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Title: Influence of Void Ratio on Phase Change of Thermal Energy Storage for Heat Pipe Receiver
Author: Gui, X.1; Li, T.1; Yuan, D.1; Liang, Sh.1; Tang, D.1; Ling, B.2
Source: JOURNAL OF ENGINEERING THERMOPHYSICS
Issued Date: 2016-04-01
Volume: 25, Issue:2, Pages:275-287
DOI: 10.1134/S1810232816020120
DOC Type: Article
English Abstract: In this paper, influence of void ratio on phase change of thermal storage unit for heat pipe receiver under microgravity is numerically simulated. Accordingly, mathematical model is set up. Numerical method is offered. The liquid fraction distribution of thermal storage unit of heat pipe receiver is shown. Numerical results are compared with experimental ones in Japan. Numerical results show that void cavity prevents the process of phase change greatly. PCM melts slowly during sunlight periods and freezes slowly during eclipse periods as the void ratio increases. The utility ratio of PCM during both sunlight periods and eclipse periods decreases obviously as the void ratio increases. The thermal resistance of void cavity is much higher than that of PCM canister wall. Void cavity prevents the heat transfer between PCM zone and canister wall.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS Subject Extended: Thermodynamics ; Engineering ; Mechanics
Indexed Type: SCI
Funder: National Basic Research Program of China(2012CB933200) ; National Natural Science Foundation of China(51006108)
Language: 英语
WOS ID: WOS:000376459900012
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112512
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
2.Univ Notre Dame, Notre Dame, IN 46556 USA
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