Sheet1Calculation for Fire Stop Lobby VentilationsFire Stop
Lobby (1)Area=7.02 mHigh=3.5 mVolume=7.02x3.5=24.57 mOne Air Change
15 cfmVentilation Rate Required=15 x 10 ( no. of air change) = 150
cfmFire Stop Lobby (2)Area=7.02 mHight=3.5 mVolume=7.02 x 3.5=24.57
m One Air Change 15 cfmVentilation Rate Required=15 x 10 ( no. of
air change) = 150 cfmCalculation for Fire Pump Room
VentilationVentilation Fans will work at same ACH in case of fire
& normal modewith constant 10 ACHArea=47.5 mHight=3.7
mVolume=47.5 x 3.7=175.75 m One Air Change 70 cfm= 110
CFMVentilation Rate Required:110 x 10 = 1100 CFMCalculation for
Generator Room VentilationArea=91.2 mHight=3.4 mVolume=91.2 x
3.4=310.76 m Ventilation Fans will work at same ACH in case of fire
& normal modewith constant 10 ACHVentilation Rate Required:=V *
35 * ACH / 60=310.76 * 35 * 10 / 60=1812 CFMThe Selected Fan Will
Be=1800 CFMIn Case of Generator WorkOur Generator Capacity 1500
KVA.From Generator Suppliers Generator Requirement asFresh
Air=56000Exhaust Air=50000Exhaust Gases=8250Fresh Air Supplied By
Fresh Air LouverMaximum Speed of Air On Louver Face600 FPMArea of
Fresh Air Louver = CFM * 144 / V56000 * 144 / 600 =13,440 in2Louver
Size =4.00 m X 2.20 m=8.76 m2Area of Exhaust Air Louver = CFM * 144
/ V50000 * 144 / 600 =12,000 in2=7.74 m2Louver Size =7.50 m X 1.00
mCalculation for Fire Command Center VentilationArea=13.95
mHight=5.40 mVolume=13.95 x 5.40=310.76 m Ventilation Fans will
work at same ACH in case of fire & normal modewith constant 10
ACHVentilation Rate Required:=V * 35 * ACH / 60=75.33 * 35 * 10 /
60=440 CFMThe Selected Fan Will Be=440 CFM
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