Gravity Controlled Condensation of an Ethanol and Water Mixture on a Horizontal Tube

Tetsu Fujii, Shigeru Koyama, Youichi Simizu, Masaharu Watabe, Yoshiro Nakamura

    Research output: Contribution to journalArticle

    23 Citations (Scopus)

    Abstract

    The experimental results for gravity-controlled condensation of ethanol and water vapor mixtures on a horizontal tube are presented. Dropwise, drop and streak, and ring wise condensations are observed for the ranges of ethanol vapor mass fraction W 1∞ >=0.2∼0.5, 0.5∼0.7 and 0.75∼0.8, respectively, while smooth-film condensation takes place for the ranges of W 1∞ =0∼0.2 and W 1∞ =0.8∼1. Previous theoritical results for the heat transfer coefficent by the present authors based on the two-phase boundary layer theory are valid for the case of smooth-film condensation, while 20 to 60% higher heat transfer coefficient values are obtained for the other cases.

    Original languageEnglish
    Pages (from-to)210-215
    Number of pages6
    JournalTransactions of the Japan Society of Mechanical Engineers Series B
    Volume55
    Issue number509
    DOIs
    Publication statusPublished - Jan 1 1989

    Fingerprint

    film condensation
    Condensation
    Gravitation
    Ethanol
    ethyl alcohol
    condensation
    vapors
    gravitation
    tubes
    heat transfer coefficients
    water
    water vapor
    Water
    boundary layers
    heat transfer
    rings
    Phase boundaries
    Heat transfer coefficients
    Water vapor
    Boundary layers

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Mechanical Engineering

    Cite this

    Gravity Controlled Condensation of an Ethanol and Water Mixture on a Horizontal Tube. / Fujii, Tetsu; Koyama, Shigeru; Simizu, Youichi; Watabe, Masaharu; Nakamura, Yoshiro.

    In: Transactions of the Japan Society of Mechanical Engineers Series B, Vol. 55, No. 509, 01.01.1989, p. 210-215.

    Research output: Contribution to journalArticle

    Fujii, Tetsu ; Koyama, Shigeru ; Simizu, Youichi ; Watabe, Masaharu ; Nakamura, Yoshiro. / Gravity Controlled Condensation of an Ethanol and Water Mixture on a Horizontal Tube. In: Transactions of the Japan Society of Mechanical Engineers Series B. 1989 ; Vol. 55, No. 509. pp. 210-215.
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    AU - Simizu, Youichi

    AU - Watabe, Masaharu

    AU - Nakamura, Yoshiro

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