A room in the summer is to be maintained at 20°C, 50% RH when the outside...

A room in the summer is to be maintained at 20°C, 50% RH when the outside conditions are 35°C, 80% saturation. The sensible and latent heat gains are 5.5 kW and 1.4 kW respectively. The conditioned air is supplied through ducks from a central station consisting of a cooler battery, a reheat battery, and a fan. Fresh air is supplied to a mixing unit where it mixes with a certain percentage of air recirculated from the room, the remainder of the room air being expelled to atmosphere. The air entering the room is at 13°C, the air temperature rise in the fan and duck work is 1°C, the air leaving the cooler battery and entering the reheat battery is at 8°C, and the apparatus dew point of the cooler is 2°C. Calculate (a) the cooler battery load in kW, (b) the reheater battery load in kW, (c) the cooler battery bypass factor.

Expert Solution

samet mamat answered 2 years ago

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