Experimental study and performance prediction of the PCM-antifreeze solar thermal system under cold weather conditions

被引：18

作者：

Zhou, Fan ^{[1
]}

Ji, Jie ^{[1
]}

Yuan, Weiqi ^{[1
]}

Modjinou, Mawufemo ^{[1
]}

Zhao, Xudong ^{[2
]}

Huang, Shengjuan ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, 96 Jinzhai Rd, Hefei, Anhui, Peoples R China

[2] Univ Hull, Sch Engn, Kingston Upon Hull HU6 7RX, N Humberside, England

来源：

APPLIED THERMAL ENGINEERING | 2019年 / 146卷

基金：

中国国家自然科学基金;

关键词：

Solar thermal system; Phase change material; Antifreeze performance; FLAT-PLATE; PHASE-CHANGE; WATER-HEATER; COLLECTOR; STORAGE;

D O I：

10.1016/j.applthermaleng.2018.10.038

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper proposes a novel PCM-antifreeze solar thermal system which incorporates a specific amount of phase change material (PCM) into the conventional flat-plate solar thermal system (FPSCs) to prevent the system from freezing damage under cold weather conditions. Previous studies about the freeze prevention of the FPSCs mainly focus on the development of the antifreeze auxiliary system (electric or manual) which will reduce the system reliability. This work presents a study for a low cost and effective PCM-antifreeze solar thermal system. The experimental setup is built and the mathematical model is presented for the system. The daytime working and night antifreeze performance of the system are evaluated. Results show that the seasonal average freezing risk index of the PCM system is 8% while the value for conventional system is 66%.

引用

页码：526 / 539

页数：14

共 23 条

[1]

Bergman TL., 2011, Introduction to heat transfer, DOI DOI 10.1016/J.APPLTHERMALENG.2011.03.022

[2] Thermal performance of an integrated collector storage solar water heater (ICSSWH) with phase change materials (PCM) [J].