.5928*1.2000 + 0.40*|15.0000|)

= -0.0224"


= 4669.13/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0012"


= |-0.022375 + 0.000041 - (0.001158)|

= 0.0235"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.2000)

= 0.0014"


= 0.000041 + (0.001390) - (-0.022375)

= 0.0238"

Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Seismic, Below Support Point



= 1459.96/(π*47.75002*13265.5928*1.0000)

= 0.0000"


= 5531.92/(2*π*47.7500*13265.5928*1.0000)

= 0.0014"




= |0.000000 + 0.000015 - (0.001390)|

= 0.0014"


= 1.2000 * 5531.92/(2*π*47.7500*13265.5928*1.0000)

= 0.0017"


= 0.000015 + (0.001668) - (0.000000)

= 0.0017"


Ellipsoidal Head #2

Ellipsoidal Head #2

ASME Section VIII, Division 1, 2001 Edition, A03 Addenda

Component: Ellipsoidal Head Material Specification: SA-516 70 (ASME II-D p.14, ln. 31)Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 33.9 °F, (coincident ratio = 0.6609836)UCS-66 governing thickness = 0.5 in

Internal design pressure: P = 125 psi @ 300 °FExternal design pressure: Pe = 15 psi @ 300 °F

Static liquid head:

Ps= 0.2166 psi (SG=1, Hs=8" Operating head)

Pth= 3.6278 psi (SG=1, Hs=100.5" Horizontal test head)

Corrosion allowance: Inner C = 0" Outer C = 0"

Design MDMT = -20°F No impact test performed Rated MDMT = -40.9°F Material is not normalized

Material is not produced to fine grain practice PWHT is not performed Do not Optimize MDMT / Find MAWP

Radiography: Category A joints - None UW-11(c) Type 1 Head to shell seam - None UW-11(c) Type 1

Estimated weight*: new = 1,571.70 lb corr = 1,571.70 lb Capacity*: new = 547.2 US gal corr = 547.2 US gal* includes straight flange

Outer diameter = 96"Minimum head thickness = 0.5"Head ratio D/2h = 2 (new)Head ratio D/2h = 2 (corroded)Straight flange length Lsf = 2"Nominal straight flange thickness tsf = 0.5"

file:///C|/Codeware/COMPRESS/Temp/CW1ECD4FC9.html (1 of 4) [9/6/2005 2:13:26 PM]

Ellipsoidal Head #2

Insulation thk*: 0" density: 0 lb/ft3 weight: 0 lb Insulation support ring spacing:

0" individual weight: 0 lb total weight: 0 lb

Lining/ref thk*: 0" density: 0 lb/ft3 weight: 0 lb* includes straight flange if applicable

Results Summary

The governing condition is internal pressure.Minimum thickness per UG-16 = 0.0625" + 0" = 0.0625"Design thickness due to internal pressure (t) = 0.4259"Design thickness due to external pressure (te) = 0.247"

Maximum allowable working pressure (MAWP) = 146.9969 psi

Maximum allowable pressure (MAP) = 147.2135 psi

Maximum allowable external pressure (MAEP) = 61.6617 psi

K (Corroded)

K = (1/6)*[2 + (D / (2*h))2]= (1/6)*[2 + (95 / (2*23.75))2]= 1

K (New)

K = (1/6)*[2 + (D / (2*h))2]= (1/6)*[2 + (95 / (2*23.75))2]= 1

Design thickness for internal pressure, (Corroded at 300 °F) Appendix 1-4(c)

t = P*Do*K / (2*S*E + 2*P*(K - 0.1)) + Corrosion

= 125.2166*96*1 / (2*20000*0.7 + 2*125.2166*(1 - 0.1)) + 0= 0.4259"

The head internal pressure design thickness is 0.4259".

Maximum allowable working pressure, (Corroded at 300 °F) Appendix 1-4(c)

P = 2*S*E*t / (K*Do - 2*t*(K - 0.1)) - Ps


Ellipsoidal Head #2

= 2*20000*0.7*0.5 / (1*96 - 2*0.5*(1 - 0.1)) - 0.2166= 146.9969 psi

The maximum allowable working pressure (MAWP) is 146.9969 psi.

Maximum allowable pressure, (New at 70 °F) Appendix 1-4(c)

P = 2*S*E*t / (K*Do - 2*t*(K - 0.1)) - Ps

= 2*20000*0.7*0.5 / (1*96 - 2*0.5*(1 - 0.1)) - 0= 147.2135 psi

The maximum allowable pressure (MAP) is 147.2135 psi.

Design thickness for external pressure, (Corroded at 300 °F) UG-33(d)

Equivalent outside spherical radius (Ro)

Ro = Ko*Do

= 0.8907 * 96 = 85.5093 in

A = 0.125 / (Ro/t)

= 0.125 / (85.5093/0.246972) = 0.000361

From Table CS-2: B=5,193.4536 psi

Pa = B/(Ro/t)

= 5,193.454/(85.5093/0.246972) = 15 psi

t = 0.247" + Corrosion = 0.247" + 0" = 0.247"

Check the external pressure per UG-33(a)(1) Appendix 1-4(c)

t = 1.67*Pe*Do*K / (2*S*E + 2*1.67*Pe*(K - 0.1)) + Corrosion

= 1.67*15*96*1 / (2*20000*1 + 2*1.67*15*(1 - 0.1)) + 0= 0.0601"

The head external pressure design thickness (te) is 0.246972".

Maximum Allowable External Pressure, (Corroded at 300 °F) UG-33(d)


Ellipsoidal Head #2


Ro = Ko*Do

= 0.8907 * 96 = 85.5093 in

A = 0.125 / (Ro/t)

= 0.125 / (85.5093/0.5) = 0.000731


Pa = B/(Ro/t)

= 10,545.29/(85.5093/0.5) = 61.6617 psi

Check the Maximum External Pressure, UG-33(a)(1) Appendix 1-4(c)

P = 2*S*E*t / ((K*Do - 2*t*(K - 0.1))*1.67) - Ps2

= 2*20000*1*0.5 / ((1*96 - 2*0.5*(1 - 0.1))*1.67) - 0= 125.9311 psi

The maximum allowable external pressure (MAEP) is 61.6617 psi.


= (75*t / Rf)*(1 - Rf / Ro)

= (75*0.5 / 16.4)*(1 - 16.4 / ∞)

= 2.2866%

The extreme fiber elongation does not exceed 5%.





Component: Straight FlangeMaterial specification: SA-516 70 (ASME II-D p. 14, ln. 31)Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 33.6 °F, (coincident ratio = 0.6642336)UCS-66 governing thickness = 0.5 in


Static liquid head:






Radiography: Longitudinal joint - None UW-11(c) Type 1Circumferential joint - None UW-11(c) Type 1


OD = 96.0000"Length Lc = 2.0000"

t = 0.5000"



= 125.2888*48.0000/(20000.0000*0.70 + 0.40*125.2888) + 0.0000= 0.4281"

file:///C|/Codeware/COMPRESS/Temp/CW0AF00553.html (1 of 10) [9/6/2005 2:13:27 PM]



P = S*E*t/(Ro - 0.40*t) - Ps

= 20000.0000*0.70*0.5000 / (48.0000 - 0.40*0.5000) - 0.2888= 146.1547 psi


P = S*E*t/(Ro - 0.40*t)

= 20000.0000*0.70*0.5000 / (48.0000 - 0.40*0.5000)= 146.4435 psi


L/Do = 111.8333/96.0000 = 1.1649

Do/t = 96.0000/0.329221 = 291.5970



Pa = 4*B/(3*(Do/t))

= 4*3280.4565/(3*(96.0000/0.329221))

= 15.0000 psi


= t + Corrosion = 0.329221 + 0.0000 = 0.3292"


L/Do = 111.8333/96.0000 = 1.1649

Do/t = 96.0000/0.5000 = 192.0000



Pa = 4*B/(3*(Do/t))

= 4*6256.9512/(3*(96.0000/0.5000))



= 43.4510 psi


= (50 * t / Rf) * (1 - Rf / Ro)

= (50 * 0.5000 / 47.7500) * (1 - 47.7500 / ∞)= 0.5236 %






Allowable Stress Before UG-23 Stress

Increase ( psi)Temperature

(°F)Corrosion

C (in)Load

Req'd Thk

Due to Tension

(in)

Req'd Thk Due to

Compression (in)St Sc


125.00 20000.00 13265.59 300.00 0.0000 Seismic 0.1762 0.1760


125.00 20000.00 13265.59 300.00 0.0000 Seismic 0.1762 0.1760


0.00 20000.00 13265.59 300.00 0.0000 Seismic 0.0003 0.0004

Hot Shut Down, New

0.00 20000.00 13265.59 300.00 0.0000 Seismic 0.0003 0.0004

Empty, Corroded 0.00 20000.00 13265.59 0.00 0.0000 Seismic 0.0003 0.0004

Empty, New 0.00 20000.00 13265.59 0.00 0.0000 Seismic 0.0003 0.0004

Vacuum -15.00 20000.00 13265.59 300.00 0.0000 Seismic 0.0227 0.0228




0.00 20000.00 13265.59 300.00 0.0000 Weight 0.0004 0.0005


A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi

ScHC = 13265.5928 psi


ScHN = ScHC

= 13265.5928 psi


A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi

ScCN = 13265.5928 psi




ScCC = ScCN

= 13265.5928 psi


A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi

ScVC = 13265.5928 psi

Operating, Hot & Corroded, Seismic, Bottom Seam


= 125.0000*47.5000/(2*20000.0000*1.2000*0.70 + 0.40*|125.0000|)

= 0.1764"


= 4623.04/(π*47.75002*20000.0000*1.2000*0.70)

= 0.0000"


= 1608.88/(2*π*47.7500*20000.0000*1.2000*0.70)

= 0.0003"


= 0.176449 + 0.000038 - (0.000319)

= 0.1762"


= 1.2000 * 1608.88/(2*π*47.7500*20000.0000*1.2000*0.70)

= 0.0004"




= |0.000038 + (0.000383) - (0.176449)|

= 0.1760"



=2*20000.0000*1.2000*0.70*(0.5000-0.000038+(0.000319)) / (47.5000 - 0.40*(0.5000-0.000038+(0.000319)))

= 355.3800 psi

Operating, Hot & New, Seismic, Bottom Seam


= 125.0000*47.5000/(2*20000.0000*1.2000*0.70 + 0.40*|125.0000|)

= 0.1764"


= 4623.04/(π*47.75002*20000.0000*1.2000*0.70)

= 0.0000"


= 1608.88/(2*π*47.7500*20000.0000*1.2000*0.70)

= 0.0003"


= 0.176449 + 0.000038 - (0.000319)

= 0.1762"


= 1.2000 * 1608.88/(2*π*47.7500*20000.0000*1.2000*0.70)

= 0.0004"


= |0.000038 + (0.000383) - (0.176449)|

= 0.1760"





=2*20000.0000*1.2000*0.70*(0.5000-0.000038+(0.000319)) / (47.5000 - 0.40*(0.5000-0.000038+(0.000319)))

= 355.3800 psi

Hot Shut Down, Corroded, Seismic, Bottom Seam



= 4623.04/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0003"


= |0.000000 + 0.000041 - (0.000337)|

= 0.0003"


= 1.2000 * 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0004"


= 0.000041 + (0.000404) - (0.000000)

= 0.0004"

Hot Shut Down, New, Seismic, Bottom Seam



= 4623.04/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 1608.88/(2*π*47.7500*13265.5928*1.2000)



= 0.0003"


= |0.000000 + 0.000041 - (0.000337)|

= 0.0003"


= 1.2000 * 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0004"


= 0.000041 + (0.000404) - (0.000000)

= 0.0004"

Empty, Corroded, Seismic, Bottom Seam



= 3699.76/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0003"


= |0.000000 + 0.000032 - (0.000337)|

= 0.0003"


= 1.2000 * 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0004"


= 0.000032 + (0.000404) - (0.000000)

= 0.0004"

Empty, New, Seismic, Bottom Seam





= 3699.76/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0003"


= |0.000000 + 0.000032 - (0.000337)|

= 0.0003"


= 1.2000 * 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0004"


= 0.000032 + (0.000404) - (0.000000)

= 0.0004"

Vacuum, Seismic, Bottom Seam


= -15.0000*47.5000/(2*13265.5928*1.2000 + 0.40*|15.0000|)

= -0.0224"


= 4623.04/(π*47.75002*13265.5928*1.2000)

= 0.0000"


= 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0003"


= |-0.022375 + 0.000041 - (0.000337)|

= 0.0227"




= 1.2000 * 1608.88/(2*π*47.7500*13265.5928*1.2000)

= 0.0004"


= 0.000041 + (0.000404) - (-0.022375)

= 0.0228"

Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Seismic, Bottom Seam



= 1384.25/(π*47.75002*13265.5928*1.0000)

= 0.0000"


= 1608.88/(2*π*47.7500*13265.5928*1.0000)

= 0.0004"


= |0.000000 + 0.000015 - (0.000404)|

= 0.0004"


= 1.2000 * 1608.88/(2*π*47.7500*13265.5928*1.0000)

= 0.0005"


= 0.000015 + (0.000485) - (0.000000)

= 0.0005"





Component: Straight FlangeMaterial specification: SA-516 70 (ASME II-D p. 14, ln. 31)Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.7 °F, (coincident ratio = 0.682717)UCS-66 governing thickness = 0.5 in


Static liquid head:






Radiography: Longitudinal joint - None UW-11(c) Type 1Circumferential joint - None UW-11(c) Type 1


OD = 96.0000"Length Lc = 2.0000"

t = 0.5000"



= 128.6819*48.0000/(20000.0000*0.70 + 0.40*128.6819) + 0.0000= 0.4396"

file:///C|/Codeware/COMPRESS/Temp/CW5FFBFD79.html (1 of 10) [9/6/2005 2:13:28 PM]



P = S*E*t/(Ro - 0.40*t) - Ps

= 20000.0000*0.70*0.5000 / (48.0000 - 0.40*0.5000) - 3.6819= 142.7616 psi


P = S*E*t/(Ro - 0.40*t)

= 20000.0000*0.70*0.5000 / (48.0000 - 0.40*0.5000)= 146.4435 psi


L/Do = 111.8333/96.0000 = 1.1649

Do/t = 96.0000/0.329221 = 291.5970



Pa = 4*B/(3*(Do/t))

= 4*3280.4565/(3*(96.0000/0.329221))

= 15.0000 psi


= t + Corrosion = 0.329221 + 0.0000 = 0.3292"


L/Do = 111.8333/96.0000 = 1.1649

Do/t = 96.0000/0.5000 = 192.0000



Pa = 4*B/(3*(Do/t))

= 4*6256.9512/(3*(96.0000/0.5000))



= 43.4510 psi


= (50 * t / Rf) * (1 - Rf / Ro)

= (50 * 0.5000 / 47.7500) * (1 - 47.7500 / ∞)= 0.5236 %






Allowable Stress Before UG-23 Stress

Increase ( psi)Temperature

(°F)Corrosion

C (in)Load

Req'd Thk

Due to Tension

(in)

Req'd Thk Due to

Compression (in)St Sc


125.00 20000.00 13265.59 300.00 0.0000 Seismic 0.1840 0.1827


125.00 20000.00 13265.59 300.00 0.0000 Seismic 0.1840 0.1827


0.00 20000.00 13265.59 300.00 0.0000 Seismic 0.0076 0.0062

Hot Shut Down, New

0.00 20000.00 13265.59 300.00 0.0000 Seismic 0.0076 0.0062

Empty, Corroded 0.00 20000.00 13265.59 0.00 0.0000 Seismic 0.0004 0.0003

Empty, New 0.00 20000.00 13265.59 0.00 0.0000 Seismic 0.0004 0.0003

Vacuum -15.00 20000.00 13265.59 300.00 0.0000 Seismic 0.0144 0.0158




0.00 20000.00 13265.59 300.00 0.0000 Weight 0.0091 0.0075


A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi

ScHC = 13265.5928 psi


ScHN = ScHC

= 13265.5928 psi


A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi

ScCN = 13265.5928 psi




ScCC = ScCN

= 13265.5928 psi


A = 0.125 / (Ro / t)

= 0.125 / (48.0000 / 0.5000)

= 0.001302

B = 13265.5928 psi

S = 20000.0000 / 1.0000

= 20000.0000 psi

ScVC = 13265.5928 psi

Operating, Hot & Corroded, Seismic, Top Seam


= 125.0000*47.5000/(2*20000.0000*1.2000*0.70 + 0.40*|125.0000|)

= 0.1764"


= 4409.57/(π*47.75002*20000.0000*1.2000*0.70)

= 0.0000"

tw = VAccel * W/(2*π*Rm*St*Ks*Ec) (Weight)

= 1.2000 * -31670.04/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0075"


= 0.176449 + 0.000037 - (-0.007540)

= 0.1840"

twc = W/(2*π*Rm*St*Ks*Ec) (Weight)

= -31670.04/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0063"




= |0.000037 + (-0.006283) - (0.176449)|

= 0.1827"



=2*20000.0000*1.2000*0.70*(0.5000-0.000037+(-0.006283)) / (47.5000 - 0.40*(0.5000-0.000037+(-0.006283)))

= 350.6716 psi

Operating, Hot & New, Seismic, Top Seam


= 125.0000*47.5000/(2*20000.0000*1.2000*0.70 + 0.40*|125.0000|)

= 0.1764"


= 4409.57/(π*47.75002*20000.0000*1.2000*0.70)

= 0.0000"


= 1.2000 * -31670.04/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0075"


= 0.176449 + 0.000037 - (-0.007540)

= 0.1840"


= -31670.04/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0063"


= |0.000037 + (-0.006283) - (0.176449)|

= 0.1827"





=2*20000.0000*1.2000*0.70*(0.5000-0.000037+(-0.006283)) / (47.5000 - 0.40*(0.5000-0.000037+(-0.006283)))

= 350.6716 psi

Hot Shut Down, Corroded, Seismic, Top Seam



= 4409.57/(π*47.75002*20000.0000*1.2000*0.70)

= 0.0000"


= 1.2000 * -31670.04/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0075"


= 0.000000 + 0.000037 - (-0.007540)

= 0.0076"


= -31670.04/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0063"


= |0.000037 + (-0.006283) - (0.000000)|

= 0.0062"

Hot Shut Down, New, Seismic, Top Seam



= 4409.57/(π*47.75002*20000.0000*1.2000*0.70)

= 0.0000"


= 1.2000 * -31670.04/(2*π*47.7500*20000.0000*1.2000*0.70)



= -0.0075"


= 0.000000 + 0.000037 - (-0.007540)

= 0.0076"


= -31670.04/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0063"


= |0.000037 + (-0.006283) - (0.000000)|

= 0.0062"

Empty, Corroded, Seismic, Top Seam



= 2422.74/(π*47.75002*20000.0000*1.2000*0.70)

= 0.0000"


= 1.2000 * -1612.87/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0004"


= 0.000000 + 0.000020 - (-0.000384)

= 0.0004"


= -1612.87/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0003"


= |0.000020 + (-0.000320) - (0.000000)|

= 0.0003"

Empty, New, Seismic, Top Seam





= 2422.74/(π*47.75002*20000.0000*1.2000*0.70)

= 0.0000"


= 1.2000 * -1612.87/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0004"


= 0.000000 + 0.000020 - (-0.000384)

= 0.0004"


= -1612.87/(2*π*47.7500*20000.0000*1.2000*0.70)

= -0.0003"


= |0.000020 + (-0.000320) - (0.000000)|

= 0.0003"

Vacuum, Seismic, Top Seam


= -15.0000*47.5000/(2*13265.5928*1.2000 + 0.40*|15.0000|)

= -0.0224"


= 4409.57/(π*47.75002*13265.5928*1.2000)

= 0.0000"

tw = VAccel * W/(2*π*Rm*Sc*Ks) (Weight)

= 1.2000 * -31670.04/(2*π*47.7500*13265.5928*1.2000)

= -0.0080"


= |-0.022375 + 0.000039 - (-0.007957)|

= 0.0144"



twc = W/(2*π*Rm*Sc*Ks) (Weight)

= -31670.04/(2*π*47.7500*13265.5928*1.2000)

= -0.0066"


= 0.000039 + (-0.006631) - (-0.022375)

= 0.0158"

Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Seismic, Top Seam



= 1459.96/(π*47.75002*20000.0000*1.0000*0.70)

= 0.0000"


= 1.2000 * -31670.04/(2*π*47.7500*20000.0000*1.0000*0.70)

= -0.0090"


= 0.000000 + 0.000015 - (-0.009048)

= 0.0091"


= -31670.04/(2*π*47.7500*20000.0000*1.0000*0.70)

= -0.0075"


= |0.000015 + (-0.007540) - (0.000000)|

= 0.0075"


Ellipsoidal Head #1

Ellipsoidal Head #1

ASME Section VIII, Division 1, 2001 Edition, A03 Addenda

Component: Ellipsoidal Head Material Specification: SA-516 70 (ASME II-D p.14, ln. 31)Material impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 31.6 °F, (coincident ratio = 0.684324)UCS-66 governing thickness = 0.5 in

Internal design pressure: P = 125 psi @ 300 °FExternal design pressure: Pe = 15 psi @ 300 °F

Static liquid head:

Ps= 4.5392 psi (SG=1, Hs=126.25" Operating head)

Pth= 3.6278 psi (SG=1, Hs=100.5" Horizontal test head)

Corrosion allowance: Inner C = 0" Outer C = 0"

Design MDMT = -20°F No impact test performed Rated MDMT = -38.6°F Material is not normalized

Material is not produced to fine grain practice PWHT is not performed Do not Optimize MDMT / Find MAWP

Radiography: Category A joints - None UW-11(c) Type 1 Head to shell seam - None UW-11(c) Type 1

Estimated weight*: new = 1,572.20 lb corr = 1,572.20 lb Capacity*: new = 547.2 US gal corr = 547.2 US gal* includes straight flange

Outer diameter = 96"Minimum head thickness = 0.5"Head ratio D/2h = 2 (new)Head ratio D/2h = 2 (corroded)Straight flange length Lsf = 2"Nominal straight flange thickness tsf = 0.5"

file:///C|/Codeware/COMPRESS/Temp/CW7B475AA6.html (1 of 4) [9/6/2005 2:13:28 PM]

Ellipsoidal Head #1

Insulation thk*: 0" density: 0 lb/ft3 weight: 0 lb Insulation support ring spacing:

0" individual weight: 0 lb total weight: 0 lb

Lining/ref thk*: 0" density: 0 lb/ft3 weight: 0 lb* includes straight flange if applicable

Results Summary

The governing condition is internal pressure.Minimum thickness per UG-16 = 0.0625" + 0" = 0.0625"Design thickness due to internal pressure (t) = 0.4405"Design thickness due to external pressure (te) = 0.247"

Maximum allowable working pressure (MAWP) = 142.6742 psi

Maximum allowable pressure (MAP) = 147.2135 psi

Maximum allowable external pressure (MAEP) = 61.6617 psi

K (Corroded)

K = (1/6)*[2 + (D / (2*h))2]= (1/6)*[2 + (95 / (2*23.75))2]= 1

K (New)

K = (1/6)*[2 + (D / (2*h))2]= (1/6)*[2 + (95 / (2*23.75))2]= 1

Design thickness for internal pressure, (Corroded at 300 °F) Appendix 1-4(c)

t = P*Do*K / (2*S*E + 2*P*(K - 0.1)) + Corrosion

= 129.5392*96*1 / (2*20000*0.7 + 2*129.5392*(1 - 0.1)) + 0= 0.4405"

The head internal pressure design thickness is 0.4405".

Maximum allowable working pressure, (Corroded at 300 °F) Appendix 1-4(c)

P = 2*S*E*t / (K*Do - 2*t*(K - 0.1)) - Ps


Ellipsoidal Head #1

= 2*20000*0.7*0.5 / (1*96 - 2*0.5*(1 - 0.1)) - 4.5392= 142.6742 psi

The maximum allowable working pressure (MAWP) is 142.6742 psi.

Maximum allowable pressure, (New at 70 °F) Appendix 1-4(c)

P = 2*S*E*t / (K*Do - 2*t*(K - 0.1)) - Ps

= 2*20000*0.7*0.5 / (1*96 - 2*0.5*(1 - 0.1)) - 0= 147.2135 psi

The maximum allowable pressure (MAP) is 147.2135 psi.

Design thickness for external pressure, (Corroded at 300 °F) UG-33(d)


Ro = Ko*Do

= 0.8907 * 96 = 85.5093 in

A = 0.125 / (Ro/t)

= 0.125 / (85.5093/0.246972) = 0.000361


Pa = B/(Ro/t)

= 5,193.454/(85.5093/0.246972) = 15 psi

t = 0.247" + Corrosion = 0.247" + 0" = 0.247"

Check the external pressure per UG-33(a)(1) Appendix 1-4(c)

t = 1.67*Pe*Do*K / (2*S*E + 2*1.67*Pe*(K - 0.1)) + Corrosion

= 1.67*15*96*1 / (2*20000*1 + 2*1.67*15*(1 - 0.1)) + 0= 0.0601"

The head external pressure design thickness (te) is 0.246972".

