calculo de carga termica - chvac

Centro De Computo De UNI-FIMHVAC Load Analysis

for

Facultad De Ingenieria MecanicaUniversidad _Nacional De Ingenieria

Rimac

Prepared By:

IT Ecosystem SACRefrigeracion Y Aire Acondicionado

sbado, 07 de diciembre de 2013

Chvac - Full Commercial HVAC Loads Calculation Program Elite Software Development, Inc.Elite Software Development Centro De Computo De UNI-FIMCollege Station, TX 77845 Page 2

General Project Data Input

General Project InformationProject file name: CCFIM-UNI - MN374-A.CH8Project title: Centro De Computo De UNI-FIMProject date: lunes, 02 de diciembre de 2013Weather reference city: LIMA, PERUClient name: Facultad De Ingenieria MecanicaClient address: Universidad _Nacional De IngenieriaClient city: RimacCompany name: Refrigeracion Y Aire AcondicionadoCompany representative: IT Ecosystem SAC

Barometric pressure: 29.876 in.Hg.Altitude: 42 feetLatitude: -12 DegreesMean daily temperature range: 11.5 DegreesStarting & ending time for HVAC load calculations: 7am - 10pmNumber of unique rooms in this project: 2

Building Default ValuesCalculations performed: Both heating and cooling loadsLighting requirements: 1.00 Watts per square footEquipment requirements: 0.50 Watts per square footPeople sensible load multiplier: 250 Btuh per personPeople latent load multiplier: 200 Btuh per personRoom sensible safety factor: 10 %Room latent safety factor: 10 %Room heating safety factor: 10 %People diversity factor: 90 %Lighting profile number: 0Equipment profile number: 0People profile number: 1Building default ceiling height: 10.00 feetBuilding default wall height: 8.00 feet

Internal Operating Load Profiles (C = 100)hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr hr1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

1 5 5 5 5 5 5 10 C C C C 90 90 90 C C C 70 80 80 80 80 10 102 5 5 5 5 5 5 C C C C C C C C C C C C C C C C 5 53 5 5 5 5 5 5 75 C C C 80 80 80 C C C C 80 80 80 80 30 5 54 5 5 5 5 5 5 5 C C C C C C C C C C C C C C C 5 55 C C C C C C C C C C C C C C C C C C C C C C C C6 C C C C C C C C C C C C C C C C C C C C C C C C7 C C C C C C C C C C C C C C C C C C C C C C C C8 C C C C C C C C C C C C C C C C C C C C C C C C9 C C C C C C C C C C C C C C C C C C C C C C C C

10 C C C C C C C C C C C C C C C C C C C C C C C C

C:\ ...\CCFIM-UNI - MN374-A.CH8 sbado, 07 de diciembre de 2013, 07:38 a.m.


General Project Data Input (cont'd)

Building-Level Design Conditions DesignMonth

OutdoorDry Bulb

OutdoorWet Bulb

IndoorRel.Hum

IndoorDry Bulb

GrainsDiff

In/OutdoorCorrection

February 86 77 75% 75 28.11 -2January 84 74 75% 75 12.76 -4March 85 76 75% 75 23.39 -3Winter 58 75

Master RoofsRoofNo.

ASHRAERoof#

RoofU-Fac

DarkColor

Susp.Ceil

1 3 0.126 Yes YesRoof #1 Description: 8 inch lightweight concrete, 1/2 inch slag, 3/4 inch felt & membrane, dark color, suspended ceiling.2 6 0.146 Yes YesRoof #2 Description: 6" lightweight concrete, 25 lb./sq.ft., dark color with suspended accoustical tile ceiling.

Master WallsWallNo.

ASHRAEGroup

WallU-Fac

WallColor

1 D 0.281 DWall #1 Description: 4 inch face brick, 1 inch air space, 4 inch tile, dark color2 G 1.124 MWall #2 Description: Metal wall, no insulation or finish3 G 0.070 LWall #3 Description: Self-closing double door, metal, heavy construction, light color.

Master PartitionsPartitionNo.

PartitionU-Factor

CoolT-D

HeatT-D

1 0.355 0 0Partition #1 Description: 8 inch concrete block partition wall, adjoining shipping and receiving area

Master GlassGlassNo.

SummerU-Factor

WinterU-Factor

GlassShd.Coef.

