Discusses the application of variable-air-volume (VAV) heating and ventilating systems to industrial facilities with varying cooling loads. Cooling loads vary with gains and losses through building envelopes, ventilation loads, and internally generated heat. Applications for the methodologies discussed may include manufacturing plants, welding shops, and other types of industrial occupancies with similar characteristics. The limitations of air distribution systems may impose restrictions that prevent operation of the heating and ventilating systems in effective ranges of operation. Conservative recommendations, based on experimental studies performed on physical models under field conditions, are presented for VAV air distribution techniques. Economically appropriate ranges of operation for the application of VAV heating and ventilating systems are defined.

KEYWORDS: variable volume air conditioning, industrial, buildings, heating, ventilation, cooling load, heat gain, heat loss, manufacturing, factories, welding, air distribution, models, operations, energy consumption, energy conservation.