A new energy-efficient air conditioning system in proposed for a computer room with high heat generating equipment where forced air cooling air volume is prescribed. In the proposed air conditioning system, conditioned primary air from the AHU is reduced in accordance with the heat load, while insufficient cooling air volume is compensated by induced secondary room air. Reduction of conditioned air saves fan capacity and consequently improves efficiency of the AHU. This paper describes an on-site survey of a conventional air conditioning system, as well as modeling of air distribution around equipment, and validation of the new air conditioning system based on field experiments.
