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Experimental study on heat pump space heating system using R410A and R32 in north of China.

Number: pap. L02

Author(s) : YANG C., ZENG D.

Summary

In the air-source heat pump space heating system, R410A refrigerant has been widely used because of its non-destructive effect to the ozone layer. At the same time, due to the high GWP, R32 is attracting more and more attention as an alternative solution of R410A. In this paper, under the background of the space heating application with these two refrigerants in the low ambient temperature region of North of China (Ambient Temperature Range: -20°C~7°C), the effects of system superheat and discharge temperature control to the seasonal energy efficiency of the system are compared and analyzed. The effects of water outlet temperature (35°C~65°C) to seasonal energy efficiency are studied. At the same time, a comparative study of enhanced vapor injection (EVI) and liquid injection cooling is carried out.

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Pages: 9

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Details

  • Original title: Experimental study on heat pump space heating system using R410A and R32 in north of China.
  • Record ID : 30022141
  • Languages: English
  • Source: 8th international conference on compressors and refrigeration, 2017.
  • Publication date: 2017/07/20

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