The HVAC system for a small commercial office building is be

The HVAC system for a small commercial office building is being designed. The building can be considered as one zone. 20 cfm of outdoor fresh air per person are ventilated. The air leaving the cooling coil has dry and wet-bulb temperature of 50 F and 48 F, respectively. The system is designed so that reheating is not needed. Given the following: Estimate the annual cost of the coil and ventilation loads d the electricity charges are $0.12/kWh

Solution

annual cost of the coil = 125*47* (87-76)*2400

                      = 348968