InteriorShading

InteriorShd.Coef

1 0.900 0.910 0.700 2 0.000Glass #1 Description: 1/4" single-pane window, low e, heat-absorbing pattern, insulated metal frame, no int shading2 0.470 0.380 0.730 2 0.000Glass #2 Description: 1/4 inch double pane window,1/2 inch air space, heat abs, e=0.4, 4 ft.h x 6 ft. w, no internal shade

Master Shading Devices

ShadeNo.

DistHoriz

OverhProjects

DistBeyond

RightW.Edge

DistBeyond

LeftW.Edge

DistOverhAboveWind

DistRight

FinProj

DistR-Fin

BeyondW.Edge

HtOf

RightFin

DistLeftFin

Proj

DistL-Fin

BeyondW.Edge

HtOf

LeftFin

1 6.00 2.00 2.00 2.00 0.00 0.00 0.00 0.00 0.00 0.00Shading Device #1 Description: Aluminum store-front overhang, 6' projection with 2' extra width on both sides of window



Air Handler Input

Air Handler Number 1 Input Data

Name: Tecer PisoTerminal type: Constant VolumeMethod for CV Sum of PeaksSupply fan type: Draw-thru fanCalculations performed: Both heating and cooling loadsExcess supply air: ReserveOccurrences: 1People profile number: 1Lighting profile number: 0Equipment profile number: 0Exhaust may not exceed supply air: NoLeaving heating coil temp (deg.F): 95.0Leaving cooling coil temp (deg.F): 55.0Cooling coil CFM 0Misc. Btuh gain - supply side: 0Misc. Btuh gain - return side: 0Combined fan & motor efficiency: 65Static pressure across fan (in.wg.): 0.00Summer supply duct temp rise (deg.F): 1.000Summer return duct temp rise (deg.F): 0.750Winter supply duct temp drop (deg.F): 2.000Winter return duct temp drop (deg.F): 1.000Chilled water temp difference (deg.F): 10.000Hot water temp difference (deg.F): 20.000Cooling ventilation: 0.7 DirectCooling infiltration: 0 AC/HrHeating ventilation: 10 CFM/PrHeating infiltration: 0 AC/HrPretreated outside air: nonePretreated air Summer DB (deg.F): 0Pretreated air Summer WB (deg.F): 0Pretreated air Winter DB (deg.F): 0 DesignMonth

OutdoorDry Bulb

OutdoorWet Bulb

IndoorRel.Hum

IndoorDry Bulb

GrainsDiff

In/OutdoorCorrection

February 86 77 75% 75 28.11 -2January 84 74 75% 75 12.76 -4March 85 76 75% 75 23.39 -3Winter 58 75



Room Input

Room 1: Aula A (391.6 sq.ft) (Zone 1)

Air Handler number: 1 Room occurrences: 1Room length: (feet) 22.00 Room width (feet): 17.80Lighting Watts: 20 Equipment Watts: 196Number of people in room: 15 People profile number: 1Lighting profile number: 0 Equipment profile number: 0Ceiling height (feet): 9.50 Heating safety factor (%): 10Sensible safety factor (%): 10 Latent safety factor (%): 10Sensible heat per person (Btuh): 250 Latent heat per person (Btuh): 200Cooling ventilation method: Direct Cooling ventilation value: 0.700Cooling infiltration method: AC/Hr Cooling infiltration value: 0.000Heating ventilation method: CFM/Pr Heating ventilation value: 10.000Heating infiltration method: AC/Hr Heating infiltration value: 0.000Winter exhaust air CFM: 0 Summer exhaust air CFM: 0Minimum supply CFM: 0 Latent Btuh equipment load: 0Ceil. exposed to plenum (sq.ft): 392 Exposed floor slab perimeter (ft): 0Both heating and cooling loads are calculated for this room. Roof Type ASHRAE# U-Factor Dark Length Width Area Susp.Ceil

1 1 3 0.126 Yes 22.00 17.80 391.6 Yes Part Type U-Factor Cool TD Heat TD Height Width Area

3 1 0.355 0.000 0.000 8.00 22.00 176.0 Wall Type ASHRAE# U-Factor Color Height Width Area Direction

1 1 D 0.281 D 8.00 22.00 176.0 NW2 1 D 0.281 D 8.00 17.80 142.4 SE

Room 2: Aula B (391.6 sq.ft) (Zone 1)

