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research-article

GENERAL CORRELATION FOR HEAT TRANSFER TO GAS-LIQUID FLOW IN VERTICAL CHANNELS

[+] Author and Article Information
Mirza Mohammed Shah

Engineering Research Associates, 10 Dahlia Lane, Redding, CT 06896, USA
mmshahpe@hotmail.com

1Corresponding author.

ASME doi:10.1115/1.4040652 History: Received January 15, 2018; Revised May 30, 2018

Abstract

A general correlation is presented for heat transfer during flow of gas-liquid mixtures flowing in vertical channels prior to dryout. It has been verified with a wide range of data that include upwards and downwards flow in heated and cooled tubes, annuli, and rectangular channels. The data are from 19 studies and include 14 gas-liquid mixtures with a very wide range of properties. The parameters include pressure 1 to 6.9 bars, temperature 16 to 115 oC, liquid Reynolds number from 2 to 127231, superficial gas and liquid velocities up to 87 and 13 m/s respectively, and ratio of superficial gas and liquid velocities 0.03 to 1630. The 1022 data points are predicted by the new correlation with mean absolute deviation (MAD) of 18.1 %. Several other correlations were also compared to the same data and had MAD of 28.6 to 45.5 percent.

Copyright (c) 2018 by ASME
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