where:
Hs = Sensible heat gain to room (kW)
ma = mass flow rate of air (kg/s)
Cp = Specific heat capacity of humid air (approx.1.01 kJ/kg degC)
tr = room temperature (oC)
ts = supply air temperature (oC)
The supply air temperature is 17oC.
ma = 8 / ( 1.01 ( 22 - 17 ) )
ma = 1.584 kg/s