Air Handler number: 1 Room occurrences: 1Room length: (feet) 22.00 Room width (feet): 17.80Lighting Watts: 17 Equipment Watts: 196Number of people in room: 15 People profile number: 1Lighting profile number: 0 Equipment profile number: 0Ceiling height (feet): 9.50 Heating safety factor (%): 10Sensible safety factor (%): 10 Latent safety factor (%): 10Sensible heat per person (Btuh): 250 Latent heat per person (Btuh): 200Cooling ventilation method: Direct Cooling ventilation value: 0.700Cooling infiltration method: AC/Hr Cooling infiltration value: 0.000Heating ventilation method: CFM/Pr Heating ventilation value: 10.000Heating infiltration method: AC/Hr Heating infiltration value: 0.000Winter exhaust air CFM: 0 Summer exhaust air CFM: 0Minimum supply CFM: 0 Latent Btuh equipment load: 0Ceil. exposed to plenum (sq.ft): 392 Exposed floor slab perimeter (ft): 0Both heating and cooling loads are calculated for this room. Roof Type ASHRAE# U-Factor Dark Length Width Area Susp.Ceil

1 1 3 0.126 Yes 22.00 17.80 391.6 Yes Wall Type ASHRAE# U-Factor Color Height Width Area Direction

1 1 D 0.281 D 8.00 22.00 176.0 NW2 1 D 0.281 D 8.00 17.80 142.4 SW3 1 D 0.281 D 8.00 22.00 176.0 SE



Plenum Input

Plenum Number 1 Input Data

Air Handler Number: 1Plenum active: NoPercent of light load to rooms: 100Floor u-factor (Btuh/Sq.ft-F): 0.000Watts of equipment: 0Summer plenum-room temp. difference (deg.F): 0Winter plenum-room temp. difference (deg.F): 0



Building Summary Loads Building peaks in February at 5pm.

Bldg LoadDescriptions

AreaQuan

SenLoss

%TotLoss

LatGain

SenGain

NetGain

%NetGain

Roof 783 1,845 14.60 0 6,812 6,812 20.46Wall 813 4,271 33.80 0 5,288 5,288 15.88Glass 0 0 0.00 0 0 0 0.00Floor Slab 0 0 0.00 0 0 0 0.00

Skin Loads 6,116 48.41 0 12,100 12,100 36.34

Lighting 37 0 0.00 0 139 139 0.42Equipment 392 0 0.00 0 1,470 1,470 4.41Pool Latent 0 0 0.00 0 0 0 0.00People 27 0 0.00 5,940 7,425 13,365 40.14Partition 176 0 0.00 0 0 0 0.00Cool. Pret. 0 0 0.00 0 0 0 0.00Heat. Pret. 0 0 0.00 0 0 0 0.00Cool. Vent. 1 0 0.00 14 8 22 0.07Heat. Vent. 300 5,500 43.53 0 0 0 0.00Cool. Infil. 0 0 0.00 0 0 0 0.00Heat. Infil. 0 0 0.00 0 0 0 0.00Draw-Thru Fan 0 0 0.00 0 470 470 1.41Blow-Thru Fan 0 0 0.00 0 0 0 0.00Reserve Cap. 0 0 0.00 0 823 823 2.47Reheat Cap. 0 0 0.00 0 0 0 0.00Supply Duct 0 680 5.38 0 2,803 2,803 8.42Return Duct 0 340 2.69 0 2,102 2,102 6.31Misc. Supply 0 0 0.00 0 0 0 0.00Misc. Return 0 0 0.00 0 0 0 0.00

Building Totals 12,635 100.00 5,954 27,338 33,293 100.00

BuildingSummary

SenLoss

%TotLoss

LatGain

SenGain

NetGain

%NetGain

Ventilation 5,500 43.53 14 8 22 0.07Infiltration 0 0.00 0 0 0 0.00Pretreated Air 0 0.00 0 0 0 0.00Room Loads 6,116 48.41 5,940 21,956 27,896 83.79Plenum Loads 0 0.00 0 0 0 0.00Fan/Duct/Misc Loads 1,019 8.07 0 5,375 5,375 16.14

Building Totals 12,635 100.00 5,954 27,338 33,293 100.00

Check FiguresTotal Building Supply Air (based on a 9 TD): 2,552 CFMTotal Building Vent. Air (0.03% of Supply): 1 CFM

Total Conditioned Air Space: 783 Sq.ftSupply Air Per Unit Area: 3.2587 CFM/Sq.ftArea Per Cooling Capacity: 282.3 Sq.ft/TonCooling Capacity Per Area: 0.0035 Tons/Sq.ftHeating Capacity Per Area: 16.13 Btuh/Sq.ft

Total Heating Required With Outside Air: 12,635 BtuhTotal Cooling Required With Outside Air: 2.77 Tons



Building Summary Loads (Z)Building peaks in February at 5pm.