Maximum Allowable External Pressure, (Corroded at 300 °F) UG-33(d)


Ellipsoidal Head #1


Ro = Ko*Do

= 0.8907 * 96 = 85.5093 in

A = 0.125 / (Ro/t)

= 0.125 / (85.5093/0.5) = 0.000731


Pa = B/(Ro/t)

= 10,545.29/(85.5093/0.5) = 61.6617 psi

Check the Maximum External Pressure, UG-33(a)(1) Appendix 1-4(c)

P = 2*S*E*t / ((K*Do - 2*t*(K - 0.1))*1.67) - Ps2

= 2*20000*1*0.5 / ((1*96 - 2*0.5*(1 - 0.1))*1.67) - 0= 125.9311 psi

The maximum allowable external pressure (MAEP) is 61.6617 psi.


= (75*t / Rf)*(1 - Rf / Ro)

= (75*0.5 / 16.4)*(1 - 16.4 / ∞)

= 2.2866%

The extreme fiber elongation does not exceed 5%.


Nozzle #1 (N1)

Nozzle #1 (N1)


tw(lower) = 0.1870 in

Leg41 = 0.2500 in

Note: round inside edges per UG-76(c)

Located on: Ellipsoidal Head #1Liquid static head included: 4.7648 psiNozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 15)Nozzle longitudinal joint efficiency: 1.00Nozzle description: 2.500" Sch 40 (Std)Flange description: 2.5 inch 150# WN A105Bolt Material: SA-193 B7 Bolt <= 2 1/2Flange rated MDMT: -55.00 °F(UCS-66(b)(1)(b))Liquid static head on flange: 4.7829 psiASME B16.5 flange rating MAWP: 230.00 psi @ 300.00°FASME B16.5 flange rating MAP: 285.00 psi @ 70.00°FASME B16.5 flange hydro test: 450.00 psi @ 70.00°FNozzle orientation: 0 °Calculated as hillside: noLocal vessel minimum thickness: 0.5000 inEnd of nozzle to datum line: -32.5000 inNozzle inside diameter, new: 2.4690 inNozzle nominal wall thickness: 0.2030 inNozzle corrosion allowance: 0.0000 inProjection available outside vessel, Lpr: 6.2609 inDistance to head center, R: 0.0000 in

file:///C|/Codeware/COMPRESS/Temp/CW342106F3.html (1 of 10) [9/6/2005 2:13:29 PM]

Nozzle #1 (N1)

Reinforcement Calculations for Internal Pressure

Available reinforcement per UG-37 governs the MAWP of this nozzle.

UG-37 Area Calculation Summary (in2)For P = 174.22 psi @ 300.00 °F

UG-45 Nozzle WallThickness Summary (in)The nozzle passes UG-45

Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

This nozzle is exempt from area calculations per UG-36(c)(3)(a) 0.1776 0.1776

Weld Failure Path Analysis Summary

The nozzle is exempt from weld strength calculations per UW-15(b)(2)

UW-16 Weld Sizing Summary

Weld descriptionRequired weldthroat size (in)

Actual weldthroat size (in)

Status

Nozzle to shell fillet (Leg41) 0.1421 0.1750 weld size is adequate

Nozzle to shell groove (Lower) 0.1421 0.1870 weld size is adequate

Calculations for internal pressure 174.22 psi @ 300.00 °F

Fig UCS-66.2 general note (1) applies.

Nozzle is impact test exempt per UCS-66(d)(NPS 4 or smaller pipe).

Nozzle UCS-66 governing thk: 0.1776 inNozzle rated MDMT: -155.00 °F

Limits of reinforcement per UG-40

Parallel to the vessel wall: d = 2.4690 in

Normal to the vessel wall outside: 2.5*(tn - Cn) + te = 0.5075 in

Nozzle required thickness per UG-27(c)(1)


Nozzle #1 (N1)

trn = P*Rn/(Sn*E - 0.6*P)

= 174.2156*1.2345/(17,100.00*1 - 0.6*174.2156)= 0.0127 in

Required thickness tr from UG-37(a)(3)

tr = P*K1*Do/(2*S*E + 0.8*P)

= 174.2156*0.9*96/(2*20,000.00*1 + 0.8*174.2156)= 0.3750 in

This opening does not require reinforcement per UG-36(c)(3)(a)

Area calculations for weld failure path analysis

Allowable stresses: Sn = 17,100.00, Sv = 20,000.00 psi

fr1 = lesser of 1 or Sn/Sv = 0.855


A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 2.469*0.375*1 + 2*0.203*0.375*1*(1 - 0.855)= 0.9480 in2

A1 = larger of the following= 0.3013 in2

= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)

= 2.469*(1*0.5 - 1*0.375) - 2*0.203*(1*0.5 - 1*0.375)*(1 - 0.855)= 0.3013 in2

= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)

= 2*(0.5 + 0.203)*(1*0.5 - 1*0.375) - 2*0.203*(1*0.5 - 1*0.375)*(1 - 0.855)= 0.1684 in2

A2 = smaller of the following= 0.1651 in2

= 5*(tn - trn)*fr2*t

= 5*(0.203 - 0.0127)*0.855*0.5= 0.4068 in2

= 5*(tn - trn)*fr2*tn= 5*(0.203 - 0.0127)*0.855*0.203


Nozzle #1 (N1)

= 0.1651 in2

A41 = Leg2*fr2

= 0.252*0.855 =0.0534 in2

UW-16(d) Weld Check

tmin = lesser of 0.75 or tn or t = 0.2030 in

t1(min) or t2(min) = lesser of 0.25 or 0.7*tmin = 0.1421 in

t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in

The weld size t1 is satisfactory.

t2(actual) = 0.187 in


t1 + t2 = 0.362 >= 1.25*tmin

The combined weld sizes for t1 and t2 are satisfactory.

UG-45 Nozzle Neck Thickness Check

Interpretation VIII-1-83-66 has been applied.

Wall thickness per UG-45(a): tr1 = 0.0127 in (E =1)

Wall thickness per UG-45(b)(1): tr2 = 0.4149 in

Wall thickness per UG-16(b): tr3 = 0.0625 in

Standard wall pipe per UG-45(b)(4): tr4 = 0.1776 in

The greater of tr2 or tr3: tr5 = 0.4149 in

The lesser of tr4 or tr5: tr6 = 0.1776 in

Required per UG-45 is the larger of tr1 or tr6 = 0.1776 in

Available nozzle wall thickness new, tn = 0.8750*0.2030 = 0.1776 in

The nozzle neck thickness is adequate.

Reinforcement Calculations for MAP

Available reinforcement per UG-37 governs the MAP of this nozzle.


Nozzle #1 (N1)



Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status









= 174.1972*1.2345/(17,100.00*1 - 0.6*174.1972)= 0.0127 in


tr = P*K1*Do/(2*S*E + 0.8*P)

= 174.1972*0.9*96/(2*20,000.00*1 + 0.8*174.1972)= 0.3750 in



Nozzle #1 (N1)





A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 2.469*0.37496*1 + 2*0.203*0.37496*1*(1 - 0.855)= 0.9479 in2



= 2.469*(1*0.5 - 1*0.37496) - 2*0.203*(1*0.5 - 1*0.37496)*(1 - 0.855)= 0.3014 in2


= 2*(0.5 + 0.203)*(1*0.5 - 1*0.37496) - 2*0.203*(1*0.5 - 1*0.37496)*(1 - 0.855)= 0.1684 in2



= 5*(0.203 - 0.0127)*0.855*0.5= 0.4068 in2

= 5*(tn - trn)*fr2*tn= 5*(0.203 - 0.0127)*0.855*0.203= 0.1651 in2

A41 = Leg2*fr2

= 0.252*0.855 =0.0534 in2

UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in


Nozzle #1 (N1)




t1 + t2 = 0.362 >= 1.25*tmin













Reinforcement Calculations for External Pressure

UG-37 Area Calculation Summary (in2)For Pe = 36.74 psi @ 300.00 °FThe opening is adequately reinforced


Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

0.4881 0.4881 0.2744 0.1603 -- -- 0.0534 0.0880 0.1776


Weld strength calculations are not required for external pressure


Nozzle #1 (N1)




Status



Calculations for external pressure 36.74 psi @ 300.00 °F




Nozzle required thickness per UG-28 trn = 0.0182 in

From UG-37(d)(1) required thickness tr = 0.3862 in

Area required per UG-37(d)(1)




A = 0.5*(d*tr*F + 2*tn*tr*F*(1 - fr1))

= 0.5*(2.469*0.38616*1 + 2*0.203*0.38616*1*(1 - 0.855))= 0.4881 in2

Area available from FIG. UG-37.1



= 2.469*(1*0.5 - 1*0.38616) - 2*0.203*(1*0.5 - 1*0.38616)*(1 - 0.855)= 0.2744 in2



Nozzle #1 (N1)

= 2*(0.5 + 0.203)*(1*0.5 - 1*0.38616) - 2*0.203*(1*0.5 - 1*0.38616)*(1 - 0.855)= 0.1534 in2



= 5*(0.203 - 1.824298E-02)*0.855*0.5= 0.3949 in2

= 5*(tn - trn)*fr2*tn= 5*(0.203 - 1.824298E-02)*0.855*0.203= 0.1603 in2

A41 = Leg2*fr2

= 0.252*0.855 =0.0534 in2

Area = A1 + A2 + A41

= 0.2744 + 0.1603 + 0.0534= 0.4881 in2

As Area >= A the reinforcement is adequate.

UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin




Wall thickness per UG-45(a): tr1 = 0.0182 in



Nozzle #1 (N1)









L/Do = 6.2609/2.8750 = 2.1777

Do/t = 2.8750/0.018243 = 157.5949



Pa = 4*B/(3*(Do/t))

= 4*4342.7334/(3*(2.8750/0.018243))

= 36.7417 psi


= t + Corrosion = 0.018243 + 0.0000 = 0.0182"


Nozzle #2 (N2)

Nozzle #2 (N2)



Leg41 = 0.3750 in

Leg43 = 0.3750 in

hnew = 0.3750 in


Located on: Cylinder #1Liquid static head included: 3.1134 psiNozzle material specification: SA-106 C Smls pipe (ASME II-D p. 18, ln. 1)Nozzle longitudinal joint efficiency: 1.00Nozzle description: 18" Sch 60Nozzle orientation: 180 °Local vessel minimum thickness: 0.5000 inNozzle center line offset to datum line: 22.0000 inEnd of nozzle to shell center: 51.1250 inNozzle inside diameter, new: 16.5000 inNozzle nominal wall thickness: 0.7500 inNozzle corrosion allowance: 0.0000 inProjection available outside vessel, Lpr: 3.1250 in



UG-37 Area Calculation Summary (in2)For P = 137.00 psi @ 300.00 °FThe opening is adequately reinforced


file:///C|/Codeware/COMPRESS/Temp/CW7430761C.html (1 of 13) [9/6/2005 2:13:30 PM]

Nozzle #2 (N2)

Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

5.4105 5.4165 2.8395 1.7333 0.5625 -- 0.2812 0.0625 0.6563

Weld Failure Path Analysis Summary (lbf)All failure paths are stronger than the applicable weld loads

Weld loadW

Weld loadW1-1

Path 1-1strength

Weld loadW2-2

Path 2-2strength

56,583.01 37,478.00 388,418.69 66,540.00 364,738.91




Status


Nozzle to inside shell fillet (Leg43) 0.2500 0.2625(corroded)

weld size is adequate




Nozzle impact test exemption temperature from Fig UCS-66 Curve B = -7 °FFig UCS-66.1 MDMT reduction = 40.6 °F, (coincident ratio = 0.5953).



