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Analysis of ground and air source heat pumps using R407C and R410A refrigerants.

Number: pap. ID: 835

Author(s) : WINANDY E., HUNDY G.

Summary

This theoretical study based on actual compressor performance and backed up by experimental evidence shows how condensing temperature can be minimised and evaporating temperature maximised by circuit design and control. The effect of temperature glide in the heat exchangers can be used to good effect with R407C and use of a suction/liquid line heat exchanger can improve evaporator utilisation. With R410A, temperature differences are limited by other factors and compressor efficiency is better. Seasonal analysis for space heating, both for underfloor and radiator, with and without domestic hot water load using the latest vapour injection scroll technology indicates where R410A shows advantages over R407C.

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Pages: 8 p.

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Details

  • Original title: Analysis of ground and air source heat pumps using R407C and R410A refrigerants.
  • Record ID : 30001822
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

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