Bldg LoadDescriptions

AreaQuan

SenLoss

%TotLoss

LatGain

SenGain

NetGain

%NetGain

Roof 783 1,845 14.60 0 6,812 6,812 20.46Wall 813 4,271 33.80 0 5,288 5,288 15.88Glass 0 0 0.00 0 0 0 0.00Floor Slab 0 0 0.00 0 0 0 0.00

Skin Loads 6,116 48.41 0 12,100 12,100 36.34

Lighting 37 0 0.00 0 139 139 0.42Equipment 392 0 0.00 0 1,470 1,470 4.41Pool Latent 0 0 0.00 0 0 0 0.00People 27 0 0.00 5,940 7,425 13,365 40.14Partition 176 0 0.00 0 0 0 0.00Cool. Pret. 0 0 0.00 0 0 0 0.00Heat. Pret. 0 0 0.00 0 0 0 0.00Cool. Vent. 1 0 0.00 14 8 22 0.07Heat. Vent. 300 5,500 43.53 0 0 0 0.00Cool. Infil. 0 0 0.00 0 0 0 0.00Heat. Infil. 0 0 0.00 0 0 0 0.00Draw-Thru Fan 0 0 0.00 0 470 470 1.41Blow-Thru Fan 0 0 0.00 0 0 0 0.00Reserve Cap. 0 0 0.00 0 823 823 2.47Reheat Cap. 0 0 0.00 0 0 0 0.00Supply Duct 0 680 5.38 0 2,803 2,803 8.42Return Duct 0 340 2.69 0 2,102 2,102 6.31Misc. Supply 0 0 0.00 0 0 0 0.00Misc. Return 0 0 0.00 0 0 0 0.00

Building Totals 12,635 100.00 5,954 27,338 33,293 100.00

BuildingSummary

SenLoss

%TotLoss

LatGain

SenGain

NetGain

%NetGain

Ventilation 5,500 43.53 14 8 22 0.07Infiltration 0 0.00 0 0 0 0.00Pretreated Air 0 0.00 0 0 0 0.00Room Loads 6,116 48.41 5,940 21,956 27,896 83.79Plenum Loads 0 0.00 0 0 0 0.00Fan/Duct/Misc Loads 1,019 8.07 0 5,375 5,375 16.14

Building Totals 12,635 100.00 5,954 27,338 33,293 100.00

Check FiguresTotal Building Supply Air (based on a 9 TD): 2,552 CFMTotal Building Vent. Air (0.03% of Supply): 1 CFM





Air Handler #1 - Tecer Piso - Summary Loads

RmNo

DescriptionRoom Peak Time

AreaPeople

Volume

Htg.LossHtg.CFMCFM/Sqft

Sen.GainClg.CFM

CFM/Sqft

Lat.GainS.Exh

W.Exh

Htg.O.A.Req.CFMAct.CFM

Clg.O.A.Req.CFMAct.CFM

1 Aula A5pm February

39215

3,720

2,596134

0.34

10,4991,2203.12

3,30000

10/P150127

Direct00

Runout duct size: 8 in. h x 4in. w, Diffusers: 10, CFM/runout: 122, Velocity: 549.2 ft/min, Pressure drop: 0.111 in.wg./100ft

2 Aula B5pm February

39215

3,720

3,521181

0.46

11,4591,3323.40

3,30000

10/P150173

Direct00


Room Peak Totals:Total Rooms: 2Unique Rooms: 2

78330

7,440

6,116315

0.40

21,9582,5533.26

6,60000

300300

11

Main trunk duct size: 25 in. h x 17in. w, Velocity: 864.8 ft/min, Pressure drop: 0.066 in.wg./100ft



Air Handler #1 - Tecer Piso - Total Load Summary Air Handler Description: Tecer Piso Constant Volume - Sum of PeaksSupply Air Fan: Draw-Thru with program estimated horsepower of 0.19 HPFan Input: 65% motor and fan efficiency with 0 in. water across the fanSensible Heat Ratio: 0.81 --- This system occurs 1 time(s) in the building. ---

Air System Peak Time: 5pm in February. Outdoor Conditions: Clg: 85 DB, 77 WB, 127.85 grains, Htg: 58 DBIndoor Conditions: Clg: 75 DB, 75% RH, Htg: 75 DB

Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air.

