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A study on the performance enhancement of heat pump using electric heater under the frosting condition: heat pump under frosting condition.

Author(s) : KWAK K. M., BAI C.

Type of article: Article

Summary

The purpose of this study is to enhance the heating capacity and increase COP under the frosting condition during heating operation of small capacity air-to-air heat pump. We applied an electric heater in front of outdoor unit of heat pump instead of indoor unit as usual. When the outdoor temperature is 2°C/1°C (DB/WB), the present heat pump turns on the electric heater in outdoor unit. The heating capacity increases 38.0% and COP increases 57.0% in comparison with those of conventional heat pump. When the outdoor temperature is 4°C/2°C (DB/WB), the electric heater is in ON/OFF mode according to the temperature of the evaporator. The heating capacity increases 9.1% and COP increases 71.1% in comparison with those of conventional heat pump. [Reprinted with permission from Elsevier. Copyright, 2009].

Details

  • Original title: A study on the performance enhancement of heat pump using electric heater under the frosting condition: heat pump under frosting condition.
  • Record ID : 30001421
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 30 - n. 6-7
  • Publication date: 2010/05
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2009.10.016

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