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Heat rejection alternatives for refrigeration systems.

Author(s) : WELCH T.

Type of article: Article, Case study

Summary

Heat rejection from refrigeration plants is traditionally through ambient air or water/ambient air, i.e. using air-cooled condensers, or water-cooled condensers coupled to dry coolers or cooling towers. The efficiency of the refrigeration plant is mainly a function of the ambient temperature - the higher the ambient temperature, the lower the efficiency. Unfortunately, this means that when maximum cooling is required, the refrigeration plant is operating at minimum efficiency. This article considers alternative sources for heat rejection and the possibility of utilizing these heat sources when refrigeration systems operate in a heating/heat pump mode, which will result in higher efficiency. The author describes the application of a new VRF system that can make use of this innovative technology in the present climate of working towards a reduction in the energy consumption of buildings.

Details

  • Original title: Heat rejection alternatives for refrigeration systems.
  • Record ID : 2004-1916
  • Languages: English
  • Source: Build. Serv. J. - vol. 25 - n. 11
  • Publication date: 2003/11
  • Document available for consultation in the library of the IIR headquarters only.

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