Room Space sensible loss: 6,116 BtuhInfiltration sensible loss: 0 Btuh 0 CFMOutside Air sensible loss: 5,500 Btuh 300 CFMSupply Duct sensible loss: 680 BtuhReturn Duct sensible loss: 340 BtuhReturn Plenum sensible loss: 0 BtuhTotal System sensible loss: 12,635 Btuh

Heating Supply Air: 6,796 / (.998 X 1.08 X 20) = 315 CFMWinter Vent Outside Air (95.2% of supply) = 300 CFM

Room space sensible gain: 21,133 BtuhInfiltration sensible gain: 0 BtuhDraw-thru fan sensible gain: 470 BtuhSupply duct sensible gain: 2,803 BtuhReserve sensible gain: 823 BtuhTotal sensible gain on supply side of coil: 25,229 Btuh

Cooling Supply Air: 25,229 / (.998 X 1.1 X 9) = 2,552 CFMSummer Vent Outside Air (0.0% of supply) = 1 CFM

Return duct sensible gain: 2,102 BtuhReturn plenum sensible gain: 0 BtuhOutside air sensible gain: 8 Btuh 1 CFMBlow-thru fan sensible gain: 0 BtuhTotal sensible gain on return side of coil: 2,110 BtuhTotal sensible gain on air handling system: 27,338 Btuh

Room space latent gain: 5,940 BtuhInfiltration latent gain: 0 BtuhOutside air latent gain: 14 BtuhTotal latent gain on air handling system: 5,954 BtuhTotal system sensible and latent gain: 33,293 Btuh

Check FiguresTotal Air Handler Supply Air (based on a 9 TD): 2,552 CFMTotal Air Handler Vent. Air (0.03% of Supply): 1 CFM





Air Handler #1 - Tecer Piso - Summary Loads for Zones (Z)

ZnNo

DescriptionZone Peak Time

AreaPeople

Volume


Sen.GainClg.CFM

CFM/Sqft

Lat.GainS.Exh

W.Exh



1 Zone 15pm February

78330

7,440

6,116315

0.40

21,9582,5533.26

6,60000

n/a300300

n/a11

Runout duct size: 8 in. h x 4in. w, Diffusers: 21, CFM/runout: 122, Velocity: 547.0 ft/min, Pressure drop: 0.110 in.wg./100ftTrunk duct feeding zone: 25 in. h x 17in. w, Velocity: 864.9 ft/min, Pressure drop: 0.067 in.wg./100ft

Zone Peak Totals:Total Zones: 1

78330

7,440

6,116315

0.40

21,9582,5533.26

6,60000

300300

11




Air Handler #1 - Tecer Piso - Summary Loads for Rooms (Z)

RmNo

DescriptionZone Peak Time

AreaPeople

Volume


Sen.GainClg.CFM

CFM/Sqft

Lat.GainS.Exh

W.Exh



1 Aula A5pm February

39215

3,720

2,596134

0.34

10,4991,2203.12

3,30000

10/P150127

Direct00


2 Aula B5pm February

39215

3,720

3,521181

0.46

11,4591,3323.40

3,30000

10/P150173

Direct00


Room Peak Totals:Total Rooms: 2

78330

7,440

6,116315

0.40

21,9582,5533.26

6,60000

300300

11




Air Handler #1 - Tecer Piso - Total Load Summary (Z)Air Handler Description: Tecer Piso Constant Volume - Sum of PeaksSupply Air Fan: Draw-Thru with program estimated horsepower of 0.19 HPFan Input: 65% motor and fan efficiency with 0 in. water across the fanSensible Heat Ratio: 0.81 --- This system occurs 1 time(s) in the building. ---

Air System Peak Time: 5pm in February. Outdoor Conditions: Clg: 85 DB, 77 WB, 127.85 grains, Htg: 58 DBIndoor Conditions: Clg: 75 DB, 75% RH, Htg: 75 DB

Summer: Ventilation controls outside air, ----- Winter: Ventilation controls outside air.

