Heat transfer correlation for film boiling in vertical upward flow

Lokanath Mohanta, Faruk A. Sohag, Fan-bill B. Cheung, Stephen M. Bajorek, Joseph M. Kelly, Kirk Tien, Chris L. Hoxie

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    There is no heat transfer correlation available in the Inverted Slug Film Boiling (ISFB) regime. In this study, a new correlation for film boiling in a vertical channel is proposed using a semi-empirical model. This correlation is applicable in the Inverted Annular Film Boiling (IAFB) heat transfer regime as well as ISFB heat transfer regime. A semi-empirical model is developed to establish the functional dependence of the Nusselt number on various controlling parameters. Test data obtained from the transient reflood tests carried out in a full length 7×7 vertical Rod Bundle Heat Transfer (RBHT) facility are used to develop the correlation. The predicted Nusselt number agrees within 15% with the RBHT data set and other data set available in the literature. This heat transfer correlation is applicable up to a void fraction of 90%, i.e., both in the IAFB and ISFB regimes. The proposed correlation is also applicable to a tube geometry using a modified coefficient in the correlation with an error less than 10%.

    Original languageEnglish (US)
    Pages (from-to)112-122
    Number of pages11
    JournalInternational Journal of Heat and Mass Transfer
    Volume107
    DOIs
    StatePublished - Apr 1 2017

    Fingerprint

    film boiling
    Boiling liquids
    heat transfer
    Heat transfer
    Nusselt number
    bundles
    rods
    Void fraction
    voids
    tubes
    Geometry
    coefficients
    geometry

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Mechanical Engineering
    • Fluid Flow and Transfer Processes

    Cite this

    Mohanta, Lokanath ; Sohag, Faruk A. ; Cheung, Fan-bill B. ; Bajorek, Stephen M. ; Kelly, Joseph M. ; Tien, Kirk ; Hoxie, Chris L. / Heat transfer correlation for film boiling in vertical upward flow. In: International Journal of Heat and Mass Transfer. 2017 ; Vol. 107. pp. 112-122.
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    Heat transfer correlation for film boiling in vertical upward flow. / Mohanta, Lokanath; Sohag, Faruk A.; Cheung, Fan-bill B.; Bajorek, Stephen M.; Kelly, Joseph M.; Tien, Kirk; Hoxie, Chris L.

    In: International Journal of Heat and Mass Transfer, Vol. 107, 01.04.2017, p. 112-122.

    Research output: Contribution to journalArticle

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    AU - Mohanta, Lokanath

    AU - Sohag, Faruk A.

    AU - Cheung, Fan-bill B.

    AU - Bajorek, Stephen M.

    AU - Kelly, Joseph M.

    AU - Tien, Kirk

    AU - Hoxie, Chris L.

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    AB - There is no heat transfer correlation available in the Inverted Slug Film Boiling (ISFB) regime. In this study, a new correlation for film boiling in a vertical channel is proposed using a semi-empirical model. This correlation is applicable in the Inverted Annular Film Boiling (IAFB) heat transfer regime as well as ISFB heat transfer regime. A semi-empirical model is developed to establish the functional dependence of the Nusselt number on various controlling parameters. Test data obtained from the transient reflood tests carried out in a full length 7×7 vertical Rod Bundle Heat Transfer (RBHT) facility are used to develop the correlation. The predicted Nusselt number agrees within 15% with the RBHT data set and other data set available in the literature. This heat transfer correlation is applicable up to a void fraction of 90%, i.e., both in the IAFB and ISFB regimes. The proposed correlation is also applicable to a tube geometry using a modified coefficient in the correlation with an error less than 10%.

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