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100℃ Hot Water Supplied by CO2 Transcritical Heat Pump with Optimized Tube-in-tube Heat Exchanger

Number: 0213

Author(s) : HUANG R., HU B., GE T. S., EIKEVIK T. M.

Summary

In the most existing research, 90℃ is the highest temperature of hot water supplied by traditional CO2 heat pump. To enable CO2 transcritical heat pump supply 100℃ pressured hot water, a tube-in-tube heat exchanger is redesigned and optimized in this study. IHX system is adopted to verify the feasibility of CO2 heat pump with an optimized tube-in-tube gas cooler to supply pressured hot water over 100℃. The influence of ambient and inlet water temperature on heating capacity and system performance is studied by both simulation and experiment. Results show that 100℃ hot water is obtained through the redesign of gas cooler under high temperature conditions. With the increase of ambient and inlet water temperature, heating capacity increases and COP has the same variation trend with heating capacity.

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Pages: 20 p.

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Details

  • Original title: 100℃ Hot Water Supplied by CO2 Transcritical Heat Pump with Optimized Tube-in-tube Heat Exchanger
  • Record ID : 30029822
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0213
  • Document available for consultation in the library of the IIR headquarters only.

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