How many ventilators are required for a particular application?
To determine the quantity of required ventilators we need to ascertain the following:
a) Volume: Volume of shed to be ventilated.
b) Air changes: Depending on the use of the particular shed to be ventilated choose the “ number of air changes per hour” required. The accompanying table gives guidance to determine number of air changes suitable to your application.
c) CFM of ventilator: Refer table given below.
Type of Building
Air Changes Per Hour
Assembly Hall
6-12
Chemical Plant
30-60
Auditorium
4-12
Laundry
12-30
Bakeries
12-20
Paper Mill
08-30
Boiler Room
15-60
Textile Mill
08-15
Brewery
8-30
Packing Room
Class Room
10-15
Transformer Room
Engine Room
Paint Shop
20-30
Factories (Light)
10-20
Ware House
05-08
Factories (Heavy)
20-40
Foundry
10-30
8Km/Hr
Model
Ventilator Size
Height
Exhaust Capacity
Mukta 24
24 inchs
20 Ft
1972 CFM
30 Ft
2076 CFM
40 Ft
2164 CFM
To Determine Number of Ventilators Required:
{(Volume of shed X No. Of Air Changes) / 60} / Exhaust Capacity of Ventilator.
Volume of Shed = Length X Width X Height Conversions:
1 Ft = 0.3048 Mtrs 1 Mtrs = 3.2808 Ft 1CFT = 0.028317 CUM 1 CUM = 35.315 CFT
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