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Research on improving the performance of an air-source heat pump.

[In Chinese. / En chinois.]

Author(s) : ZHEN B., LIU Z. H., WANG Q., et al.

Type of article: Article

Summary

The problems for heat pumps operating at low ambient temperatures were analyzed. A by-pass capillary tube was added on the discharge pipe behind the four-way valve and a tube was added in an accumulator in a heat pump system to solve the problem. The minimum heat transfer area of the tube for subcooling and the optimal length range of the by-pass capillary tube were determined. The experiment results show that heat output of the improved heat pump increased greatly at low ambient temperatures.

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Pages: 12-17

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Details

  • Original title: [In Chinese. / En chinois.]
  • Record ID : 2007-1280
  • Languages: Chinese
  • Source: Journal of Refrigeration - vol. 28 - n. 1
  • Publication date: 2007/02

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