Development and validation of static simulation model for CO2 heat pump

Seiichi Yamaguchi, Daisuke Kato, Kiyoshi Saito, Sunao Kawai

    Research output: Contribution to journalArticle

    25 Citations (Scopus)

    Abstract

    A simulation model for the CO2 heat pump water heater was developed and validated in this study. Component models of the gas cooler, evaporator, compressor, and expansion valve were constructed with careful consideration for the heat transfer performances. To validate the simulation model, experiments were carried out using an actual CO2 heat pump water heater (water heating capacity: 22.3 kW; hot-water temperature: 90 °C). In simulations and experiments, the effects of the inlet water temperature and outside air temperature on the system characteristics were discussed. As a result, the average difference in COP between the simulation results and experimental results is 1.5%.

    Original languageEnglish
    Pages (from-to)1896-1906
    Number of pages11
    JournalInternational Journal of Heat and Mass Transfer
    Volume54
    Issue number9-10
    DOIs
    Publication statusPublished - 2011 Apr

    Fingerprint

    heat pumps
    Water heaters
    Pumps
    water temperature
    Water
    heaters
    simulation
    water heating
    Evaporators
    inlet temperature
    Temperature
    evaporators
    Compressors
    compressors
    Gases
    Experiments
    coolers
    water
    Heat transfer
    Heating

    Keywords

    • CO
    • Heat pump
    • Simulation
    • Validation
    • Water heater

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Condensed Matter Physics
    • Fluid Flow and Transfer Processes

    Cite this

    Development and validation of static simulation model for CO2 heat pump. / Yamaguchi, Seiichi; Kato, Daisuke; Saito, Kiyoshi; Kawai, Sunao.

    In: International Journal of Heat and Mass Transfer, Vol. 54, No. 9-10, 04.2011, p. 1896-1906.

    Research output: Contribution to journalArticle

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