Evaporative cooling for refrigeration systems: the case for and against.

Author(s) : JAMES R. W., MECH F. I., PRICE A. T., MISSENDEN J. F.

Type of article: Article

Summary

The authors stress the advantages of evaporative condensers as the systems requiring less energy than alternative methods of heat rejection. This is due to the small temperature difference required between condensing refrigerant and wet bulb air. Other systems involve greater total temperature differences. Cooling towers with water-cooled condensers suffer from the temperature range of water through the condenser, and air cooling uses the higher base of dry bulb air temperature. However, capital costs for small plant may lead to lower owning cost with direct air cooling although fan noise is likely to be higher. Examples are quoted. Legionnaires' disease is a further factor to consider although the lower mean temperature of water in a direct evaporative condenser compared to an open cooling tower with water-cooled condenser decreases the risk. All considerations, including unit size and weight are discussed. Environmentally, the evaporative condenser is the best choice. D.W.H.

Details

  • Original title: Evaporative cooling for refrigeration systems: the case for and against.
  • Record ID : 1994-2249
  • Languages: English
  • Source: AIRAH J. - vol. 47 - n. 6
  • Publication date: 1993/06
  • Document available for consultation in the library of the IIR headquarters only.

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