Transient Response of a Latent Heat Storage Unit: An Analytical and Experimental Investigation

[+] Author and Article Information
T. F. Green

Radian Corporation, Austin, Tex.

G. C. Vliet

The University of Texas at Austin, Austin, Tex.

J. Sol. Energy Eng 103(3), 275-280 (Aug 01, 1981) (6 pages) doi:10.1115/1.3266251 History: Received February 06, 1981; Online November 11, 2009


An analytical and experimental investigation of the transient thermal response of a latent heat storage unit is presented. Emphasis is placed on characterization of an entire storage unit rather than a single constituent storage element. In the analysis, two coupled governing partial differential equations that describe the model are derived and solved numerically. In the experimentation, a baffled shell and tube type heat exchanger was fabricated to provide data for a preliminary evaluation of the model. The experimental unit used water as the shell side HFT and poly(ethylene oxide) as the PCM contained within glass tubes. A comparison of experimental and analytical results shows that the analysis predicts somewhat conservative results.

Copyright © 1981 by ASME
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