Numerical analysis of a PCM thermal storage, system with varying wall temperature

被引:68
作者
Halawa, E [1 ]
Bruno, F [1 ]
Saman, W [1 ]
机构
[1] Univ S Australia, Sustainable Energy Ctr, Mawson Lakes, SA 5095, Australia
关键词
latent heat thermal storage; phase change materials; sensible heat;
D O I
10.1016/j.enconman.2004.11.003
中图分类号
O414.1 [热力学];
学科分类号
摘要
Numerical analysis of melting and freezing of a PCM thermal storage unit (TSU) with varying wall temperature is presented. The TSU under analysis consists of several layers of thin slabs of a PCM subjected to convective boundary conditions where air flows between the slabs. The model employed takes into account the variations in wall temperature along the direction of air flow as well as the sensible heat. The paper discusses typical characteristics of the melting/freezing of PCM slabs in an air stream and presents some results of the numerical simulation in terms of air outlet temperatures and heat transfer rates during the whole periods of melting and freezing. Considerations in the design of the TSU are also given. (c) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2592 / 2604
页数:13
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