Performance of a coil-pipe heat exchanger filled with mannitol for solar water heating system

被引：15

作者：

Ling, Ziye ^{[1
]}

Zeng, Guohao ^{[1
]}

Xu, Tao ^{[1
]}

Fang, Xiaoming ^{[1
]}

Zhang, Zhengguo ^{[1
]}

机构：

[1] S China Univ Technol, Sch Chem & Chem Engn, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ, Guangzhou 510640, Guangdong, Peoples R China

来源：

CLEAN, EFFICIENT AND AFFORDABLE ENERGY FOR A SUSTAINABLE FUTURE | 2015年 / 75卷

关键词：

solar water heater; solar thermal energy; phase change material; latent heat storage; mannitol; THERMAL-ENERGY STORAGE; CHANGE MATERIAL PCM;

D O I：

10.1016/j.egypro.2015.08.001

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：

Solar water heating systems that incorporate latent heat storage unit deals with instabilities of insolation. But most previous studies focus on phase change materials (PCMs) with phase change temperature (T-m) below 80 degrees C. In this study, we investigate the performance of mannitol (Tm: 166.7, enthalpy of phase change gamma: 323 kJ kg(-1)) in storing solar thermal energy and producing hot water. Results show mannitol can store high-level energy and the thermal energy storage performance are affected by the inlet flow rate and temperature of heat transfer fluid. 14kg mannitol with latent heat activated can heat 100L water from 30 up to 50 degrees C in 6 hours (C) 2015 The Authors. Published by Elsevier Ltd.

引用

收藏

页码：827 / 833

页数：7

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