An conference room is to be maintained at 21oC dry-bulb temperature, 50% saturation in winter.
The sensible heat loss for the room is 17.0 kW.
The latent heat gain is 40 Watts per person (see Air Conditioning section).
Determine the preheater and reheater outputs required and the amount of moisture to be added at the humidifier in litre/hour, by using a psychrometric chart if the plant schematic is as shown below.