Effects of Air upon Gravity Controlled Condensation of Non-Azeotropic Binary Refrigerant Vapour on a Horizontal Tube

Tetsu Fujii, Shigeru Koyama, Masao Goto

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    A simplified method for predicting laminar gravity controlled condensation characteristics of ternary mixture is developed on the basis of two-phase boundary layer theory and is applied to the condensation of non-azeotropic mixture containing a small amount of air (air-R 12-R 114). The effects of air upon condensation rate, heat flux and thermodynamic states at the vapour-liquid interface are evaluated over a wide range of mass fraction of each component. Experiment of condensation on a horizontal tube was performed at constant bulk vapour temperature varying bulk mass fraction of components and surface temperature of the test tube. The experimental result on heat transfer agrees well with the present theoretical ones within ±20 %.

    Original languageEnglish
    Pages (from-to)2442-2450
    Number of pages9
    JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
    Volume51
    Issue number467
    DOIs
    Publication statusPublished - Jan 1 1985

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Mechanical Engineering

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