Heat Transfer in Nucleate Boiling of Binary Mixtures : Heat Transfer Measurement and Assessment of Available Correlations
Heat-transfer coefficients in nucleate pool boiling of binary mixtures were measured on a circular copper plate, 40 mm in diameter, for a wide range of heat flux and over the full range of concentrations. Measurements were performed for five mixtures of methanol/water, thanol/water, methanol/ethanol...
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Published in | Nihon Kikai Gakkai rombunshuu. B hen Vol. 60; no. 577; pp. 3101 - 3108 |
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Main Authors | , |
Format | Journal Article |
Language | Japanese English |
Published |
The Japan Society of Mechanical Engineers
1994
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Subjects | |
Online Access | Get full text |
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Summary: | Heat-transfer coefficients in nucleate pool boiling of binary mixtures were measured on a circular copper plate, 40 mm in diameter, for a wide range of heat flux and over the full range of concentrations. Measurements were performed for five mixtures of methanol/water, thanol/water, methanol/ethanol, ethanol/n butanol, and methanol/benzene, each in the saturated state at atmospheric pressure. Measured data were expressed in the form α=Cqn, where a is the heat-transfer coefficient, q is heat flux, and C and n are constants. The validity of available correlations for boiling heat transfer of a binary mixture were assessed on the basis of the measured data. Among five correlations evaluated, the Stephan-Korner correlation is found to be the best although it contains an empirical constant which varied with the mixture. |
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ISSN: | 0387-5016 1884-8346 |
DOI: | 10.1299/kikaib.60.3101 |