Air-To-Air Energy Recovery PDF

Indoor air quality, ventilation airflow rates and HVAC capital and oper- ating costs usually are closely related. Auxiliary energy loads for supply air heating or cooling sometimes can substantially reduce the need for dehumidifying or humidifying by using air-to-air heat or energy exchangers. The most important factors in reducing HVAC capital and operating costs are ventilation airflow requirements, climatic parameters, exchanger recov- ery system performance factors and duration of operation.