How To Calculate the Type and Number of Ventilating Fan required?

Example 1

  1. Determine Room Size( Ft³) (A)
    = 8.5 x 26 x 23
    = 5083 ft³
  2. Determine the necessary frequency of ventilation (B)
    Place A b
    Home Kitchen
    Parlour
    Living Room
    15
    6
    6
    Click for more details
  3. Determine Air Flow Required(CFM)
    = (A) x B / 60
    = 5083 x 6 / 60
    = 508.3 CFM(Ft³/Min)
  4. Identify suitable model for application
    Refering to our catalog, 25AQM3 Air volume = 530 CFM

    Therefore, Recommendation is 1 SET OF 25AQM8

 

Example 2

  1. Determine Room Size( Ft³) (A)
    = 13 x 26 x 46
    = 15,548 ft³
  2. Determine the necessary frequency of ventilation (B)
    Place A b
    Factory Painting Room
    Dynamo ROom
    Condenser Room
    20
    20
    15
    Click for more details
  3. Determine Air Flow Required(CFM)
    = (A) x B / 60
    = 15,548 x 20 /60
    = 5182.7 CFM(Ft³/Min)
  4. Identify suitable model for application
    Refering to our catalog, 35GSC Air volume = 1580 CFM
    Number of Ventilating Fans Required
    = Total Air Flow Required /Air Volume of 35GSC
    = 5182.7/1580
    = 3.28

    Therefore, Recommendation is 4 SETS OF 35GSC