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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

AIR FLOW ANALYSIS AROUND AIR-CONDITIONER OUTDOOR UNITS SET ON EACH FLOOR OF A BUILDING

Get access (open in a dialog) DOI: 10.1615/IHTC10.250
pages 339-344

Аннотация

In recent years, outdoor units of air conditioning systems have generally been installed on each floor, especially in high-rise buildings.
When this type of installation configuration is employed, however, short circuit flows occur, whereby the high-temperature exhaust released by an outdoor unit operating as an air conditioner is drawn in by the same outdoor unit or by outdoor units on the floors above. As a result, the temperature of the air taken in by such outdoor units rises and the performance of the air conditioners degrades.
To address this problem, in this paper the authors present the results of an experiment to assess the short circuit flow phenomenon, and introduce numerical simulation techniques developed for the purpose of predicting this phenomenon. Moreover, since the problem of a degradation in air conditioner performance as a result of short circuit flow is more serious in the upper floors of high-rise buildings, the authors discuss the results of applying this numerical simulation technique to a super high-rise building of 30 floors.