Heat transfer coefficient for boiling carbon dioxide.

Hans Jørgen Høgaard Knudsen, Per Henrik Jensen

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

    Abstract

    Heat transfer coefficient and pressure drop for boiling carbon dioxide (R744) flowing in a horizontal pipe has been measured. The calculated heat transfer coeeficient has been compared with the Chart correlation of Shah. The Chart Correlation predits too low heat transfer coefficient but the ratio between the measured and the calculated heat transfer coefficient is nearly constant and equal 1.9. With this factor the correlation predicts the measured data within 14% (RMS). The pressure drop is of the same order as the measuring uncertainty and the pressure drop has not been compared with correlation's.
    Original languageEnglish
    Title of host publicationCompression System with Natural Working Fluids
    Place of PublicationSittard, Netherlands
    PublisherIEA Heat Pump Centre
    Publication date1998
    Pages319-328
    Publication statusPublished - 1998
    EventIEA Heat Pump Center/IIR Workshop on: Co2 technology in Refrigeration, Heat Pump & Air Conditioning Systems - Trondheim, Norway
    Duration: 1 Jan 1997 → …

    Conference

    ConferenceIEA Heat Pump Center/IIR Workshop on: Co2 technology in Refrigeration, Heat Pump & Air Conditioning Systems
    CityTrondheim, Norway
    Period01/01/1997 → …

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