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Absorption type heat pump system corresponding to natural heat source.

[In Japanese. / En japonais.]

Author(s) : KOJIMA H., TANAKA T.

Type of article: Article

Summary

An absorption heat-pump system which recovers heat efficiently from a low temperature heat source such as river water is a combination of two cycles using different working fluids. This absorption heat pump system called a dual loop cycle is able to recover heat from low temperature level heat sources such as water up to 5°C. In the paper, dual cycle optimization and selection of new working fluids are discussed. The combination of TFE/NMP working fluids for low temperature range and water/lithium bromide for a high temperature range result in a high COP that is 1.3 in cooling and 1.4 in heating. Technology which has been developed in this research will be applied for district heating/cooling, air conditioning and cold storage/refrigerated warehouse systems.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2000-0173
  • Languages: Japanese
  • Source: Refrigeration - vol. 74 - n. 855
  • Publication date: 1999/01
  • Document available for consultation in the library of the IIR headquarters only.

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