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Title: Experimental study on natural convective heat transfer of tube immersed in microencapsulated phase change material suspensions
Author: Wang, Liang1; Zhang, Jian1, 2; Wang YiFei(王艺斐)1, 2; Lin, Xipeng1; Xie, Ningning1; Chen, Haisheng1
Source: APPLIED THERMAL ENGINEERING
Issued Date: 2016-04-25
Volume: 99, Pages:583-590
Keyword: Natural convection ; Natural convective heat transfer ; Heat transfer ; Phase change ; Microencapsulated phase change material ; Thermal energy storage
DOI: 10.1016/j.applthermaleng.2016.01.102
DOC Type: Article
English Abstract: Microencapsulated phase change material suspensions have many potential applications in the fields of energy storage, air-conditioning and exchanger, etc. In this paper, stable microencapsulated phase change material suspensions are prepared with the water-propanol mixture as the base fluid and the addition of dispersants. The dependence of the specific heat, phase change enthalpy, rheological behavior and thermal conductivity of such fluids on the concentration and temperature is experimentally determined. And the heat storage and the natural convective heat transfer performance of tube immersed in the 10wt%-30wt% microencapsulated phase change material suspensions are experimentally studied. The result shows that the natural convection process can be characterized by three regimes: the pure conduction, the quasi steady and the decay period. The convective heat transfer coefficient of a thick suspension is lower than the diluted one, although more heat can be stored by the thick suspension. And the increase of the temperature and flow rate of heat transfer fluid inside the tube is beneficial to the natural convective heat transfer performance. (C) 2016 Elsevier Ltd. All rights reserved.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
WOS Subject Extended: Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
WOS Keyword Plus: THERMAL-ENERGY STORAGE ; CHANGE MATERIAL SLURRIES ; TANK ; FLOW
Indexed Type: SCI
Funder: National Natural Science Foundation of China(51306179) ; Key Project of Chinese National Programs for Fundamental Research and Development (973 program)(2015CB251300) ; International Science and Technology Cooperation Program of China(2014DFA60600)
Language: 英语
WOS ID: WOS:000373863200059
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Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112502
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 Chinese Acad Sci, Beijing 100049, Peoples R China
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