Parallel to the vessel wall: d = 16.5000 inNormal to the vessel wall outside: 2.5*(t - C) = 1.2500 inNormal to the vessel wall inside: 2.5*(t - C) = 1.2500 in



Nozzle #2 (N2)


= 137.0036*8.25/(20,000.00*1 - 0.6*137.0036)= 0.0567 in

Required thickness tr from UG-37(a)

tr = P*Ro/(S*E + 0.4*P)

= 137.0036*48/(20,000.00*1 + 0.4*137.0036)= 0.3279 in

Area required per UG-37(c)


fr1 = lesser of 1 or Sn/Sv = 1


A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 16.5*0.32791*1 + 2*0.75*0.32791*1*(1 - 1)= 5.4105 in2




= 16.5*(1*0.5 - 1*0.32791) - 2*0.75*(1*0.5 - 1*0.32791)*(1 - 1)= 2.8395 in2


= 2*(0.5 + 0.75)*(1*0.5 - 1*0.32791) - 2*0.75*(1*0.5 - 1*0.32791)*(1 - 1)= 0.4302 in2



= 5*(0.75 - 0.0567)*1*0.5= 1.7333 in2

= 5*(tn - trn)*fr2*tn= 5*(0.75 - 0.0567)*1*0.75= 2.5999 in2


Nozzle #2 (N2)


= 5*t*ti*fr2

= 5*0.5*0.75*1= 1.8750 in2

= 5*ti*ti*fr2

= 5*0.75*0.75*1= 2.8125 in2

= 2*h*ti*fr2

= 2*0.375*0.75*1= 0.5625 in2

A41 = Leg2*fr2

= 0.3752*1 =0.1406 in2

A43 = Leg2*fr2

= 0.3752*1 = 0.1406 in2

Area = A1 + A2 + A3 + A41 + A43

= 2.8395 + 1.7333 + 0.5625 + 0.1406 + 0.1406= 5.4165 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in




t1 + t2 = 0.6375 >= 1.25*tmin


UG-45 Nozzle Neck Thickness Check (Access Opening)


Nozzle #2 (N2)

Wall thickness req'd per UG-45(a): tr1 = 0.0567 in (E =1)




Allowable stresses in joints UG-45(c) and UW-15(c)

Groove weld in tension: 0.74*20,000.00 = 14,800.00 psiNozzle wall in shear: 0.7*20,000.00 = 14,000.00 psiInner fillet weld in shear: 0.49*20,000.00 = 9,800.00 psiLower fillet weld in shear: 0.49*20,000.00 = 9,800.00 psi

Strength of welded joints:

(1) Inner fillet weld in shear(π/2)*Nozzle OD*Leg*Si = (π/2)*18*0.375*9,800.00 = 103,908.2 lbf

(3) Nozzle wall in shear(π/2)*Mean nozzle dia*tn*Sn = (π/2)*17.25*0.75*14,000.00 = 284,510.5 lbf

(4) Groove weld in tension(π/2)*Nozzle OD*tw*Sg = (π/2)*18*0.375*14,800.00 = 156,922.5 lbf

(5) Lower fillet weld in shear(π/2)*Nozzle OD*Leg*Sl = (π/2)*18*0.375*9,800.00 = 103,908.2 lbf

Loading on welds per UG-41(b)(1)

W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (5.410515 - 2.8395 + 2*0.75*1*(1*0.5 - 1*0.32791))*20,000.00= 56,583.01 lbf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (1.7333 + 0 + 0.1406 + 0)*20,000.00= 37,478.00 lbf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (1.7333 + 0.5625 + 0.1406 + 0.1406 + 2*0.75*0.5*1)*20,000.00= 66,540.00 lbf


Nozzle #2 (N2)

Load for path 1-1 lesser of W or W1-1 = 37,478.00 lbf

Path 1-1 through (1) & (3) = 103,908.2 + 284,510.5 = 388,418.7 lbf

Path 1-1 is stronger than W1-1 so it is acceptable per UG-41(b)(1).


Path 2-2 through (1), (4), (5) = 103,908.2 + 156,922.5 + 103,908.2 = 364,738.9 lbf

Path 2-2 is stronger than W so it is acceptable per UG-41(b)(2).





Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

5.4125 5.4142 2.8375 1.7330 0.5625 -- 0.2812 0.0625 0.6563


Weld loadW

Weld loadW1-1

Path 1-1strength

Weld loadW2-2

Path 2-2strength

56,658.99 37,472.00 388,418.69 66,534.00 364,738.91




Status







Nozzle #2 (N2)





= 137.0544*8.25/(20,000.00*1 - 0.6*137.0544)= 0.0568 in


tr = P*Ro/(S*E + 0.4*P)

= 137.0544*48/(20,000.00*1 + 0.4*137.0544)= 0.3280 in





A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 16.5*0.32803*1 + 2*0.75*0.32803*1*(1 - 1)= 5.4125 in2




= 16.5*(1*0.5 - 1*0.32803) - 2*0.75*(1*0.5 - 1*0.32803)*(1 - 1)= 2.8375 in2


= 2*(0.5 + 0.75)*(1*0.5 - 1*0.32803) - 2*0.75*(1*0.5 - 1*0.32803)*(1 - 1)= 0.4299 in2



Nozzle #2 (N2)


= 5*(0.75 - 0.0568)*1*0.5= 1.7330 in2

= 5*(tn - trn)*fr2*tn= 5*(0.75 - 0.0568)*1*0.75= 2.5995 in2


= 5*t*ti*fr2

= 5*0.5*0.75*1= 1.8750 in2

= 5*ti*ti*fr2

= 5*0.75*0.75*1= 2.8125 in2

= 2*h*ti*fr2

= 2*0.375*0.75*1= 0.5625 in2

A41 = Leg2*fr2

= 0.3752*1 =0.1406 in2

A43 = Leg2*fr2

= 0.3752*1 = 0.1406 in2

Area = A1 + A2 + A3 + A41 + A43

= 2.8375 + 1.733 + 0.5625 + 0.1406 + 0.1406= 5.4142 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in



Nozzle #2 (N2)



t1 + t2 = 0.6375 >= 1.25*tmin



Wall thickness req'd per UG-45(a): tr1 = 0.0568 in (E =1)





Groove weld in tension: 0.74*20,000.00 = 14,800.00 psiNozzle wall in shear: 0.7*20,000.00 = 14,000.00 psiInner fillet weld in shear: 0.49*20,000.00 = 9,800.00 psiLower fillet weld in shear: 0.49*20,000.00 = 9,800.00 psi


(1) Inner fillet weld in shear(π/2)*Nozzle OD*Leg*Si = (π/2)*18*0.375*9,800.00 = 103,908.2 lbf


(4) Groove weld in tension(π/2)*Nozzle OD*tw*Sg = (π/2)*18*0.375*14,800.00 = 156,922.5 lbf

(5) Lower fillet weld in shear(π/2)*Nozzle OD*Leg*Sl = (π/2)*18*0.375*9,800.00 = 103,908.2 lbf


W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (5.412495 - 2.8375 + 2*0.75*1*(1*0.5 - 1*0.32803))*20,000.00= 56,658.99 lbf


Nozzle #2 (N2)

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (1.733 + 0 + 0.1406 + 0)*20,000.00= 37,472.00 lbf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (1.733 + 0.5625 + 0.1406 + 0.1406 + 2*0.75*0.5*1)*20,000.00= 66,534.00 lbf


Path 1-1 through (1) & (3) = 103,908.2 + 284,510.5 = 388,418.7 lbf



Path 2-2 through (1), (4), (5) = 103,908.2 + 156,922.5 + 103,908.2 = 364,738.9 lbf





Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

3.6222 3.6223 1.0055 1.7731 0.5625 -- 0.2812 0.0625 0.6563






Status






Nozzle #2 (N2)










A = 0.5*(d*tr*F + 2*tn*tr*F*(1 - fr1))

= 0.5*(16.5*0.43906*1 + 2*0.75*0.43906*1*(1 - 1))= 3.6222 in2




= 16.5*(1*0.5 - 1*0.43906) - 2*0.75*(1*0.5 - 1*0.43906)*(1 - 1)= 1.0055 in2


= 2*(0.5 + 0.75)*(1*0.5 - 1*0.43906) - 2*0.75*(1*0.5 - 1*0.43906)*(1 - 1)= 0.1523 in2




Nozzle #2 (N2)

= 5*(0.75 - 4.075103E-02)*1*0.5= 1.7731 in2

= 5*(tn - trn)*fr2*tn= 5*(0.75 - 4.075103E-02)*1*0.75= 2.6597 in2


= 5*t*ti*fr2

= 5*0.5*0.75*1= 1.8750 in2

= 5*ti*ti*fr2

= 5*0.75*0.75*1= 2.8125 in2

= 2*h*ti*fr2

= 2*0.375*0.75*1= 0.5625 in2

A41 = Leg2*fr2

= 0.3752*1 =0.1406 in2

A43 = Leg2*fr2

= 0.3752*1 = 0.1406 in2

Area = A1 + A2 + A3 + A41 + A43

= 1.0055 + 1.7731 + 0.5625 + 0.1406 + 0.1406= 3.6223 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in





Nozzle #2 (N2)

t1 + t2 = 0.6375 >= 1.25*tmin



Wall thickness req'd per UG-45(a): tr1 = 0.0408 in





L/Do = 3.9763/18.0000 = 0.2209

Do/t = 18.0000/0.040751 = 441.7067


From table CS-2: B = 10381.8535

Pa = 4*B/(3*(Do/t))

= 4*10381.8535/(3*(18.0000/0.040751))

= 31.3386 psi


= t + Corrosion = 0.040751 + 0.0000 = 0.0408"


Nozzle #3 (N3)

Nozzle #3 (N3)



Leg41 = 0.3750 in


Located on: Ellipsoidal Head #2Liquid static head included: 0 psiNozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 15)Nozzle longitudinal joint efficiency: 1.00Nozzle description: 4" Sch 80 (XS)Flange description: 4 inch 150# WN A105Bolt Material: SA-193 B7 Bolt <= 2 1/2Flange rated MDMT: -55.00 °F(UCS-66(b)(1)(b))Liquid static head on flange: 0 psiASME B16.5 flange rating MAWP: 230.00 psi @ 300.00°FASME B16.5 flange rating MAP: 285.00 psi @ 70.00°FASME B16.5 flange hydro test: 450.00 psi @ 70.00°FNozzle orientation: 0 °Calculated as hillside: yes (perpendicular)Local vessel minimum thickness: 0.5000 inNozzle center line offset to datum line: 104.8125 inNozzle inside diameter, new: 3.8260 inNozzle nominal wall thickness: 0.3370 inNozzle corrosion allowance: 0.0000 inOpening chord length: 5.4438 inProjection available outside vessel, Lpr: 8.0918 inDistance to head center, R: 53.0000 in

file:///C|/Codeware/COMPRESS/Temp/CW17153024.html (1 of 12) [9/6/2005 2:13:31 PM]

Nozzle #3 (N3)





Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

1.6581 1.6588 1.0734 0.4652 -- -- 0.1202 0.2074 0.2949


Weld loadW

Weld loadW1-1

Path 1-1strength

Weld loadW2-2

Path 2-2strength

14,008.62 11,708.00 48,588.89 17,470.70 48,364.13




Status





Nozzle is impact test exempt to -155 °F per UCS-66(b)(3) (coincident ratio = 0.04618).





Nozzle #3 (N3)




= 125.3767*1.913/(17,100.00*1 - 0.6*125.3767)= 0.0141 in


tr = P*Do*K / (2*S*E + 2*P*(K - 0.1))

= 125.3767*96*1 / (2*20000*1 + 2*125.3767*(1 - 0.1)) = 0.2992"





A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 5.443769*0.29922*1 + 2*0.337*0.29922*1*(1 - 0.855)= 1.6581 in2




= 5.443769*(1*0.5 - 1*0.29922) - 2*0.337*(1*0.5 - 1*0.29922)*(1 - 0.855)= 1.0734 in2


= 2*(0.5 + 0.337)*(1*0.5 - 1*0.29922) - 2*0.337*(1*0.5 - 1*0.29922)*(1 - 0.855)= 0.3165 in2



= 5*(0.337 - 0.0141)*0.855*0.5= 0.6902 in2


Nozzle #3 (N3)

= 5*(tn - trn)*fr2*tn= 5*(0.337 - 0.0141)*0.855*0.337= 0.4652 in2

A41 = Leg2*fr2

= 0.3752*0.855 =0.1202 in2

Area = A1 + A2 + A41

= 1.0734 + 0.4652 + 0.1202= 1.6588 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in




t1 + t2 = 0.5125 >= 1.25*tmin













Nozzle #3 (N3)



Groove weld in tension: 0.74*20,000.00 = 14,800.00 psiNozzle wall in shear: 0.7*17,100.00 = 11,970.00 psiInner fillet weld in shear: 0.49*17,100.00 = 8,379.00 psi


(1) Inner fillet weld in shear(π/2)*Nozzle OD*Leg*Si = (π/2)*4.5*0.375*8,379.00 = 22,210.37 lbf


(4) Groove weld in tension(π/2)*Nozzle OD*tw*Sg = (π/2)*4.5*0.25*14,800.00 = 26,153.76 lbf


W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (1.658127 - 1.0734 + 2*0.337*0.855*(1*0.5 - 1*0.29922))*20,000.00= 14,008.62 lbf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (0.4652 + 0 + 0.1202 + 0)*20,000.00= 11,708.00 lbf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (0.4652 + 0 + 0.1202 + 0 + 2*0.337*0.5*0.855)*20,000.00= 17,470.70 lbf


Path 1-1 through (1) & (3) = 22,210.37 + 26,378.52 = 48,588.89 lbf



Path 2-2 through (1), (4) = 22,210.37 + 26,153.76 = 48,364.13 lbf



Nozzle #3 (N3)





Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

1.6581 1.6588 1.0734 0.4652 -- -- 0.1202 0.2074 0.2949


Weld loadW

Weld loadW1-1

Path 1-1strength

Weld loadW2-2

Path 2-2strength

14,008.62 11,708.00 48,588.89 17,470.70 48,364.13




Status









= 125.3767*1.913/(17,100.00*1 - 0.6*125.3767)= 0.0141 in


Nozzle #3 (N3)


tr = P*Do*K / (2*S*E + 2*P*(K - 0.1))

= 125.3767*96*1 / (2*20000*1 + 2*125.3767*(1 - 0.1)) = 0.2992"





A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 5.443769*0.29922*1 + 2*0.337*0.29922*1*(1 - 0.855)= 1.6581 in2




= 5.443769*(1*0.5 - 1*0.29922) - 2*0.337*(1*0.5 - 1*0.29922)*(1 - 0.855)= 1.0734 in2


= 2*(0.5 + 0.337)*(1*0.5 - 1*0.29922) - 2*0.337*(1*0.5 - 1*0.29922)*(1 - 0.855)= 0.3165 in2



= 5*(0.337 - 0.0141)*0.855*0.5= 0.6902 in2

= 5*(tn - trn)*fr2*tn= 5*(0.337 - 0.0141)*0.855*0.337= 0.4652 in2

A41 = Leg2*fr2

= 0.3752*0.855 =0.1202 in2


Nozzle #3 (N3)

Area = A1 + A2 + A41

= 1.0734 + 0.4652 + 0.1202= 1.6588 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in




t1 + t2 = 0.5125 >= 1.25*tmin














Groove weld in tension: 0.74*20,000.00 = 14,800.00 psiNozzle wall in shear: 0.7*17,100.00 = 11,970.00 psi


Nozzle #3 (N3)

Inner fillet weld in shear: 0.49*17,100.00 = 8,379.00 psi






W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (1.658127 - 1.0734 + 2*0.337*0.855*(1*0.5 - 1*0.29922))*20,000.00= 14,008.62 lbf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (0.4652 + 0 + 0.1202 + 0)*20,000.00= 11,708.00 lbf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (0.4652 + 0 + 0.1202 + 0 + 2*0.337*0.5*0.855)*20,000.00= 17,470.70 lbf


Path 1-1 through (1) & (3) = 22,210.37 + 26,378.52 = 48,588.89 lbf



Path 2-2 through (1), (4) = 22,210.37 + 26,153.76 = 48,364.13 lbf






Nozzle #3 (N3)

Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

1.1032 1.1033 0.5445 0.4386 -- -- 0.1202 0.0936 0.2949






Status













A = 0.5*(d*tr*F + 2*tn*tr*F*(1 - fr1))

= 0.5*(5.443769*0.39815*1 + 2*0.337*0.39815*1*(1 - 0.855))= 1.1032 in2


Nozzle #3 (N3)




= 5.443769*(1*0.5 - 1*0.39815) - 2*0.337*(1*0.5 - 1*0.39815)*(1 - 0.855)= 0.5445 in2


= 2*(0.5 + 0.337)*(1*0.5 - 1*0.39815) - 2*0.337*(1*0.5 - 1*0.39815)*(1 - 0.855)= 0.1605 in2



= 5*(0.337 - 3.255921E-02)*0.855*0.5= 0.6507 in2

= 5*(tn - trn)*fr2*tn= 5*(0.337 - 3.255921E-02)*0.855*0.337= 0.4386 in2

A41 = Leg2*fr2

= 0.3752*0.855 =0.1202 in2

Area = A1 + A2 + A41

= 0.5445 + 0.4386 + 0.1202= 1.1033 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in




t1 + t2 = 0.5125 >= 1.25*tmin


Nozzle #3 (N3)














L/Do = 12.5589/4.5000 = 2.7909

Do/t = 4.5000/0.032559 = 138.2097



Pa = 4*B/(3*(Do/t))

= 4*4049.0488/(3*(4.5000/0.032559))

= 39.0619 psi


= t + Corrosion = 0.032559 + 0.0000 = 0.0326"


Nozzle #4 (N4)

Nozzle #4 (N4)



Leg41 = 0.3750 in


Located on: Ellipsoidal Head #1Liquid static head included: 4.1413 psiNozzle material specification: SA-106 B Smls pipe (ASME II-D p. 10, ln. 15)Nozzle longitudinal joint efficiency: 1.00Nozzle description: 4" Sch 80 (XS)Flange description: 4 inch 150# WN A105Bolt Material: SA-193 B7 Bolt <= 2 1/2Flange rated MDMT: -55.00 °F(UCS-66(b)(1)(b))Liquid static head on flange: 4.0722 psiASME B16.5 flange rating MAWP: 230.00 psi @ 300.00°FASME B16.5 flange rating MAP: 285.00 psi @ 70.00°FASME B16.5 flange hydro test: 450.00 psi @ 70.00°FNozzle orientation: 0 °Calculated as hillside: yes (perpendicular)Local vessel minimum thickness: 0.5000 inNozzle center line offset to datum line: -12.8125 inNozzle inside diameter, new: 3.8260 inNozzle nominal wall thickness: 0.3370 inNozzle corrosion allowance: 0.0000 inOpening chord length: 5.4423 inProjection available outside vessel, Lpr: 8.0918 inDistance to head center, R: 53.0000 in

file:///C|/Codeware/COMPRESS/Temp/CW5F8DA287.html (1 of 12) [9/6/2005 2:13:32 PM]

Nozzle #4 (N4)





Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

1.6574 1.6587 1.0733 0.4652 -- -- 0.1202 0.2074 0.2949


Weld loadW

Weld loadW1-1

Path 1-1strength

Weld loadW2-2

Path 2-2strength

13,996.81 11,708.00 48,588.89 17,470.70 48,364.13




Status










Nozzle #4 (N4)




= 125.3571*1.913/(17,100.00*1 - 0.6*125.3571)= 0.0141 in


tr = P*Do*K / (2*S*E + 2*P*(K - 0.1))

= 125.3571*96*1 / (2*20000*1 + 2*125.3571*(1 - 0.1)) = 0.2992"





A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 5.442292*0.29917*1 + 2*0.337*0.29917*1*(1 - 0.855)= 1.6574 in2




= 5.442292*(1*0.5 - 1*0.29917) - 2*0.337*(1*0.5 - 1*0.29917)*(1 - 0.855)= 1.0733 in2


= 2*(0.5 + 0.337)*(1*0.5 - 1*0.29917) - 2*0.337*(1*0.5 - 1*0.29917)*(1 - 0.855)= 0.3166 in2



= 5*(0.337 - 0.0141)*0.855*0.5= 0.6902 in2


Nozzle #4 (N4)

= 5*(tn - trn)*fr2*tn= 5*(0.337 - 0.0141)*0.855*0.337= 0.4652 in2

A41 = Leg2*fr2

= 0.3752*0.855 =0.1202 in2

Area = A1 + A2 + A41

= 1.0733 + 0.4652 + 0.1202= 1.6587 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in




t1 + t2 = 0.5125 >= 1.25*tmin













Nozzle #4 (N4)



Groove weld in tension: 0.74*20,000.00 = 14,800.00 psiNozzle wall in shear: 0.7*17,100.00 = 11,970.00 psiInner fillet weld in shear: 0.49*17,100.00 = 8,379.00 psi






W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (1.657408 - 1.0733 + 2*0.337*0.855*(1*0.5 - 1*0.29917))*20,000.00= 13,996.81 lbf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (0.4652 + 0 + 0.1202 + 0)*20,000.00= 11,708.00 lbf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (0.4652 + 0 + 0.1202 + 0 + 2*0.337*0.5*0.855)*20,000.00= 17,470.70 lbf


Path 1-1 through (1) & (3) = 22,210.37 + 26,378.52 = 48,588.89 lbf



Path 2-2 through (1), (4) = 22,210.37 + 26,153.76 = 48,364.13 lbf



Nozzle #4 (N4)





Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

1.6577 1.6585 1.0731 0.4652 -- -- 0.1202 0.2074 0.2949


Weld loadW

Weld loadW1-1

Path 1-1strength

Weld loadW2-2

Path 2-2strength

14,005.78 11,708.00 48,588.89 17,470.70 48,364.13




Status









= 125.3767*1.913/(17,100.00*1 - 0.6*125.3767)= 0.0141 in


Nozzle #4 (N4)


tr = P*Do*K / (2*S*E + 2*P*(K - 0.1))

= 125.3767*96*1 / (2*20000*1 + 2*125.3767*(1 - 0.1)) = 0.2992"





A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 5.442292*0.29922*1 + 2*0.337*0.29922*1*(1 - 0.855)= 1.6577 in2




= 5.442292*(1*0.5 - 1*0.29922) - 2*0.337*(1*0.5 - 1*0.29922)*(1 - 0.855)= 1.0731 in2


= 2*(0.5 + 0.337)*(1*0.5 - 1*0.29922) - 2*0.337*(1*0.5 - 1*0.29922)*(1 - 0.855)= 0.3165 in2



= 5*(0.337 - 0.0141)*0.855*0.5= 0.6902 in2

= 5*(tn - trn)*fr2*tn= 5*(0.337 - 0.0141)*0.855*0.337= 0.4652 in2

A41 = Leg2*fr2

= 0.3752*0.855 =0.1202 in2


Nozzle #4 (N4)

Area = A1 + A2 + A41

= 1.0731 + 0.4652 + 0.1202= 1.6585 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in




t1 + t2 = 0.5125 >= 1.25*tmin














Groove weld in tension: 0.74*20,000.00 = 14,800.00 psiNozzle wall in shear: 0.7*17,100.00 = 11,970.00 psi


Nozzle #4 (N4)

Inner fillet weld in shear: 0.49*17,100.00 = 8,379.00 psi






W = (A - A1 + 2*tn*fr1*(E1*t - F*tr))*Sv

= (1.657685 - 1.0731 + 2*0.337*0.855*(1*0.5 - 1*0.29922))*20,000.00= 14,005.78 lbf

W1-1 = (A2 + A5 + A41 + A42)*Sv

= (0.4652 + 0 + 0.1202 + 0)*20,000.00= 11,708.00 lbf

W2-2 = (A2 + A3 + A41 + A43 + 2*tn*t*fr1)*Sv

= (0.4652 + 0 + 0.1202 + 0 + 2*0.337*0.5*0.855)*20,000.00= 17,470.70 lbf


Path 1-1 through (1) & (3) = 22,210.37 + 26,378.52 = 48,588.89 lbf



Path 2-2 through (1), (4) = 22,210.37 + 26,153.76 = 48,364.13 lbf






Nozzle #4 (N4)

Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin

1.1030 1.1030 0.5442 0.4386 -- -- 0.1202 0.0936 0.2949






Status













A = 0.5*(d*tr*F + 2*tn*tr*F*(1 - fr1))

= 0.5*(5.442292*0.39818*1 + 2*0.337*0.39818*1*(1 - 0.855))= 1.1030 in2


Nozzle #4 (N4)




= 5.442292*(1*0.5 - 1*0.39818) - 2*0.337*(1*0.5 - 1*0.39818)*(1 - 0.855)= 0.5442 in2


= 2*(0.5 + 0.337)*(1*0.5 - 1*0.39818) - 2*0.337*(1*0.5 - 1*0.39818)*(1 - 0.855)= 0.1605 in2



= 5*(0.337 - 3.256109E-02)*0.855*0.5= 0.6507 in2

= 5*(tn - trn)*fr2*tn= 5*(0.337 - 3.256109E-02)*0.855*0.337= 0.4386 in2

A41 = Leg2*fr2

= 0.3752*0.855 =0.1202 in2

Area = A1 + A2 + A41

= 0.5442 + 0.4386 + 0.1202= 1.1030 in2


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.375 = 0.2625 in




t1 + t2 = 0.5125 >= 1.25*tmin


Nozzle #4 (N4)














L/Do = 12.5589/4.5000 = 2.7909

Do/t = 4.5000/0.032561 = 138.2018



Pa = 4*B/(3*(Do/t))

= 4*4049.4028/(3*(4.5000/0.032561))

= 39.0676 psi


= t + Corrosion = 0.032561 + 0.0000 = 0.0326"


Nozzle #5 (N5)

Nozzle #5 (N5)



Leg41 = 0.2500 in


Located on: Cylinder #1Liquid static head included: 0.4569 psiNozzle material specification: SA-105 (ASME II-D p. 14, ln. 18)Nozzle longitudinal joint efficiency: 1.00Nozzle description: 1" 3000# - threadedNozzle orientation: 90 °Local vessel minimum thickness: 0.5000 inNozzle center line offset to datum line: 88.0000 inEnd of nozzle to shell center: 52.0000 inNozzle inside diameter, new: 1.3150 inNozzle nominal wall thickness: 0.2175 inNozzle corrosion allowance: 0.0000 inProjection available outside vessel, Lpr: 4.0000 in


The vessel wall thickness governs the MAWP of this nozzle.



