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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

CYCLICAL HEAT CONDUCTION IN MELTING AND FREEZING OF COMPOSITE SLABS OF DIFFERENT PHASE CHANGE MATERIALS

Get access (open in a dialog) DOI: 10.1615/IHTC10.740
pages 343-348

Аннотация

A one-dimensional finite element phase change heat conduction model is developed for alternate melting and freezing in a composite slab which is composed of several different immiscible PCMs subjected to cyclical thermal boundary conditions. Investigations are carried out about the effects of melting-point difference and boundary temperature on the charge/discharge rates of thermal energy and about the dynamic performance of the charge and discharge processes. Numerical experiments discover that the charge/discharge rates of thermal energy can be enhanced in composite PCM slabs compared with in single PCM slabs during the cyclical melting/freezing processes.