RESEARCH PAPERS: Falling Film Heat Transfer

The Intertube Falling Film: Part 2—Mode Effects on Sensible Heat Transfer to a Falling Liquid Film

[+] Author and Article Information
X. Hu, A. M. Jacobi

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 1206 W. Green Street, Urbana, IL 61801

J. Heat Transfer 118(3), 626-633 (Aug 01, 1996) (8 pages) doi:10.1115/1.2822678 History: Received September 20, 1995; Revised April 26, 1996; Online December 05, 2007


When a liquid film falls from one horizontal tube to another below it, the flow may take the form of discrete droplets, jets, or a continuous sheet; the mode plays an important role in the heat transfer. Experiments are reported that explore the local heat transfer behavior for each of these flow patterns, and the results are related to the important features of the flow. Spatially averaged Nusselt numbers are presented and discussed, and new mode-specific design correlations are provided. This research is part of an overall study of horizontal-tube, falling-film flow and heat transfer.

Copyright © 1996 by The American Society of Mechanical Engineers
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