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Nozzle #5 (N5)

Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status







Parallel to the vessel wall: (Rn + tn + t )= 1.3750 in




= 209.1599*0.6575/(20,000.00*1 - 0.6*209.1599)= 0.0069 in


tr = P*Ro/(S*E + 0.4*P)

= 209.1599*48/(20,000.00*1 + 0.4*209.1599)= 0.4999 in


Nozzle #5 (N5)






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.315*0.49989*1 + 2*0.2175*0.49989*1*(1 - 1)= 0.6574 in2



= 1.315*(1*0.5 - 1*0.49989) - 2*0.2175*(1*0.5 - 1*0.49989)*(1 - 1)= 0.0001 in2


= 2*(0.5 + 0.2175)*(1*0.5 - 1*0.49989) - 2*0.2175*(1*0.5 - 1*0.49989)*(1 - 1)= 0.0002 in2



= 5*(0.2175 - 0.0069)*1*0.5= 0.5265 in2

= 5*(tn - trn)*fr2*tn= 5*(0.2175 - 0.0069)*1*0.2175= 0.2290 in2

A41 = Leg2*fr2

= 0.252*1 =0.0625 in2

UW-16(d) Weld Check




Nozzle #5 (N5)

t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin


ASME B16.11 Coupling Wall Thickness Check

Wall thickness req'd per ASME B16.11 2.1.1: tr1 = 0.0091 in (E =1)


Available nozzle wall thickness new, tn = 0.2175 in



The vessel wall thickness governs the MAP of this nozzle.



Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status




Nozzle #5 (N5)







= 209.1551*0.6575/(20,000.00*1 - 0.6*209.1551)= 0.0069 in


tr = P*Ro/(S*E + 0.4*P)

= 209.1551*48/(20,000.00*1 + 0.4*209.1551)= 0.4999 in






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.315*0.49988*1 + 2*0.2175*0.49988*1*(1 - 1)= 0.6573 in2



= 1.315*(1*0.5 - 1*0.49988) - 2*0.2175*(1*0.5 - 1*0.49988)*(1 - 1)= 0.0002 in2


Nozzle #5 (N5)


= 2*(0.5 + 0.2175)*(1*0.5 - 1*0.49988) - 2*0.2175*(1*0.5 - 1*0.49988)*(1 - 1)= 0.0002 in2



= 5*(0.2175 - 0.0069)*1*0.5= 0.5265 in2

= 5*(tn - trn)*fr2*tn= 5*(0.2175 - 0.0069)*1*0.2175= 0.2290 in2

A41 = Leg2*fr2

= 0.252*1 =0.0625 in2

UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin









Nozzle #5 (N5)

UG-37 Area Calculation Summary (in2)For Pe = 43.45 psi @ 300.00 °F


Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status










UW-16(d) Weld Check




Nozzle #5 (N5)

t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin













L/Do = 4.0080/1.7500 = 2.2903

Do/t = 1.7500/0.012167 = 143.8263



Pa = 4*B/(3*(Do/t))

= 4*4687.1914/(3*(1.7500/0.012167))

= 43.4523 psi


= t + Corrosion = 0.012167 + 0.0000 = 0.0122"


Nozzle #6 (N6)

Nozzle #6 (N6)



Leg41 = 0.2500 in








Nozzle #6 (N6)

Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status











= 209.1785*0.6575/(20,000.00*1 - 0.6*209.1785)= 0.0069 in


tr = P*Ro/(S*E + 0.4*P)

= 209.1785*48/(20,000.00*1 + 0.4*209.1785)= 0.4999 in


Nozzle #6 (N6)






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.315*0.49994*1 + 2*0.2175*0.49994*1*(1 - 1)= 0.6574 in2



= 1.315*(1*0.5 - 1*0.49994) - 2*0.2175*(1*0.5 - 1*0.49994)*(1 - 1)= 0.0001 in2


= 2*(0.5 + 0.2175)*(1*0.5 - 1*0.49994) - 2*0.2175*(1*0.5 - 1*0.49994)*(1 - 1)= 0.0001 in2



= 5*(0.2175 - 0.0069)*1*0.5= 0.5265 in2

= 5*(tn - trn)*fr2*tn= 5*(0.2175 - 0.0069)*1*0.2175= 0.2290 in2

A41 = Leg2*fr2

= 0.252*1 =0.0625 in2

UW-16(d) Weld Check




Nozzle #6 (N6)

t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin











Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status




Nozzle #6 (N6)







= 209.1551*0.6575/(20,000.00*1 - 0.6*209.1551)= 0.0069 in


tr = P*Ro/(S*E + 0.4*P)

= 209.1551*48/(20,000.00*1 + 0.4*209.1551)= 0.4999 in






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.315*0.49988*1 + 2*0.2175*0.49988*1*(1 - 1)= 0.6573 in2



= 1.315*(1*0.5 - 1*0.49988) - 2*0.2175*(1*0.5 - 1*0.49988)*(1 - 1)= 0.0002 in2


Nozzle #6 (N6)


= 2*(0.5 + 0.2175)*(1*0.5 - 1*0.49988) - 2*0.2175*(1*0.5 - 1*0.49988)*(1 - 1)= 0.0002 in2



= 5*(0.2175 - 0.0069)*1*0.5= 0.5265 in2

= 5*(tn - trn)*fr2*tn= 5*(0.2175 - 0.0069)*1*0.2175= 0.2290 in2

A41 = Leg2*fr2

= 0.252*1 =0.0625 in2

UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin









Nozzle #6 (N6)



Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status










UW-16(d) Weld Check




Nozzle #6 (N6)

t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin













L/Do = 4.0080/1.7500 = 2.2903

Do/t = 1.7500/0.012167 = 143.8263



Pa = 4*B/(3*(Do/t))

= 4*4687.1914/(3*(1.7500/0.012167))

= 43.4523 psi


= t + Corrosion = 0.012167 + 0.0000 = 0.0122"


Nozzle #7 (N7)

Nozzle #7 (N7)



Leg41 = 0.3120 in


Located on: Ellipsoidal Head #2Liquid static head included: 0 psiNozzle material specification: SA-105 (ASME II-D p. 14, ln. 18)Nozzle longitudinal joint efficiency: 1.00Nozzle description: 1.500" 3000# - threadedNozzle orientation: 0 °Calculated as hillside: noLocal vessel minimum thickness: 0.5000 inEnd of nozzle to datum line: 122.5000 inNozzle inside diameter, new: 1.9000 inNozzle nominal wall thickness: 0.3000 inNozzle corrosion allowance: 0.0000 inProjection available outside vessel, Lpr: 4.2582 inDistance to head center, R: 0.0000 in





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Nozzle #7 (N7)

Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status











= 232.5106*0.95/(20,000.00*1 - 0.6*232.5106)= 0.0111 in


tr = P*K1*Do/(2*S*E + 0.8*P)

= 232.5106*0.9*96/(2*20,000.00*1 + 0.8*232.5106)= 0.4999 in


Nozzle #7 (N7)






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.9*0.4999*1 + 2*0.3*0.4999*1*(1 - 1)= 0.9498 in2



= 1.9*(1*0.5 - 1*0.4999) - 2*0.3*(1*0.5 - 1*0.4999)*(1 - 1)= 0.0002 in2


= 2*(0.5 + 0.3)*(1*0.5 - 1*0.4999) - 2*0.3*(1*0.5 - 1*0.4999)*(1 - 1)= 0.0002 in2



= 5*(0.3 - 0.0111)*1*0.5= 0.7223 in2

= 5*(tn - trn)*fr2*tn= 5*(0.3 - 0.0111)*1*0.3= 0.4334 in2

A41 = Leg2*fr2

= 0.3122*1 =0.0973 in2

UW-16(d) Weld Check




Nozzle #7 (N7)

t1(actual) = 0.7*Leg = 0.7*0.312 = 0.2184 in




t1 + t2 = 0.4684 >= 1.25*tmin












Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status


Nozzle #7 (N7)









= 232.5106*0.95/(20,000.00*1 - 0.6*232.5106)= 0.0111 in


tr = P*K1*Do/(2*S*E + 0.8*P)

= 232.5106*0.9*96/(2*20,000.00*1 + 0.8*232.5106)= 0.4999 in






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.9*0.4999*1 + 2*0.3*0.4999*1*(1 - 1)= 0.9498 in2




Nozzle #7 (N7)

= 1.9*(1*0.5 - 1*0.4999) - 2*0.3*(1*0.5 - 1*0.4999)*(1 - 1)= 0.0002 in2


= 2*(0.5 + 0.3)*(1*0.5 - 1*0.4999) - 2*0.3*(1*0.5 - 1*0.4999)*(1 - 1)= 0.0002 in2



= 5*(0.3 - 0.0111)*1*0.5= 0.7223 in2

= 5*(tn - trn)*fr2*tn= 5*(0.3 - 0.0111)*1*0.3= 0.4334 in2

A41 = Leg2*fr2

= 0.3122*1 =0.0973 in2

UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.312 = 0.2184 in




t1 + t2 = 0.4684 >= 1.25*tmin








Nozzle #7 (N7)





Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status











Nozzle #7 (N7)

UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.312 = 0.2184 in




t1 + t2 = 0.4684 >= 1.25*tmin














L/Do = 4.2582/2.5000 = 1.7033

Do/t = 2.5000/0.015217 = 164.2849



Pa = 4*B/(3*(Do/t))

= 4*5353.6895/(3*(2.5000/0.015217))


Nozzle #7 (N7)

= 43.4504 psi


= t + Corrosion = 0.015217 + 0.0000 = 0.0152"


Nozzle #8 (N8)

Nozzle #8 (N8)



Leg41 = 0.3120 in


Located on: Ellipsoidal Head #2Liquid static head included: 0 psiNozzle material specification: SA-105 (ASME II-D p. 14, ln. 18)Nozzle longitudinal joint efficiency: 1.00Nozzle description: 1.500" 3000# - threadedNozzle orientation: 180 °Calculated as hillside: yesLocal vessel minimum thickness: 0.5000 inEnd of nozzle to datum line: 119.5000 inNozzle inside diameter, new: 1.9000 inNozzle nominal wall thickness: 0.3000 inNozzle corrosion allowance: 0.0000 inOpening chord length: 1.9795 inProjection available outside vessel, Lpr: 4.1467 inDistance to head center, R: 24.0000 in



file:///C|/Codeware/COMPRESS/Temp/CW21D40241.html (1 of 9) [9/6/2005 2:13:34 PM]

Nozzle #8 (N8)



Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status











= 232.5106*0.95/(20,000.00*1 - 0.6*232.5106)= 0.0111 in


tr = P*K1*Do/(2*S*E + 0.8*P)


Nozzle #8 (N8)

= 232.5106*0.9*96/(2*20,000.00*1 + 0.8*232.5106)= 0.4999 in






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.9795*0.4999*1 + 2*0.3*0.4999*1*(1 - 1)= 0.9896 in2



= 1.9795*(1*0.5 - 1*0.4999) - 2*0.3*(1*0.5 - 1*0.4999)*(1 - 1)= 0.0002 in2


= 2*(0.5 + 0.3)*(1*0.5 - 1*0.4999) - 2*0.3*(1*0.5 - 1*0.4999)*(1 - 1)= 0.0002 in2



= 5*(0.3 - 0.0111)*1*0.5= 0.7223 in2

= 5*(tn - trn)*fr2*tn= 5*(0.3 - 0.0111)*1*0.3= 0.4334 in2

A41 = Leg2*fr2

= 0.3122*1 =0.0973 in2

UW-16(d) Weld Check


Nozzle #8 (N8)



t1(actual) = 0.7*Leg = 0.7*0.312 = 0.2184 in




t1 + t2 = 0.4684 >= 1.25*tmin












Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin






Nozzle #8 (N8)



Status









= 232.5106*0.95/(20,000.00*1 - 0.6*232.5106)= 0.0111 in


tr = P*K1*Do/(2*S*E + 0.8*P)

= 232.5106*0.9*96/(2*20,000.00*1 + 0.8*232.5106)= 0.4999 in






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.9795*0.4999*1 + 2*0.3*0.4999*1*(1 - 1)= 0.9896 in2



Nozzle #8 (N8)


= 1.9795*(1*0.5 - 1*0.4999) - 2*0.3*(1*0.5 - 1*0.4999)*(1 - 1)= 0.0002 in2


= 2*(0.5 + 0.3)*(1*0.5 - 1*0.4999) - 2*0.3*(1*0.5 - 1*0.4999)*(1 - 1)= 0.0002 in2



