储能科学与技术 ›› 2012, Vol. 1 ›› Issue (2): 123-130.

• 研究及进展 • 上一篇    下一篇

封装PCM陶瓷储热材料的性能

冷光辉1, 吴建锋2, 徐晓虹2   

  1. 1 中国科学院过程工程研究所,北京 100190;
    2 武汉理工大学材料科学与工程学院,湖北 武汉 430070
  • 收稿日期:2012-06-29 出版日期:2012-11-19 发布日期:2012-11-19
  • 通讯作者: 吴建锋,博士,教授,博士生导师,研究方向为陶瓷材料,储热材料及储热系统,E-mail:wujf@whut.edu.cn.
  • 作者简介:冷光辉(1984--),男,博士,研究方向为储热材料及系统,E-mail:a280794125@163.com
  • 基金资助:
    国家重点基础研究发展计划(973)项目(2010CB227105)

Encapsulation of PCM in ceramic thermal energy storage materials

LENG Guanghui1, WU Jianfeng2, XU Xiaohong2   

  1. 1 Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;
    2 School of Material Science and Engineering,Wuhan University of Technology,Wuhan 430070,Hubei,China
  • Received:2012-06-29 Online:2012-11-19 Published:2012-11-19

摘要: 以红柱石为主要原料,采用原位生成堇青石技术制备高温性能优良的红柱石蜂窝陶瓷储热材料.再利用特制的封装剂将相变材料(PCM)封装在部分蜂窝陶瓷孔中,制备储热密度大的显热-潜热高温复合储热材料.采用SEM,EPMA,TG-DTA等测试方法对封装剂与陶瓷基体的结合性,PCM与陶瓷基体的适应性及复合储热材料的储热密度进行研究.结果表明红柱石蜂窝陶瓷能安全地封装PCM,封装质量分数为20%的K2SO4后的储热密度为987.70 kJ/kg(0~1080 ℃),封装质量分数为16%的NaCl复合储热密度为796.40 kJ/kg(0~810 ℃).制备的复合储热材料具有较高的储热密度,能实现高温储热.

关键词: 储热材料, 红柱石蜂窝陶瓷, 显热-潜热复合储热, 封装剂, 高温高效

Abstract: This study is concerned about encapsulation of phase change materials (PCM) with a ceramic honeycomb structure to give composite PCM. K2SO4 and NaCl were used as the PCM, whereas the honeycomb structure was made of cordierite synthesized in-situ with andalusite as the main raw material. A special agent was developed to seal the opening of the honeycomb pores filled with the PCM. A number of techniques were used to characterize the properties of the prepared composite PCM, including SEM, EPMA, TG-DTA and so on. It was shown that andalusite based ceramic honeycomb structures and the sealing agent can effectively encapsulate the PCMs. The prepared thermal storage density of the composite material containing 20% K2SO4 was around 987.70 kJ/kg (0~1080 ℃), whereas that with 16% NaCl was 796.40 kJ/kg (0~810 ℃).

Key words: thermal energy storage materials, andalusite based honeycomb ceramic, sensible-latent composite thermal storage, package agent, encapsulation

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