Modeling of Arbitrary-Shaped Specific and Latent Heat Curves in Phase-Change Storage Simulation Routines

[+] Author and Article Information
G. C. J. Bart, P. C. van der Laag

Applied Physics Department, Delft University of Technology, 2600 GA Delft, The Netherlands

J. Sol. Energy Eng 112(1), 29-33 (Feb 01, 1990) (5 pages) doi:10.1115/1.2930755 History: Received January 20, 1989; Revised August 24, 1989; Online June 06, 2008


In solar heat storage, use is often made of the latent heat of phase-change materials (PCM) with a wide temperature transition range. In this paper the heat withdrawal of a slab of such a phase-change material after a step-wise change in wall temperature, and as a function of the shape of the specific and latent heat curve, has been studied with a computer simulation. It will be outlined that various shaped curves show the same heat withdrawal character as an equivalent rectangular-shaped specific heat curve. A procedure to obtain this equivalent curve will be given.

Copyright © 1990 by The American Society of Mechanical Engineers
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