Room Space sensible loss: 6,116 BtuhInfiltration sensible loss: 0 Btuh 0 CFMOutside Air sensible loss: 5,500 Btuh 300 CFMSupply Duct sensible loss: 680 BtuhReturn Duct sensible loss: 340 BtuhReturn Plenum sensible loss: 0 BtuhTotal System sensible loss: 12,635 Btuh

Heating Supply Air: 6,796 / (.998 X 1.08 X 20) = 315 CFMWinter Vent Outside Air (95.2% of supply) = 300 CFM

Room space sensible gain: 21,133 BtuhInfiltration sensible gain: 0 BtuhDraw-thru fan sensible gain: 470 BtuhSupply duct sensible gain: 2,803 BtuhReserve sensible gain: 823 BtuhTotal sensible gain on supply side of coil: 25,229 Btuh

Cooling Supply Air: 25,229 / (.998 X 1.1 X 9) = 2,552 CFMSummer Vent Outside Air (0.0% of supply) = 1 CFM

Return duct sensible gain: 2,102 BtuhReturn plenum sensible gain: 0 BtuhOutside air sensible gain: 8 Btuh 1 CFMBlow-thru fan sensible gain: 0 BtuhTotal sensible gain on return side of coil: 2,110 BtuhTotal sensible gain on air handling system: 27,338 Btuh

Room space latent gain: 5,940 BtuhInfiltration latent gain: 0 BtuhOutside air latent gain: 14 BtuhTotal latent gain on air handling system: 5,954 BtuhTotal system sensible and latent gain: 33,293 Btuh

Check FiguresTotal Air Handler Supply Air (based on a 9 TD): 2,552 CFMTotal Air Handler Vent. Air (0.03% of Supply): 1 CFM





Zone Detailed Loads (At Zone Peak Times)

LoadDescription

UnitQuan

-SC-CFAC

CLTDSHGF

U.Fac-CLF-

Sen.Gain

Lat.Gain

Htg.Mult.

Htg.Loss

Room 1-Aula A - Air Handler 1 (Tecer Piso), Zone 1 peaks (sensible) in February at 5pm.

Roof-1-3-Susp.C-D 392 1.00 62.8 0.126 3,096 2.142 839Wall-1-NW-D-D 176 1 21.3 0.281 1,051 4.777 841Wall-2-SE-D-D 142 1 22.8 0.281 910 4.777 680Partition-3-1 176 0/0 0.355 0 0.000 0Lights-Prof=0 20 1.000 69Equipment-Prof=0 196 1.000 668 0People-Prof=1 15.0 1.000 3,750 3,000

Sub-total 9,545 3,000 2,360Safety factors: +10%

---------+10%

---------+10%

---------Total w/ safety factors: 10,499 3,300 2,596

Room 2-Aula B - Air Handler 1 (Tecer Piso), Zone 1 peaks (sensible) in February at 5pm.

Roof-1-3-Susp.C-D 392 1.00 62.8 0.126 3,096 2.142 839Wall-1-NW-D-D 176 1 21.3 0.281 1,051 4.777 841Wall-2-SW-D-D 142 1 16.8 0.281 670 4.777 680Wall-3-SE-D-D 176 1 22.8 0.281 1,125 4.777 841Lights-Prof=0 17 1.000 57Equipment-Prof=0 196 1.000 668 0People-Prof=1 15.0 1.000 3,750 3,000


---------+10%

---------+10%




Room Detailed Loads (At Room Peak Times)

LoadDescription

UnitQuan

-SC-CFAC

CLTDSHGF

U.Fac-CLF-

Sen.Gain

Lat.Gain

Htg.Mult.

Htg.Loss

Room 1-Aula A peaks (sensible) in February at 5pm, Air Handler 1 (Tecer Piso), Zone 1, 22.0 x 17.8, Construction Type: 8 (Medium)

Roof-1-3-Susp.C-D 392 1.00 62.8 0.126 3,096 2.142 839Wall-1-NW-D-D 176 1 21.3 0.281 1,051 4.777 841Wall-2-SE-D-D 142 1 22.8 0.281 910 4.777 680Partition-3-1 176 0/0 0.355 0 0.000 0Lights-Prof=0 20 1.000 69Equipment-Prof=0 196 1.000 668 0People-Prof=1 15.0 1.000 3,750 3,000


