间接式移动蓄热器相变材料熔化凝固实验

doi:10.16085/j.issn.1000-6613.2015.01.009

化工进展 ›› 2015, Vol. 34 ›› Issue (1): 54-60.DOI: 10.16085/j.issn.1000-6613.2015.01.009

间接式移动蓄热器相变材料熔化凝固实验

郭少朋^1,2, 高维², 赵军², 安青松²

1 内蒙古科技大学能源与环境学院, 内蒙古包头 014010;
2 天津大学机械工程学院中低温热能高效利用教育部重点实验室, 天津 300072

收稿日期:2014-05-30 修回日期:2014-06-30 出版日期:2015-01-05 发布日期:2015-01-05
通讯作者: 赵军,博士,教授,博士研究生导师,主要研究方向为可再生能源的转换及应用技术、逆循环(制冷和热泵)理论及技术和新型热能系统及节能技术。E-mail zhaojun@tju.edu.cn。
作者简介:郭少朋(1983-),男,博士,主要研究方向为能源存储与高效利用技术。
基金资助:
内蒙古自治区高等学校科学研究项目(NJZY14164)。

Experimental study on melting and solidification of phase change material in indirect contact mobilized thermal energy storage container

GUO Shaopeng^1,2, GAO Wei², ZHAO Jun², AN Qingsong²

1 School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
2 Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, MOE, Tianjin University, Tianjin 300072, China

Received:2014-05-30 Revised:2014-06-30 Online:2015-01-05 Published:2015-01-05

摘要/Abstract

摘要： 针对回收工业余热用于分散式用户供热的应用背景,本文设计搭建了间接式移动蓄热器实验系统,选取了赤藻糖醇作为相变材料,对相变材料进行了示差扫描量热法和过冷度的测试分析,获得了相变材料较为准确的蓄热性能参数和过冷度情况。此外,本文还通过对实验数据的整理及分析总结了间接式蓄热器内相变材料在充放热过程中的温度变化情况,在此基础上分析了蓄热材料的熔化和凝固规律。实验结果表明:在相变材料的熔化过程中,蓄热器上部相变材料熔化较快,下部相变材料熔化较慢;在相变材料的凝固过程中,蓄热器下部相变材料凝固较快,上部相变材料凝固较慢。水平方向上材料熔化凝固情况基本一致。通过本文的实验研究,初步掌握了间接式移动蓄热器相变内材料的熔化凝固情况,并由此分析了间接式移动蓄热器优化的方向,为该技术的进一步完善奠定了基础。

关键词: 可再生能源, 相变材料, 传热, 间接式移动蓄热, 赤藻糖醇

Abstract: Based on the application background of supplying heat for distributed users with recovered industrial waste heat, the experimental system of indirect contact mobilized thermal energy storage was designed and set up. Erythritol was chosen as the phase change material. The accurate parameters of heat storage performance and super-cooling of erithritol were obtained by testing and analyzing with DSC and super-cooling technology. Besides, the temperature variation of phase change material in indirect contact container during the charging and discharging processes was summarized by collecting and analyzing the experimental data. Melting and solidification of phase change material was studied. The phase change material on the top melted faster than that at the bottom during the charging process. However, the phase change material at the bottom solidified faster than that on the top during the discharging process. There was no distinct difference of melting and solidification along the horizontal direction. With the experimental study in this paper, melting and solidification of phase change material inside the indirect contact mobilized thermal energy storage container were investigated. The direction of optimizing the indirect contact mobilized thermal energy storage container was also analyzed, laying the foundation for its further improvement.

Key words: renewable energy, phase change material, heat transfer, indirect contact mobilized thermal energy storage, erythritol

中图分类号:

TK172
TK115

郭少朋, 高维, 赵军, 安青松. 间接式移动蓄热器相变材料熔化凝固实验[J]. 化工进展, 2015, 34(1): 54-60.

GUO Shaopeng, GAO Wei, ZHAO Jun, AN Qingsong. Experimental study on melting and solidification of phase change material in indirect contact mobilized thermal energy storage container[J]. Chemical Industry and Engineering Progree, 2015, 34(1): 54-60.

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间接式移动蓄热器相变材料熔化凝固实验

Experimental study on melting and solidification of phase change material in indirect contact mobilized thermal energy storage container

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