期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 72, 期 -, 页码 329-335出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2014.01.021
关键词
Melting; Energy storage; Phase change material; Scale analysis; Natural convection
资金
- National Renewable Energy Laboratory
- Hong Kong Research Grant Council (RGC) General Research Fund [PolyU 5241/11E]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1347188] Funding Source: National Science Foundation
This paper documents the fundamentals of heat storage by melting a phase-change material inside a cylindrical enclosure with a vertical heated pipe on its axis. The phenomenon is studied analytically and numerically. The analysis consists of the scale analysis of the early stages of natural convection in the liquid, and an analysis of the entire duration of the melting process. The numerical simulations cover the entire process, and validate all the features predicted by theory. (C) 2014 Elsevier Ltd. All rights reserved.
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