---------+10%

---------+10%


Lighting Cooling Loads

ItemName Quantity

QuantityType

SpecialAllowance

FactorSpace

FractionOccur-rences

UsageFactor

Load(Btuh)

Fluorescent, (1) 18 in., T12 lamp, Mag-Std ballast

15 watts 1.27 1 1 1 65

High Pressure Sodium, (1) 200 W lamp, HID ballast

1 watts 1.25 1 1 1 4

Total 69

Room 2-Aula B peaks (sensible) in February at 5pm, Air Handler 1 (Tecer Piso), Zone 1, 22.0 x 17.8, Construction Type: 6 (Light)

Roof-1-3-Susp.C-D 392 1.00 62.8 0.126 3,096 2.142 839Wall-1-NW-D-D 176 1 21.3 0.281 1,051 4.777 841Wall-2-SW-D-D 142 1 16.8 0.281 670 4.777 680Wall-3-SE-D-D 176 1 22.8 0.281 1,125 4.777 841Lights-Prof=0 17 1.000 57Equipment-Prof=0 196 1.000 668 0People-Prof=1 15.0 1.000 3,750 3,000


---------+10%

---------+10%


Lighting Cooling Loads

ItemName Quantity

QuantityType

SpecialAllowance

FactorSpace


UsageFactor

Load(Btuh)

Fluorescent, (1) 18 in., T12 lamp, Mag-Std ballast

12 watts 1.27 1 1 1 52

High Pressure Sodium, (1) 100 W lamp, HID ballast

1 watts 1.38 1 1 1 5



Room Detailed Loads (At Room Peak Times) (cont'd)

ItemName Quantity

QuantityType

SpecialAllowance

FactorSpace


UsageFactor

Load(Btuh)

Total 57



Air System #1 (Tecer Piso) Psychrometric Analysis

System Load Analysis Latent Grains Sensible Temp CFMLeaving Coil Condition 94.409 66.000Draw-Thru Fan 470 0.168 47Misc Load on Supply Side 0 0.000 0 0.000 0Supply Air Duct 2,803 1.000 284Room Loads 5,940 3.428 21,133 7.539 2,138Sensible Reserve 823 0.294 83

Room Condition 5,940 97.837 25,229 75.000 2,552Return Air Duct 2,102 0.750Return Air Plenum 0 0.000Misc Load on Return Side 0 0.000 0 0.000Vent Air 1 CFM 14 0.008 8 0.003Blow-Thru Fan 0 0.000

Entering Coil Condition 5,954 97.845 27,338 75.753 2,552

General Psychrometric Equations Used In Analysis:PR =(Barometric pressure of site / Standard ASHRAE pressure of 29.921)TSH = PR x 1.10 x CFM x (DB entering - DB leaving)TLH = PR x 0.68 x CFM x (Grains entering - Grains leaving)GTH = PR x 4.50 x CFM x (Enthalpy entering - Enthalpy leaving) TSH = 0.998 x 1.10 x 2,552 x ( 75.8 - 66.0 ) = 27,338 BtuhTLH = 0.998 x 0.68 x 2,552 x ( 97.8 - 94.4 ) = 5,954 Btuh

----------SUM = 33,292 BtuhGTH = 0.998 x 4.50 x 2,552 x ( 33.5 - 30.5 ) = 33,674 BtuhTotal System Load = 33,293 Btuh

Chilled and Hot Water Flow Rates and Steam RequirementCooling GPM = 33,674 / ( 10.00 x 500 ) = 6.7 GPMHeating GPM = 12,635 / ( 20.00 x 500 ) = 1.3 GPMSteam Req. = 12,635 / 970 = 13.0 lb./hr

Entering Cooling Coil Conditions Entering Heating Coil ConditionsDry bulb temperature: 75.75 Dry bulb temperature: 58.77Wet bulb temperature: 69.40Relative humidity: 73.15Enthalpy: 33.48 Btu/lbm

Leaving Cooling Coil Conditions Leaving Heating Coil ConditionsDry bulb temperature: 66.00 Dry bulb temperature: 95.00Wet bulb temperature: 65.68Relative humidity: 98.39Enthalpy: 30.55 Btu/lbm



Air System #1 (Tecer Piso) Psychrometric Analysis (Z)

