Performance of U-tube solar collector with phase change materials

被引：0
|
作者：
Hu W. [1 ]
Zhang S. [2 ]
Zhang C. [1 ]
Xiong C. [1 ]
Sun P. [1 ]
机构：
[1] School of Energy and Environmental Engineering, Hebei University of Engineering, Handan
[2] The Hong Kong Polytechnic University, Hongkong
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 02期
关键词：
Collector; Phase change; Solar energy; Test; Thermal performance;
D O I：
10.16085/j.issn.1000-6613.2020-0732
中图分类号：
学科分类号：
摘要：
This study combined U-tube solar collector and phase change materials (paraffin wax) to fabricate an experimental platform for comparative investigation on water production and heat storage performance. The experimental results represent that the application of paraffin wax could effectively increase water production by 462g and working duration by 0.5h. At given test conditions, the thermal efficiency of U-tube solar collectors integrated with paraffin wax could reach approximately 54.6% and 28.51% in summer and transition season, respectively. In addition, the enhancement ratio of useful heat decreases from 38.26% to 14.66% in summer and 38.67% to 13.85% in transition season with an increase in the flow rate of the working medium. The findings suggest that the flow rate should be considered to optimize the application of U-tube solar collector integrated with paraffin wax in a practical project. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
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页码：771 / 777
页数：6
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