This thesis is concerned with an investigation carried out to establish a new correlation for the prediction of the heat transfer coefficient during flow boiling through tubes, vertical and horizontal flows, for water and organic fluids (including refrigerants). An additive mechanism of convective and boiling heat transfer has been formulated to give the net heat transfer during flow boiling. The correlation employs three dimensionless parameters: the Convection number, the Boiling number and the Froude number. The correlation has been tested with the data (over 500) from twelve experimental cases of six investigators and the mean deviation from the measured values of the heat transfer coefficients has been found to be + 13%.

Library of Congress Subject Headings

Heat--Transmission; Heat-transfer media

Publication Date


Document Type


Department, Program, or Center

Mechanical Engineering (KGCOE)


Names Illegible


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