Numerical simulation of high-temperature phase change heat storage system

In this paper, numerical results pertaining to cyclic melting and freezing of an encapsulated phase‐change material (PCM) have been reported. The cyclic nature of the present problem is relevant to latent heat thermal energy storage system used to power solar Brayton engines in space. In particular,...

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Bibliographic Details
Published in:Heat transfer, Asian research Asian research, 2004-01, Vol.33 (1), p.32-41
Main Authors: Xing, Yu-Ming, Xu, Xin, Yuan, Xiu-gan, Cui, Hai-Ting, Zhang, Yun-hao
Format: Article
Language:English
Subjects:
enthalpy method
numerical simulation
phase change material
solar dynamic
thermal energy storage
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Summary:In this paper, numerical results pertaining to cyclic melting and freezing of an encapsulated phase‐change material (PCM) have been reported. The cyclic nature of the present problem is relevant to latent heat thermal energy storage system used to power solar Brayton engines in space. In particular, a physical and numerical model of the single‐tube phase change heat storage system was developed. A high‐temperature eutectic mixture of LiF‐CaF2 was used as the PCM and dry air was used as the working fluid. Numerical results were compared with available experimental data. The trends were in close agreement. © 2003 Wiley Periodicals, Inc. Heat Trans Asian Res, 33(1): 32–41, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.10132
ISSN:1099-2871
1523-1496
DOI:10.1002/htj.10132