Thermal properties and stabilities of the eutectic mixture: 1,6-hexanediol/lauric acid as a phase change material for thermal energy storage

被引：55
作者：
Han, Lipeng [1 ,2 ]
Ma, Guixiang [1 ,2 ]
Xie, Shaolei [1 ]
Sun, Jinhe [1 ]
Jia, Yongzhong [1 ]
Jing, Yan [1 ]
机构：
[1] Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2017年 / 116卷
基金：
中国国家自然科学基金;
关键词：
Eutectic mixture; 1,6-hexanediol; Lauric acid; Phase change material; Stability; CHANGE MATERIALS PCMS; LATENT-HEAT STORAGE; BINARY-MIXTURES; FATTY-ACIDS; BUILDING APPLICATIONS; STEARIC-ACID; RELIABILITY; TEMPERATURE; EQUILIBRIUM; ENTHALPY;
D O I：
10.1016/j.applthermaleng.2017.01.082
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Thermal properties and stabilities of the eutectic mixture: 1,6-hexanediol (HE) and lauric acid (IA) as a new phase change material (PCM) for latent heat thermal energy storage (TES) were investigated. Differential scanning calorimetry (DSC) results indicated that the aforementioned HE/LA mixture with eutectic composition (70/30 wt.%) was a suitable PCM in terms of melting point (T-peak = 36.92 +/- 0.71 degrees C) and latent heat of fusion (Delta H-m, = 177.11 +/- 7.93 J g(-1)). After 1000 thermal cycles, the change in melting point for the eutectic mixture was in the range of -0.49% to -1.19%, and the change in latent heat of fusion was in the range of -0.22% to -3.24%. The eutectic mixture was thermally and chemically stable according to results of thermogravimetric analysis (TGA), volatile test and Fourier Transform Infrared (FT-IR) spectroscopic analysis. Therefore, the HE/LA eutectic mixture is an effective TES material to reduce energy consumption. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：153 / 159
页数：7
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