Experimental investigation of effects of supercooling on microencapsulated phase-change material (MPCM) slurry thermal storage capacities

被引：63
|
作者：
Zhang, Shuo [1 ]
Niu, Jianlei [1 ]
机构：
[1] Hong Kong Polytech Univ, Dept Bldg Serv Engn, Kowloon, Hong Kong, Peoples R China
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2010年 / 94卷 / 06期
关键词：
Experimental investigation; MPCM slurry; Thermal storage capacity; Supercooling; Effective latent heat; HEAT-TRANSFER CHARACTERISTICS; ENERGY-STORAGE; FLOW; PREVENTION; PARAFFIN;
D O I：
10.1016/j.solmat.2010.02.022
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Ice storage is currently the dominant cooling energy storage method. To more effectively utilize natural, renewable cooling sources, such as evaporative cooling and sky-radiative cooling, diurnal storage media operated on a daily basis at the temperate range between 10 and 20 degrees C are the most desirable. This paper will present the experimental investigation of microencapsulated paraffin slurry as cooling storage media for building cooling applications. The water slurry of microencapsulated n-hexadecane with a melting temperature of 18 degrees C was cooled to 5 degrees C and heated to 25 degrees C cyclically in a storage tank of 2301, and it was observed that full latent heat storage can only be realized at around 7 degrees C due to supercooling, and the effective cooling storage capacity at the cooling temperature range between 5 and 18 degrees C are obtained, which can be used to realistically estimate cooling storage capacity with various natural cooling schemes. (C) 2010 Elsevier By. All rights reserved.
引用
收藏
页码：1038 / 1048
页数：11
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