2. Consider the designed CAV HVAC system in 1 is operating at part load with ambient

conditions of 86 F dry-bulb and 70 F wet-bulb. The total load is now 350,000 Btu/hr with the

same sensible heat ratio of 0.8 and the same zone temperature of 77 F. The circulation flow rate

is the same as design conditions found in Problem 1 and ventilation flow rate is the same at 1600

cfm. The bypass factor for the coil is 0.175 and the chilled water temperature is 50 F, which is

the same as design conditions.

Use the same method in problem 1 to calculate the zone relative humidity, coil load, and reheat

heat transfer rate. List the results in Table 2.