Effect of channel geometry on boiling heat transfer and pressure drop of R32 inside horizontal multiport tubes

Daisuke Jige, Yusei Terashima, Norihiro Inoue, Shigeru Koyama

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

    Abstract

    This study was conducted to investigate the flow boiling heat transfer and pressure drop characteristics of R32 in horizontal multiport tubes with circular and triangular mini-channels. The heat transfer and pressure drop characteristics of the boiling flow were measured over a range of mass velocities from 50 to 400 kg/(m2s), a range of heat fluxes from 5 to 20 kW/m2, and at a saturation temperature of 15 °C. The pressure drop characteristics were also measured for adiabatic two-phase flow. The effects of the channel geometry on the pressure drop and boiling heat transfer characteristics were clarified. The measured frictional pressure drop was compared to that predicted by existing correlations.

    Original languageEnglish
    Title of host publication24th IIR International Congress of Refrigeration, ICR 2015
    PublisherInternational Institute of Refrigeration
    Pages834-841
    Number of pages8
    ISBN (Electronic)9782362150128
    DOIs
    Publication statusPublished - Jan 1 2015
    Event24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
    Duration: Aug 16 2015Aug 22 2015

    Publication series

    NameRefrigeration Science and Technology
    ISSN (Print)0151-1637

    Other

    Other24th IIR International Congress of Refrigeration, ICR 2015
    Country/TerritoryJapan
    CityYokohama
    Period8/16/158/22/15

    All Science Journal Classification (ASJC) codes

    • Control and Systems Engineering
    • Electrical and Electronic Engineering
    • Mechanical Engineering
    • Condensed Matter Physics

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