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Experimental study on thermal performance of transcritical CO 2 air source heat pump for space heating
Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, China.
Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, China.
Tianjin Key Laboratory of Refrigeration Technology, Tianjin University of Commerce, Tianjin 300134, China.
Foreign Economic Cooperation Office, Ministry of Ecology and Environment, Beijing 100035, China.
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2019 (English)In: Energy Procedia, Elsevier Ltd , 2019, Vol. 158, p. 5913-5919Conference paper, Published paper (Refereed)
Abstract [en]

Employing transcritical CO 2 heat pump system for space heating is an effective way to solve the issue of air pollution during the heating season in China. Thus, an experimental setup is developed to study the thermal performance of the transcritical CO 2 air source heat pump system used for space heating. The test results show that a maximum coefficient of performance (COP) of 2.88 is obtained at the optimum discharge pressure and the ambient temperature of 10 o C. The optimal high pressure is nearly a constant with the value of about 8.5 MPa for the ambient temperature in the range of -15~10 o C. The system COP increases with the ambient temperature increasing, and the outlet temperature of the gas cooler is a dominant influencing factor on the thermal performance of the heat pump system. Little difference can be found between the gas cooler outlet temperatures with the variation in ambient temperatures.

Place, publisher, year, edition, pages
Elsevier Ltd , 2019. Vol. 158, p. 5913-5919
Keywords [en]
Air source, Carbon dioxide, Heat pump, Space heating, Transcritical cycle
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-43143DOI: 10.1016/j.egypro.2019.01.532ISI: 000471031706044Scopus ID: 2-s2.0-85063906642OAI: oai:DiVA.org:mdh-43143DiVA, id: diva2:1305712
Conference
10th International Conference on Applied Energy (ICAE2018), 22-25 August 2018, Hong Kong, China
Available from: 2019-04-18 Created: 2019-04-18 Last updated: 2019-07-11Bibliographically approved

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Li, Hailong

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
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  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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