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Performance evaluation of CO2 heat pump heating system.

Author(s) : KUWABARA O., KOBAYASHI M., MUKAIYAMA H., et al.

Summary

Carbon dioxide as the refrigerant is especially suitable for heat pump cycles with high heat rejecting temperature such as heating boilers and water heaters. In Japan, heating is one of the major parts of residential energy consumption, so an efficient heating system could reduce much energy consumption. The authors evaluated the heating capacity and COP of CO2 heat pump heat generator, which is based on a heat pump water heater unit. The average COP of the CO2 heat pump heating system was calculated by using the climate conditions and heating load data. The effect of an additional incoming air heat exchanger was also evaluated, which improved the system COP by lowering the heat-transfer fluid temperature. A CO2 heat pump heating system can reduce the CO2 emission in comparison with an oil boiler.

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Pages: 2006-2

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Details

  • Original title: Performance evaluation of CO2 heat pump heating system.
  • Record ID : 2007-1733
  • Languages: English
  • Subject: Environment
  • Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
  • Publication date: 2006/05/29

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