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RESEARCH PAPERS

Heat, Mass, and Momentum Transfer Inside Frosted Tubes—Experiment and Theory

[+] Author and Article Information
M. M. Chen

Avco Corp., Research and Advanced Development Division, Wilmington, Mass.

W. Rohsenow

Massachusetts Institute of Technology, Cambridge, Mass.

J. Heat Transfer 86(3), 334-340 (Aug 01, 1964) (7 pages) doi:10.1115/1.3688686 History: Received May 17, 1963

Abstract

The paper presents a combined experimental and theoretical study on the heat, mass, and momentum transfer in a frosted heat exchanger tube. Experimental evidence suggests that the behavior of the frosted tube is largely determined by the surface roughness of the frost layer. Based on simple stability considerations and the well-known rough pipe results of Nikuradse and von Karman, a theory is presented which predicts the frost surface roughness as functions of

RePr kkf
and the frost thickness. The theoretical results are shown to be in qualitative agreement with observed results. Heat-transfer and pressure drop calculations based on the predicted roughness are also found to be in fair agreement with observed results.

Copyright © 1964 by ASME
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