期刊
APPLIED ENERGY
卷 185, 期 -, 页码 762-767出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2016.10.104
关键词
Phase change materials; Thermal energy storage; Oxalic acid dihydrate; Sodium chloride; Melting point
资金
- National Natural Science Foundation of China [U1407205]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [2015351]
Oxalic acid dihydrate (OAD), which is inexpensive and has a high initial phase transition enthalpy, is a very promising phase change material. However, severe material leakage can occur owing to the large amount of steam generated when OAD is heated to melt. This behavior subsequently degrades the thermophysical properties of OAD over time, thereby hindering further application of OAD. In the present study, NaCl was introduced as an additive in OAD to reduce its melting point. Results showed that a NaCl additive content of 9 wt% was the optimal amount to reduce the phase change temperature of OAD and produce sharp endothermal and exothermal peaks without reducing the phase change enthalpy significantly. Furthermore, minimal changes in the thermophysical properties of this mixture were observed after being subjected to 100 thermal cycles. The current findings are expected to broaden the application scope of OAD for thermal energy storage. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据