Heat and mass transfer characteristics of a finned-tube evaporator under frosting conditions

Y. H. Kim, Y. J. Park, Y. C. Kim, S. C. Shim, S. K. Oh, J. S. Lee

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    An experimental study was performed to investigate the heat and mass transfer characteristics of a finned-tube evaporator coil utilized in a domestic refrigerator under frosting conditions. Airside heat transfer coefficient was measured as a function of air temperature, humidity ratio, air velocity, and evaporating temperature. In addition, frost thickness was monitored and measured by visualization tests during frosting operation. Based on the experimental results, the degradation of heat transfer performance due to frost formation was explored as a function of operating parameters. The rate of frost formation on the evaporator increases at relatively high humidity, high airflow rate, low inlet air temperature and low refrigerant temperature. As the frost thickness increases, airflow rate gradually decreases, while the capacity increases at the early stage of frost formation and then significantly drops.

    Original languageEnglish
    Title of host publicationProceedings of the ASME Process Industries Division - 2001
    EditorsR. Papaer, N. Amineni, P. Toma, R. Rudland, E. Crain
    Pages109-113
    Number of pages5
    Publication statusPublished - 2001
    Event2001 ASME International Mechanical Engineering Congress and Exposition - New York, NY, United States
    Duration: 2001 Nov 112001 Nov 16

    Publication series

    NameAmerican Society of Mechanical Engineers, Process Industries Division (Publication) PID
    Volume6

    Other

    Other2001 ASME International Mechanical Engineering Congress and Exposition
    Country/TerritoryUnited States
    CityNew York, NY
    Period01/11/1101/11/16

    ASJC Scopus subject areas

    • General Engineering

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