Supply Air Flow Rate.
Supply Air Flow Rate to a space is based only on the total space sensible heat load, thus
Q = 1.08 x [Hs / (TR - TS)]
Where,
* Q = Air flow in cubic feet per minute (CFM)
* 1.08 = Conversion constant = 0.244 x (60/13.5); 0.244 = Specific heat of moist air, Btu/lb of dry air and 13.5 = Specific Volume of moist air, cubic feet per lb of dry air (@70 0F, 50% RH) and 60 is conversion from hour to minute.
* Hs = Total room sensible heat gain, BTU per hr.
* TR = Room dry bulb temperature, 0F
* TS = Leaving air temperature from the cooling coil in 0F