System Load Analysis Latent Grains Sensible Temp CFMLeaving Coil Condition 94.409 66.000Draw-Thru Fan 470 0.168 47Misc Load on Supply Side 0 0.000 0 0.000 0Supply Air Duct 2,803 1.000 284Room Loads 5,940 3.428 21,133 7.539 2,138Sensible Reserve 823 0.294 83

Room Condition 5,940 97.837 25,229 75.000 2,552Return Air Duct 2,102 0.750Return Air Plenum 0 0.000Misc Load on Return Side 0 0.000 0 0.000Vent Air 1 CFM 14 0.008 8 0.003Blow-Thru Fan 0 0.000

Entering Coil Condition 5,954 97.845 27,338 75.753 2,552

General Psychrometric Equations Used In Analysis:PR =(Barometric pressure of site / Standard ASHRAE pressure of 29.921)TSH = PR x 1.10 x CFM x (DB entering - DB leaving)TLH = PR x 0.68 x CFM x (Grains entering - Grains leaving)GTH = PR x 4.50 x CFM x (Enthalpy entering - Enthalpy leaving) TSH = 0.998 x 1.10 x 2,552 x ( 75.8 - 66.0 ) = 27,338 BtuhTLH = 0.998 x 0.68 x 2,552 x ( 97.8 - 94.4 ) = 5,954 Btuh

----------SUM = 33,292 BtuhGTH = 0.998 x 4.50 x 2,552 x ( 33.5 - 30.5 ) = 33,674 BtuhTotal System Load = 33,293 Btuh

Chilled and Hot Water Flow Rates and Steam RequirementCooling GPM = 33,674 / ( 10.00 x 500 ) = 6.7 GPMHeating GPM = 12,635 / ( 20.00 x 500 ) = 1.3 GPMSteam Req. = 12,635 / 970 = 13.0 lb./hr

Entering Cooling Coil Conditions Entering Heating Coil ConditionsDry bulb temperature: 75.75 Dry bulb temperature: 58.77Wet bulb temperature: 69.40Relative humidity: 73.15Enthalpy: 33.48 Btu/lbm

Leaving Cooling Coil Conditions Leaving Heating Coil ConditionsDry bulb temperature: 66.00 Dry bulb temperature: 95.00Wet bulb temperature: 65.68Relative humidity: 98.39Enthalpy: 30.55 Btu/lbm



Air System #1 (Tecer Piso) Psychrometric Chart RC Room Condition OC Outdoor ConditionLC Leaving Coil Condition EC Entering Coil ConditionSD Supply Duct Temperature Rise RD Return Duct Temperature RiseDTF Draw Through Fan Sensible Gain BTF Blow Through Fan Sensible GainRE Reserve or Reheat Sensible Gain PL Return Air Plenum Sensible GainSM Supply Side Miscellaneous Sensible Gain MR Return Side Miscellaneous GainPRE Pretreated Air Condition HRV Heat Recovery Ventilator ConditionMIX Mixed Air Condition RML Return Miscellaneous Latent Gain



Air System #1 (Tecer Piso) Psychrometric Chart (Z)RC Room Condition OC Outdoor ConditionLC Leaving Coil Condition EC Entering Coil ConditionSD Supply Duct Temperature Rise RD Return Duct Temperature RiseDTF Draw Through Fan Sensible Gain BTF Blow Through Fan Sensible GainRE Reserve or Reheat Sensible Gain PL Return Air Plenum Sensible GainSM Supply Side Miscellaneous Sensible Gain MR Return Side Miscellaneous GainPRE Pretreated Air Condition HRV Heat Recovery Ventilator ConditionMIX Mixed Air Condition RML Return Miscellaneous Latent Gain



Room #1 - Aula A - Pie ChartsRoom #1 peaks in February at 5pm

Room #1 Net Gain

13,799Btuh

Roof - 24.68%

Wall - 15.63%

Lighting - 0.55%Equipment - 5.33%

People - 53.81%

Room #1 Loss 2,596

Btuh

Roof - 35.55%

Wall - 64.45%



Room #2 - Aula B - Pie ChartsRoom #2 peaks in February at 5pm

Room #2 Net Gain

14,759Btuh

Roof - 23.08%

Wall - 21.21%

Lighting - 0.42%Equipment - 4.98%

People - 50.31%

Room #2 Loss 3,521

Btuh

Roof - 26.21%

Wall - 73.79%


calculo de carga termica - chvac

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