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Ventilation Calculation

The document outlines the mechanical ventilation requirements for two areas, B2 and B1, detailing their respective total areas, volumes, air changes per hour, and total flow rates in CFM. For B2, the total flow rate is calculated to be 17549 CFM with one exhaust fan of 18000 CFM capacity, while for B1, the total flow rate is 10952 CFM with one exhaust fan of 10000 CFM capacity. Both fans are fire rated for 2 hours at 300°C.

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129 views1 page

Ventilation Calculation

The document outlines the mechanical ventilation requirements for two areas, B2 and B1, detailing their respective total areas, volumes, air changes per hour, and total flow rates in CFM. For B2, the total flow rate is calculated to be 17549 CFM with one exhaust fan of 18000 CFM capacity, while for B1, the total flow rate is 10952 CFM with one exhaust fan of 10000 CFM capacity. Both fans are fire rated for 2 hours at 300°C.

Uploaded by

mhmd elfkhrny
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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MECHANICAL VENTILATION FOR B2

Total area = 1604 m2


Height of floor = 3.1 m
Volume = 1604*3.1 = 4972 m3
No. of air change per hour = 6 Times
Total flow rate (cfm) = volume * ACH
= 4972 * 6 /1.72 =17549 CFM
➢ Fan selection:
Exhaust Fan Capacity = 18000 CFM fire rated 2hr @ 300c
No. of fans = 1.0 nos. fans

MECHANICAL VENTILATION FOR B1


Total area = 1001 m2
Height of floor = 3.1 m
Volume = 1001*3.1 = 3103 m3
No. of air change per hour = 6 Times
Total flow rate (cfm) = volume * ACH
= 3103 * 6 /1.72 =10952 CFM
➢ Fan selection:
Exhaust Fan Capacity = 10000 CFM fire rated 2hr @ 300c
No. of fans = 1.0 nos. fans

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