SYSTEM STATIC PRESSURE LOSS CALCULATION

Calculations performed by:Calulations performed on:

Drawings to be read in conjunction with these calculations:

Above mentioned drawings based on the following construction drawings:

All calulations and method of calculations are based on CIBSE, publication GUIDE B

EQUIPMENT / PLANT REFERENCE AHU-1

INDEX RUN REFERENCE RUN 1

EQUIPMENT / PLANT DUTY BASED ON RUN 1 0 0 Pa

0 l/s @ 0 Pa

SPECIFIC FAN POWER

0 kW

85%80%

PRESSURE RISE REQUIRED 0 Pa

AIR POWER REQUIRED 0 W

ELECTRICAL AIR POWER REQUIRED 0 kW

SPECIFIC FAN POWER #DIV/0! #DIV/0!

All fitting loss factors etc used within calculations are based on figures and vaules within CIBSE, publication GUIDE C

m3/s @

For Guidance, the limit of 2kW s/m3 will be used here.

SPECIFIC FAN POWER LIMIT (Psf) =

ASSUMED FAN TOTAL EFFICIENCY, (hf) =

FAN MOTOR EFFICIENCY, (hm) =

kW s/m3

SYSTEM DUCT PRESSURE LOSS CALCULATIONSYSTEM REF AHU-1 Air Conditions: Density

r

1.2

Calculations By: Fitting Pressure Losses Based on values obtained from CIBSE Guide CCalculations Based On Drawing(s):Calculations Completed On:

Item Description Air Flow DUCT DIMENSIONS Friction Rate Cat Loss Pressure Loss Factor Velocity Velocity Pressure Section / Item Loss Percent of Total Running Total Comments

q Width Height Area Length g Co z v %

mm mm m Pa/m Pa m/s Pa Pa PaBase

0 Outdoors 0.00Fresh Air Duct to Plant

1 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.0010 0.0011 0.0012 0.0013 0.0014 0.0015 0.0016 0.0017 0.0018 0.0019 0.0020 0.00

Plant21 System Effect - Fan Discharge 0.0022 0.0023 0.0024 0.0025 0.0026 0.0027 0.0028 0.0029 0.0030 0.00

Supply Air Duct31 0.0032 0.0033 0.0034 0.0035 0.0036 0.0037 0.0038 0.0039 0.0040 0.0041 0.0042 0.0043 0.0044 0.0045 0.0046 0.0047 0.0048 0.0049 0.0050 0.0051 0.0052 0.0053 0.0054 0.0055 0.0056 0.0057 0.0058 0.0059 0.0060 0.0061 0.0062 0.0063 0.0064 0.0065 0.0066 0.0067 0.0068 0.0069 0.0070 0.0071 0.0072 0.0073 0.0074 0.0075 0.0076 0.0077 0.0078 0.0079 0.0080 0.0081 0.0082 0.0083 0.0084 0.0085 0.0086 0.0087 0.0088 0.0089 0.0090 0.0091 0.0092 0.0093 0.0094 0.0095 0.0096 0.0097 0.0098 0.0099 0.00

100 0.00101 0.00102 0.00103 0.00104 0.00105 0.00106 0.00107 0.00108 0.00109 0.00110 0.00111 0.00112 0.00113 0.00114 0.00115 0.00116 0.00117 0.00118 0.00119 0.00120 0.00121 0.00122 0.00123 0.00124 0.00125 0.00126 0.00127 0.00128 0.00129 0.00130 0.00131 0.00132 0.00133 0.00134 0.00135 0.00136 0.00137 0.00138 0.00139 0.00140 0.00141 0.00142 0.00143 0.00144 0.00145 0.00146 0.00147 0.00148 0.00149 0.00150 0.00

TOTAL 0.00 Pa

kg/m3

(at 20°C, 43% sat)

Pv DPa DPa

m3/s m2

SYSTEM DUCT INDEX RUN IDENTIFICATIONSYSTEM REF AHU-1 RUN 1 INDEX RUN YES

SYSTEM DUTY AS CALCULATED BELOW 0.000 0 Pa

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Item Description Air Flow DUCT DIMENSIONS Friction Rate Cat Loss Pressure Loss Factor Velocity Velocity Pressure Section / Item Loss Percent of Total Running Total Comments

q Width Height Area Length g Co z v %mm mm m Pa/m Pa m/s Pa Pa Pa

RUN 1

TOTAL 0.00 Pa

m3/s @

Pv DPa DPam3/s m2

SYSTEM DUCT INDEX RUN IDENTIFICATIONSYSTEM REF AHU-1

SYSTEM DUTY AS CALCULATED BELOW 0.000 0 Pa

7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

8 Item Description Air Flow DUCT DIMENSIONS Friction Rate Cat Loss Pressure Loss Factor Velocity Velocity Pressure Section / Item Loss Percent of Total Running Total Comments

9 q Width Height Area Length g Co z v %

10 mm mm m Pa/m Pa m/s Pa Pa Pa11 RUN 112 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 0

TOTAL 0.00 Pa

m3/s @

Pv DPa DPa

m3/s m2

Base

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

INDEX RUN PRESSURE LOSS GRAPH

PRESSURE LOSS GRADIENT

PRES

SURE

DRO

P (P

a)

Base

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

INDEX RUN PRESSURE LOSS GRAPH

PRESSURE LOSS GRADIENT

PRES

SURE

DRO

P (P

a)