Study on properties of ferumoxytol/stearic acid/stearyl alcohol composite phase change heat storage material

被引：0

作者：

Chen Z. ^{[1
]}

Sun Z. ^{[1
]}

Tang X. ^{[1
]}

Liu X. ^{[1
]}

Li C. ^{[1
]}

Li J. ^{[1
]}

机构：

[1] School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2021年 / 42卷 / 03期

关键词：

Enhanced heat transfer; Heat conduction; Heat storage; Nano material; Phase change material;

D O I：

10.19912/j.0254-0096.tynxb.2018-1083

中图分类号：

学科分类号：

摘要：

Composite phase change materials are prepared using ferumoxytol, stearic acid and stearyl alcohol. The composite materials effectively improve the thermal conductivity of organic phase change material. The dispersants, the concentrations of ferumoxytol and dispersants are the key influencing factors, as well as ultrasound dispersing time. The experimental results show that the effect of anionic surfactant on Fe2O3 dispersing is better that the effect of cationic surfactant or nonionic surfactant. The dispersing stability of Fe2O3 in the composite PCMs reached the best effect when 0.8%, (wt) dispersant SDBS and 0.4%, (wt) Fe2O3 are added into phase change material and the ultrasound dispersing time is 80 min. The latent heat of phase change and the phase transition temperature of the composite phase change material decreased a little with the addition of Fe2O3. The thermal conductivity of the composite phase change material increased by 34.9%, compared to that of pure phase change material. The phase transition temperature changes no more than 0.41℃ after 300 times melting/solidifying cycling tests, as well as the phase change latent heat fluctuation range doesn't exceed 4.0% when Fe2O3 is added into phase change material. The thermal stability of the composite phase change material is good. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.

引用

页码：422 / 427

页数：5

共 18 条

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