= 5*(0.3 - 0.0111)*1*0.5= 0.7223 in2

= 5*(tn - trn)*fr2*tn= 5*(0.3 - 0.0111)*1*0.3= 0.4334 in2

A41 = Leg2*fr2

= 0.3122*1 =0.0973 in2

UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.312 = 0.2184 in




t1 + t2 = 0.4684 >= 1.25*tmin







Nozzle #8 (N8)






Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status










Nozzle #8 (N8)


UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.312 = 0.2184 in




t1 + t2 = 0.4684 >= 1.25*tmin














L/Do = 4.8764/2.5000 = 1.9505

Do/t = 2.5000/0.016247 = 153.8740




Nozzle #8 (N8)

Pa = 4*B/(3*(Do/t))

= 4*5014.5625/(3*(2.5000/0.016247))

= 43.4517 psi


= t + Corrosion = 0.016247 + 0.0000 = 0.0162"


Nozzle #9 (N9)

Nozzle #9 (N9)



Leg41 = 0.2500 in







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Nozzle #9 (N9)

Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status











= 209.1505*0.6575/(20,000.00*1 - 0.6*209.1505)= 0.0069 in


tr = P*Ro/(S*E + 0.4*P)

= 209.1505*48/(20,000.00*1 + 0.4*209.1505)= 0.4999 in


Nozzle #9 (N9)






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.315*0.49987*1 + 2*0.2175*0.49987*1*(1 - 1)= 0.6573 in2



= 1.315*(1*0.5 - 1*0.49987) - 2*0.2175*(1*0.5 - 1*0.49987)*(1 - 1)= 0.0002 in2


= 2*(0.5 + 0.2175)*(1*0.5 - 1*0.49987) - 2*0.2175*(1*0.5 - 1*0.49987)*(1 - 1)= 0.0002 in2



= 5*(0.2175 - 0.0069)*1*0.5= 0.5265 in2

= 5*(tn - trn)*fr2*tn= 5*(0.2175 - 0.0069)*1*0.2175= 0.2290 in2

A41 = Leg2*fr2

= 0.252*1 =0.0625 in2

UW-16(d) Weld Check




Nozzle #9 (N9)

t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin











Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status




Nozzle #9 (N9)







= 209.1551*0.6575/(20,000.00*1 - 0.6*209.1551)= 0.0069 in


tr = P*Ro/(S*E + 0.4*P)

= 209.1551*48/(20,000.00*1 + 0.4*209.1551)= 0.4999 in






A = d*tr*F + 2*tn*tr*F*(1 - fr1)

= 1.315*0.49988*1 + 2*0.2175*0.49988*1*(1 - 1)= 0.6573 in2



= 1.315*(1*0.5 - 1*0.49988) - 2*0.2175*(1*0.5 - 1*0.49988)*(1 - 1)= 0.0002 in2


Nozzle #9 (N9)


= 2*(0.5 + 0.2175)*(1*0.5 - 1*0.49988) - 2*0.2175*(1*0.5 - 1*0.49988)*(1 - 1)= 0.0002 in2



= 5*(0.2175 - 0.0069)*1*0.5= 0.5265 in2

= 5*(tn - trn)*fr2*tn= 5*(0.2175 - 0.0069)*1*0.2175= 0.2290 in2

A41 = Leg2*fr2

= 0.252*1 =0.0625 in2

UW-16(d) Weld Check



t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin









Nozzle #9 (N9)



Arequired

Aavailable

A1 A2 A3 A5Awelds

treq tmin







Status










UW-16(d) Weld Check




Nozzle #9 (N9)

t1(actual) = 0.7*Leg = 0.7*0.25 = 0.175 in




t1 + t2 = 0.362 >= 1.25*tmin













L/Do = 4.0080/1.7500 = 2.2903

Do/t = 1.7500/0.012167 = 143.8263



Pa = 4*B/(3*(Do/t))

= 4*4687.1914/(3*(1.7500/0.012167))

= 43.4523 psi


= t + Corrosion = 0.012167 + 0.0000 = 0.0122"


Legs #1

Legs #1

Leg material:Leg description: 5x5x1/2 Equal Angle (Leg in)Number of legs: N = 4Overall length: 56.5000 inBase to girth seam length: 44.5000 inBolt circle: 94.0000 inAnchor bolt size: 1 inch series 8 threadedAnchor bolt material:Anchor bolts/leg: 1

Anchor bolt allowable stress: Sb = 20,000 psi

Anchor bolt corrosion allowance: 0.0000 inAnchor bolt hole clearance: 0.0620 inBase plate width: 9.0000 inBase plate length: 9.0000 in

Base plate thickness: 0.5625 in (0.5368 in required)

Base plate allowable stress: 24,000 psiFoundation allowable bearing stress: 750 psiEffective length coefficient: K = 1.2

Coefficient: Cm = 0.85

Leg yield stress: Fy = 36,000 psi

Leg elastic modulus: E = 29,000,000 psi

Leg to shell fillet weld: 0.2500 in (0.0653 in required)

Legs braced: No

Note: The support attachment point is assumed to be 1 in up from the cylinder circumferential seam.

LoadingForceattackangle °

Legposition °

Axialend load

lbf

Shearresisted

lbf

Axialfapsi

Bendingfbxpsi

Bendingfbypsi

RatioH1-1

RatioH1-2

Weightoperatingcorroded

Moment =13.3 lb-ft

0

0 9,409.1 0.0 1,981 4,645 0 0.2864 0.2872

90 9,410.8 0.0 1,981 4,645 0 0.2864 0.2872

180 9,412.4 0.0 1,982 4,646 0 0.2865 0.2873

270 9,410.8 0.0 1,981 4,645 0 0.2864 0.2872

file:///C|/Codeware/COMPRESS/Temp/CW63797A2B.html (1 of 10) [9/6/2005 2:13:36 PM]

Legs #1


Legposition °

Axialend load

lbf

Shearresisted

lbf

Axialfapsi

Bendingfbxpsi

Bendingfbypsi

RatioH1-1

RatioH1-2

Weightempty

corroded

Moment =13.3 lb-ft

0

0 1,873.0 0.0 394 925 0 0.0552 0.0572

90 1,874.7 0.0 395 925 0 0.0552 0.0572

180 1,876.4 0.0 395 926 0 0.0553 0.0573

270 1,874.7 0.0 395 925 0 0.0552 0.0572


Legposition °

Axialend load

lbf

Shearresisted

lbf

Axialfapsi

Bendingfbxpsi

Bendingfbypsi

RatioH1-1

RatioH1-2

Weightvacuumcorroded

Moment =13.3 lb-ft

0

0 9,409.1 0.0 1,981 4,645 0 0.2864 0.2872

90 9,410.8 0.0 1,981 4,645 0 0.2864 0.2872

180 9,412.4 0.0 1,982 4,646 0 0.2865 0.2873

270 9,410.8 0.0 1,981 4,645 0 0.2864 0.2872


Legposition °

Axialend load (1)

lbf

Shearresisted

lbf

Axialfapsi

Bendingfbxpsi

Bendingfbypsi

RatioH1-1

RatioH1-2

GoverningCondition

Seismicoperatingcorroded

Moment =10,838.0 lb-ft

0

0 9,831.6 250.8 2,070 8,331 0 0.3292 0.3434

90 11,186.3 971.3 2,355 5,522 8,126 0.4880 0.5257

180 12,541.1 250.8 2,640 9,668 0 0.3964 0.4070

270 11,186.3 971.3 2,355 5,522 8,126 0.4880 0.5257

45

0 9,831.6 611.1 2,070 10,844 3,615 0.5030 0.5418

90 9,831.6 611.1 2,070 10,844 3,615 0.5030 0.5418

180 12,541.1 611.1 2,640 12,181 3,615 0.5717 0.6054

270 12,541.1 611.1 2,640 12,181 3,615 0.5717 0.6054

(1) Axial end load includes consideration of seismic vertical acceleration.


Legs #1


Legposition °

Axialend load (1)

lbf

Shearresisted

lbf

Axialfapsi

Bendingfbxpsi

Bendingfbypsi

RatioH1-1

RatioH1-2

Seismicempty

corroded


0

0 1,833.9 50.0 386 1,598 0 0.0607 0.0655

90 2,143.0 193.5 451 1,058 1,619 0.0932 0.1027

180 2,452.1 50.0 516 1,903 0 0.0749 0.0800

270 2,143.0 193.5 451 1,058 1,619 0.0932 0.1027

45

0 1,833.9 121.7 386 2,099 720 0.0945 0.1050

90 1,833.9 121.7 386 2,099 720 0.0945 0.1050

180 2,452.1 121.7 516 2,404 720 0.1087 0.1195

270 2,452.1 121.7 516 2,404 720 0.1087 0.1195



Legposition °

Axialend load (1)

lbf

Shearresisted

lbf

Axialfapsi

Bendingfbxpsi

Bendingfbypsi

RatioH1-1

RatioH1-2

Seismicvacuumcorroded


0

0 9,831.6 250.8 2,070 8,331 0 0.3292 0.3434

90 11,186.3 971.3 2,355 5,522 8,126 0.4880 0.5257

180 12,541.1 250.8 2,640 9,668 0 0.3964 0.4070

270 11,186.3 971.3 2,355 5,522 8,126 0.4880 0.5257

45

0 9,831.6 611.1 2,070 10,844 3,615 0.5030 0.5418

90 9,831.6 611.1 2,070 10,844 3,615 0.5030 0.5418

180 12,541.1 611.1 2,640 12,181 3,615 0.5717 0.6054

270 12,541.1 611.1 2,640 12,181 3,615 0.5717 0.6054


Leg Calculations (AISC manual ninth edition)

Axial end load, P1

P1 = Wt/N + 48*Mt/(N*D) + Vv/N

= 37,287.70/ 4 + 48*10,837.96/( 4*96) + 7,457.54/ 4


Legs #1

= 12,541.0547 lb

Allowable axial compressive stress, Fa (AISC chapter E)

Local buckling check (AISC 5-99)

b/t = (5/0.5) < (76 / Sqr(36)) so Qs = 1

Flexural-torsional buckling (AISC 5-317)

Shear center distance wo = 1.668771

ro2 = wo

2 + (Iz + Iw)/A

= 1.6687712 + (4.638599 + 17.96097)/4.75= 7.542601

Torsional constant J = 0.3958333Shear modulus G = 11,165.00 kips/in2

Fej = G*J / (A*ro2)

= 11,165.00*0.3958333 / (4.75*7.542601)= 123.3549

K*l/rw = 1.2*42.5/1.944545 = 26.22721

Few = π2*E/(Kl/rw)2

= π2*29,000.00/(26.22721)2

= 416.0959

H = 1 - (wo2 / ro

2)

= 1 - (1.6687712 / 7.542601)= 0.6307908

Fe = ((Few + Fej)/(2*H))*(1 - Sqr(1 - (4*Few*Fej*H)/(Few + Fej)2))

= ((416.0959 + 123.3549)/(2*0.6307908))*(1 - Sqr(1 - (4*416.0959*123.3549*0.6307908)/(416.0959 + 123.3549)2))= 109.0541

Equivalent slenderness ratio

Kl/r = π*Sqr(E/Fe)

= π*Sqr(29,000.00/109.0541)= 51.23041


Legs #1

Cc = Sqr(2*π2*E/(Fy*Qs))

= Sqr(2*π2*29,000,000/(36,000.00*1))= 126.0993

K*l/r= 1.2*42.5/0.988204 = 51.60878

Fa = 1.3 * (1 - (Kl/r)2/(2*Cc2))*Fy / (5/3 + 3*(Kl/r)/(8*Cc)-(Kl/r)3/(8*Cc

3))

= 1.3 * (1 - (51.60878)2/(2*126.09932))*36,000.00 / (5/3 + 3*(51.60878)/(8*126.0993)-(51.60878)3/(8*126.09933))= 23,670.26 psi

Allowable axial compression and bending (AISC chapter H)

Note: r is divided by 1.35 - See AISC 6.1.4, pg. 5-314

F'ex = 1.3*12*π2*E/(23*(Kl/r)2)

= 1.3*12*π2*29,000,000/(23*(69.67185)2)= 39,992.61 psi

F'ey = 1.3*12*π2*E/(23*(Kl/r)2)

= 1.3*12*π2*29,000,000/(23*(35.40673)2)= 154,854.1 psi

Fb = 1.3*0.66*Fy

= 30,888.00 psi

Compressive axial stress

fa = P1/A

= 12,541.05/4.75= 2,640.222 psi

Bending stresses

fbx = F*Cos(α)*L/(Ix/Cx) + P1*Ecc/(Ix/Cx)

= 611.0774*Cos(135)*42.5/(4.638599/1.513175) + 12,541.05*1.5132/(4.638599/1.513175)= 12,181.23 psi

fby= F*Sin(α)*L/(Iy/Cy)

= 611.0774*Sin(135)*42.5/(17.96097/3.5355)= 3,614.859 psi


Legs #1

AISC equation H1-1

H1-1 = fa/Fa + Cmx*fbx/((1 - fa/F'ex)*Fbx) + Cmy*fby/((1 - fa/F'

ey)*Fby)

= 2,640.222/23,670.26 + 0.85*12,181.23/((1 - 2,640.222/39,992.61)*30,888.00) + 0.85*3,614.859/((1 - 2,640.222/154,854.1)*30,888.00)= 0.5716505

AISC equation H1-2

H1-2 = fa/(0.6*1.3*Fy) + fbx/Fbx + fby/Fby

= 2,640.222/(0.6*1.3*36,000.00) + 12,181.23/30,888.00 + 3,614.859/30,888.00= 0.6054239

4, 5x5x1/2 Equal Angle legs are adequate.

