Theoretical Analysis on a CO2 Heat Pump Driven by Waste Heat

Lisheng Pan*, Brian Elmegaard, Weixiu Shi, Xiaolin Wei

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Heat pumping is a useful technology in supplying high temperature heat for industrial purpose or district heating by using low temperature heat simultaneously. The absorption heat pump is a rather complex system while the vapor-compression heat pump requires power for compressing the working fluid. In addition, high amounts of waste heat, even at high temperature is available in industrial processes. This article analyzed a novel heat-driven high temperature heat pump with CO2 as working fluid and revealed its performance by a theoretical approach. It is driven by cooling a heat source at 300°C, which may be industrial excess heat. The results showed that the heating capacity supplied by the cycle increases with the increase of the cooled pressure while the temperature shows an opposite trend. The maximum coefficient of performance is 1.54 in the considered conditions.
    Original languageEnglish
    Title of host publicationProceedings of 11th International Conference on Applied Energy
    Number of pages5
    Publication date2019
    ISBN (Print)978-91-985634-2-9
    Publication statusPublished - 2019
    EventInternational Conference on Applied Energy 2019 - Mälardalens högskola, Västerås, Sweden
    Duration: 12 Aug 201915 Aug 2019


    ConferenceInternational Conference on Applied Energy 2019
    LocationMälardalens högskola


    • High temperature heat pump
    • Co2
    • Low temperature waste heat
    • District heating


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