Air conditioning systems in the USA (ASHRAE Journal, November, 2001)

Abstract

In recent years, air conditioning systems (VAV systems) with variable supply and exhaust air flow have become widespread in office buildings in the USA. Using a six-story, 17,300 m2 office building in Philadelphia as an example, the capital and operating costs of a VAV system and a system with ceiling chillers and minimum supply air are compared. The calculated air capacity of the VAV system is 265400 m3/h and the cooling consumption is 1780 kWh.

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