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

页码：1038 / 1048

页数：11

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