Heat pump COP, part 2: Generalized COP estimation of heat pump processes

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    Abstract

    Industrial heat pumps (IHP) are a major contributor in the transformation towards a future energy system based on electrical power. The main barrier for IHP integration is the operating cost and thereby the COP. COP is highly dependent on the temperature difference between the source and sink. Today estimation of expected COP is often done by IHP suppliers and involves choices such as working fluid and compressor technology. By extending the method (of part 1) to include a generic and generalized estimation of COP, the feasibility of integration is elaborated to include real process parameters such as working fluid, compressor and heat exchanger characteristics. The method allows analysis of the credibility of assumptions for heat pump performance and estimated COP improvement from changes of the individual characteristics. For systems with predetermined economic constraints (part 1), the extended model may be used to eliminate combinations of working fluids, compressors and heat exchangers that will not lead to a viable IHP integration.
    Original languageEnglish
    Title of host publicationProceedings of the13th IIR-Gustav Lorentzen Conference on Natural Refrigerants
    Volume2
    PublisherInternational Institute of Refrigeration
    Publication date2018
    Pages1136-1145
    ISBN (Electronic)9781510869615
    DOIs
    Publication statusPublished - 2018
    Event13th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018) - Valencia, Spain
    Duration: 18 Jun 201820 Jun 2018

    Conference

    Conference13th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018)
    Country/TerritorySpain
    CityValencia
    Period18/06/201820/06/2018

    Bibliographical note

    "We have received permission to make the paper available by agreement from the International Institute of Refrigeration (www.iifiir.org), organizer of GL2018 conference."

    Keywords

    • Natural working fluids
    • Process integration
    • Industrial heat pumps
    • Compressor
    • Heat exchanger

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