5.17 A flow of 4000 cfm of air at 53 F and 95% RH enters the reheat coil of a building zone. The zone set temperature is 78 F and the

zone sensible heat ratio (SHR) is 0.8. 1. Determine the maximum sensible and total load that can be met by the air flow and the room RH at the maximum load. 2. Determine the reheat energy that must be supplied to keep the zone at 78 as the sensible load is decreased from the maximum value to zero with the SHR remaining at 0.8. The flow rate, temperature, and humidity of the air supplied to the reheat coil remain the same.