Anchor bolts - Seismic empty corroded condition governs

Tensile loading per leg (1 bolt per leg)

R = 48*M/(N*BC) - W/N= 48*4,268.145/(4*94) - 7,498.783/4= -1,329.826 lbf

There is no net uplift (R is negative).

1 inch series 8 threaded bolts are satisfactory.

Check the leg to vessel fillet weld, Bednar 10.3, Seismic operating corroded governs

Note: continuous welding is assumed for all support leg fillet welds.

The following leg attachment weld analysis assumes the fillet weld is present on three sides (leg top closure plate is used).

Zw = (2*b*d + d2)/3

= (2*7.0711*14 + 142)/3= 131.3303

Jw = (b + 2*d)3/12 - d2*(b + d)2/(b + 2*d)

= (7.0711 + 2*14)3/12 - 142*(7.0711 + 14)2/(7.0711 + 2*14)= 1,113.425

E = d2/(b + 2*d)= 142/(7.0711 + 2*14)


Legs #1

= 5.588647

Governing weld load fx = Cos(90)*971.3052 = 0 lbf

Governing weld load fy = Sin(90)*971.3052 = 971.3052 lbf

f1 = P1/Lweld

= 11,186.31/35.0711= 318.9609 lbf/in (VL direct shear)

f2= fy*Lleg*0.5*b/Jw

= 971.3052*42.5*0.5*7.0711/1,113.425= 131.0813 lbf/in (VL torsion shear)

f3 = fy/Lweld

= 971.3052/35.0711= 27.69532 lbf/in (Vc direct shear)

f4 = fy*Lleg*E/Jw

= 971.3052*42.5*5.588647/1,113.425= 207.2003 lbf/in (Vc torsion shear)

f5 = fx*Lleg/Zw

= 0*42.5/131.3303= 0 lbf/in (ML bending)

f6 = fx/Lweld

= 0/35.0711= 0 lbf/in (Direct outward radial shear)

f = Sqr((f1 + f2)2 + (f3 + f4)2 + (f5 + f6)2)

= Sqr((318.9609 + 131.0813)2 + (27.69532 + 207.2003)2 + (0 + 0)2)= 507.6553 lbf/in (Resultant shear load)

Required leg to vessel fillet weld leg size (welded both sides + top)

tw = f / (0.707*0.55*Sa)

= 507.6553 / (0.707*0.55*20,000.00)= 0.0653 in

The 0.2500 in leg to vessel attachment fillet weld size is adequate.

Base plate thickness check, AISC 3-106


Legs #1

fp = P/(B*N)

= 13,832.29/(9*9)= 170.769 psi

Required base plate thickness is the largest of the following: (0.5368 in)

tb = Sqr(0.5*P/Sb)

= Sqr(0.5*13,832.29/24,000.00)= 0.5368 in

tb = 0.5*(N - d)*Sqr(3*fp/Sb)

= 0.5*(9 - 5)*Sqr(3*170.769/24,000.00)= 0.2922 in

The base plate thickness is adequate.

Check the leg to vessel attachment stresses, WRC-107 (Seismic operating corroded governs)

Applied Loads

Radial load: Pr = -432.10 lbf

Circumferential moment: Mc = 0.00 lbf-in

Circumferential shear: Vc = 0.00 lbf

Longitudinal moment: ML = 37,341.24 lbf-in

Longitudinal shear: VL = 12,541.05 lbf

Torsion moment: Mt = 0.00 lbf-in

Internal pressure: P = 128.610 psi

Mean shell radius: Rm = 47.7500 in

Local shell thickness: t = 0.5000 in

Shell yield stress: Sy = 33,600.00 psi

Maximum stresses due to the applied loads at the leg edge (includes pressure)

Rm/t =95.5

C1 = 3.5356, C2 = 11.1118 in


Legs #1

Local circumferential pressure stress = P*Ri/t = 12,218.00 psi

Local longitudinal pressure stress = P*Ri/2t = 6,109.00 psi

Maximum combined stress (PL+Pb+Q) = 17,579.00 psiAllowable combined stress (PL+Pb+Q) = +-3*S = +-60,000.00 psi

The maximum combined stress (PL+Pb+Q) is within allowable limits.

Maximum local primary membrane stress (PL) = 13,624.00 psiAllowable local primary membrane (PL) = +-1.5*S = +-30,000.00 psi

The maximum local primary membrane stress (PL) is within allowable limits.

Stresses at the leg edge per WRC Bulletin 107

Figure value β Au Al Bu Bl Cu Cl Du Dl

3C* 5.6632 0.1885 0 0 0 0 102 102 102 102

4C* 12.3702 0.1551 224 224 224 224 0 0 0 0

1C 0.0793 0.1169 0 0 0 0 822 -822 822 -822

2C-1 0.0469 0.1169 486 -486 486 -486 0 0 0 0

3A* 3.7374 0.1085 0 0 0 0 0 0 0 0

1A 0.0772 0.1229 0 0 0 0 0 0 0 0

3B* 8.8914 0.1589 -1,182 -1,182 1,182 1,182 0 0 0 0

1B-1 0.0249 0.1347 -3,469 3,469 3,469 -3,469 0 0 0 0

Pressure stress* 12,218 12,218 12,218 12,218 12,218 12,218 12,218 12,218

Total circumferential stress 8,277 14,243 17,579 9,669 13,142 11,498 13,142 11,498

Primary membrane circumferential stress* 11,260 11,260 13,624 13,624 12,320 12,320 12,320 12,320

3C* 7.2767 0.1551 132 132 132 132 0 0 0 0

4C* 11.0818 0.1885 0 0 0 0 201 201 201 201

1C-1 0.0560 0.1611 581 -581 581 -581 0 0 0 0

2C 0.0363 0.1611 0 0 0 0 376 -376 376 -376

4A* 6.4403 0.1085 0 0 0 0 0 0 0 0

2A 0.0325 0.1530 0 0 0 0 0 0 0 0

4B* 3.7489 0.1589 -842 -842 842 842 0 0 0 0


Legs #1

2B-1 0.0235 0.1753 -2,516 2,516 2,516 -2,516 0 0 0 0

Pressure stress* 6,109 6,109 6,109 6,109 6,109 6,109 6,109 6,109

Total longitudinal stress 3,464 7,334 10,180 3,986 6,686 5,934 6,686 5,934

Primary membrane longitudinal stress* 5,399 5,399 7,083 7,083 6,310 6,310 6,310 6,310

Shear from Mt 0 0 0 0 0 0 0 0

Circ shear from Vc 0 0 0 0 0 0 0 0

Long shear from VL 0 0 0 0 -564 -564 564 564

Total Shear stress 0 0 0 0 -564 -564 564 564

Combined stress (PL+Pb+Q) 8,277 14,243 17,579 9,669 13,191 11,555 13,191 11,555

Note: * denotes primary stress.


Seismic Code

Seismic Code

Method of seismic analysis: UBC 1997 ground supported

Seismic Zone: 1

Seismic Zone Factor (Table 16-I): Z = 0.0750

R Factor (Table 16-P): R = 2.2000

Soil profile: (Table 16-Q): SB

Importance Factor: I = 1.0000

Vertical Accelerations Considered: Yes

Force Multiplier: = 0.3333

Minimum Weight Multiplier: = 0.2000

Vessel Characteristics

Vessel height: 13.5625 ft

Vessel Weight:

Operating, Corroded: 37643.6836 lb

Empty, Corroded: 7498.7842 lb

Vacuum, Corroded: 37643.6836 lb

Period of Vibration Calculation

The fundamental period of vibration T (above) is calculated using the Rayleigh method of approximation:

T = 2 * PI * Sqr( {Sum(Wi * yi2 )} / {g * Sum(Wi * yi )} ), where

Wi is the weight of the ith lumped mass, and

yi is its deflection when the system is treated as a cantilever beam.

Fundamental Period, T:

Operating, Corroded: 0.2924 sec (f = 3.4198 Hz)

Empty, Corroded: 0.1281 sec (f = 7.8050 Hz)

Vacuum, Corroded: 0.2924 sec (f = 3.4198 Hz)

Seismic Shear Reports:

Operating, Corroded

file:///C|/Codeware/COMPRESS/Temp/CW36A76DAA.html (1 of 4) [9/6/2005 2:13:36 PM]

Seismic Code

Empty, CorrodedVacuum, Corroded

Base Shear Calculations

Seismic Shear Report: Operating, Corroded

Component Elevation of bottom

above base (in) Elastic modulus E(106 psi)

Inertia I(ft4)

Seismic shear atBottom (lbf)

Bending Moment atBottom (lbf-ft)

Ellipsoidal Head #2 136.50 28.3 * 381.08 385.25

Cylinder #1 (top) 44.50 28.3 8.2476 2,174.08 11,227.06

Legs #1 0.00 29.0 0.0022 2,444.36 19,891.70

Cylinder #1 (bottom) 44.50 28.3 8.2476 264.48 389.09


*Moment of Inertia I varies over the length of the component

Seismic Shear Report: Empty, Corroded



Inertia I(ft4)




Cylinder #1 (top) 44.50 29.4 8.2476 413.32 2,680.24

Legs #1 0.00 29.0 0.0022 486.93 4,268.15

Cylinder #1 (bottom) 44.50 29.4 8.2476 68.06 207.51



Seismic Shear Report: Vacuum, Corroded



Inertia I(ft4)




Cylinder #1 (top) 44.50 28.3 8.2476 2,174.08 11,227.06


Seismic Code

Legs #1 0.00 29.0 0.0022 2,444.36 19,891.70

Cylinder #1 (bottom) 44.50 28.3 8.2476 264.48 389.09



Base Shear Calculations

Operating, CorrodedEmpty, CorrodedVacuum, Corroded

Base Shear Calculations: Operating, Corroded

Period Determination

Ta = Ct * hn3/4 = 0.02 * (13.5625)3/4 = 0.1413

Cu = 1.4000

The fundamental period T is the lesser of 0.2924 and the value computed below: (0.1979)

Cu * Ta = 1.4000 * 0.1413 = 0.1979

Calculation of Seismic Response Coefficient

V(30-4) = Cv * I * W / (R * T) = 0.0800 * 1.0000 * 37643.6836 / (2.2000 * 0.1979) = 6917.4585

V(30-5) = 2.50 * Ca * I * W / R = 2.50 * 0.0800 * 1.0000 * 37643.6836 / 2.2000 = 3422.1528

V(34-2) = 0.56 * Ca * I * W = 0.56 * 0.0800 * 1.0000 * 37643.6836 = 1686.4370Take the lesser of V(30-4) and V(30-5), and then the greater of this result and V(34-2).Divide this result by 1.4, giving V = 2444.3950 lb

Base Shear Calculations: Empty, Corroded


Ta = Ct * hn3/4 = 0.02 * (13.5625)3/4 = 0.1413

Cu = 1.4000


Cu * Ta = 1.4000 * 0.1413 = 0.1979


Seismic Code


V(30-4) = Cv * I * W / (R * T) = 0.0800 * 1.0000 * 7498.7842 / (2.2000 * 0.1281) = 2128.2896

V(30-5) = 2.50 * Ca * I * W / R = 2.50 * 0.0800 * 1.0000 * 7498.7842 / 2.2000 = 681.7076


Base Shear Calculations: Vacuum, Corroded


Ta = Ct * hn3/4 = 0.02 * (13.5625)3/4 = 0.1413

Cu = 1.4000


Cu * Ta = 1.4000 * 0.1413 = 0.1979


V(30-4) = Cv * I * W / (R * T) = 0.0800 * 1.0000 * 37643.6836 / (2.2000 * 0.1979) = 6917.4585

V(30-5) = 2.50 * Ca * I * W / R = 2.50 * 0.0800 * 1.0000 * 37643.6836 / 2.2000 = 3422.1528





Location from datum 100.0000"

Operating Liquid Specific Gravity 1.0000

Test liquid specific gravity 1.0000

file:///C|/Codeware/COMPRESS/Temp/CW2A2DDB49.html [9/6/2005 2:13:37 PM]

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