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ISSN Online: 2377-424X

ISBN Print: 0-89116-559-2

International Heat Transfer Conference 8
August, 17-22, 1986, San Francisco, USA

A COMPARISON OF CORRELATIONS OF HEAT−TRANSFER COEFFICIENTS IN TWO-PHASE TWO-COMPONENT GAS-LIQUID FLOW IN VERTICAL TUBES

Get access (open in a dialog) DOI: 10.1615/IHTC8.4730
pages 2349-2354

Sinopsis

A number of correlations exist in the literature for predicting the mean heat-transfer coefficients in two-phase, two-component, gas-liquid upward flows in vertical tubes. While some of the correlations are purely empirical, others are based on theoretical or semi-theoretical models. In any case, the correlations have been tested against only a limited range of data and their general validity has not been established. A large set of data, taken on the same apparatus and involving an extensive set of fluid properties and mass flow rates, is used in making a crititical examination of the majority of the existing correlations. The correlations were tested over the variables recommended by the original authors. Based on this study, one can assess the success or otherwise of the correlations in predicting this very extensive set of data as a major step in assessing their general validity.