Study of Unsteady Flow in a Heat Exchanger by the Method of Characteristics

[+] Author and Article Information
Yuan Mao Huang

Department of Mechanical Engineering, National Taiwan University, Taiwan

J. Pressure Vessel Technol 114(4), 459-463 (Nov 01, 1992) (5 pages) doi:10.1115/1.2929255 History: Received August 03, 1990; Revised April 23, 1992; Online June 17, 2008


The one-dimensional, unsteady flow in an air-to-air heat exchanger is studied. The governing equations are derived and the method of characteristics with the uniform interval scheme is used in the analysis. The effect of the fin improvement factor on the air temperature in the heat exchanger and the heat transfer rate of the heat exchanger, and air properties in the heat exchanger are analyzed. The numerical results are compared and show good agreement with the available data.

Copyright © 1992 by The American Society of Mechanical Engineers
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