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Influence of refrigerant choice on performance of air-source heat pumps.

Number: pap. 1007

Author(s) : PEARSON S. F.

Summary

Air is the cheapest and most readily available source of heat for heat pumps. This paper shows that air is often neglected as a heat source because of perceptions that air-source heat pumps are less efficient than other types of heat pumps. Calculations are presented to show that in an appropriate location with an appropriate refrigerant, the air-source heat pump can produce SEERs in excess of three. Refrigerants considered include ammonia (R717), Isobutane (R600a), R134a and R410A. It is shown that the most appropriate locations for air-source heat pumps are temperate places at high latitudes where the heating season is long and air temperatures rarely fall below 0°C. The United Kingdom is such a location. A design of air source heat pump capable of operating at very low temperature differences in the evaporator is described.

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Pages: 8 p.

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Details

  • Original title: Influence of refrigerant choice on performance of air-source heat pumps.
  • Record ID : 30019014
  • Languages: English
  • Source: 12th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
  • Publication date: 2016/08/21
  • DOI: http://dx.doi.org/10.18462/iir.gl.2016.1007

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