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Q8: 100 m' of air at 35°C and 70% relative humidity is cooled to 20° C and 55% relative
humidity by passing it through a cooling coil. Using psychrometric tables only, find: 1. the
amount of water vapor removed in kg /h; and 2. the cooling capacity of the coil in tones of
refrigeration assume specific heat of superheated vapor in air as 1.88 kJ/kg K and R for air =
287.14 kJ/kg K.
[Ans. 144 kg/h. ; 37 TR]

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