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材料工程  2017, Vol. 45 Issue (11): 66-71    DOI: 10.11868/j.issn.1001-4381.2015.000687
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
新型复合相变储能材料Na/Paraffin的制备与性能分析
徐永锋1,2, 李明1, 罗熙1, 余琼粉1, 王云峰1, 冷从斌1
1. 云南师范大学 太阳能研究所, 昆明 650500;
2. 浙江省太阳能产品质量检验中心, 浙江 海宁 314416
Preparation and Performance Analysis of Na/Paraffin New-style Composite Phase Change Energy Storage Material
XU Yong-feng1,2, LI Ming1, LUO Xi1, YU Qiong-fen1, WANG Yun-feng1, LENG Cong-bin1
1. Solar Energy Research Institute, Yunnan Normal University, Kunming 650500, China;
2. Zhejiang Solar Energy Product Quality Inspection Center, Haining 314416, Zhejiang, China
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摘要 为提升广泛应用于相变储能领域的石蜡的导热系数,在手套箱内将导热系数高、熔点低、密度小的金属Na与石蜡复合为Na/paraffin新型相变储能材料,并对其导热系数、相变潜热及储/放热特性进行研究。结果表明:5% Na/95% paraffin复合相变储能材料导热系数较纯石蜡提高了17.6倍,储/放热速率均较纯石蜡提升了1倍;经过200次循环实验后,3% Na/97% paraffin复合相变储能材料相变温度由60.58℃下降到59.65℃,相变潜热由166.7520J·g-1下降到160.5632J·g-1,热导率由2.33W·m-1·K-1减少到1.98W·m-1·K-1
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徐永锋
李明
罗熙
余琼粉
王云峰
冷从斌
关键词 Na/Paraffin复合相变储能材料相变潜热导热系数    
Abstract:In order to improve the thermal conductivity of paraffin widely applied in phase change energy storage field, metal Na with high thermal conductivity, low melting point and low density was compounded to paraffin to form a new phase change energy storage material (Na/paraffin) in glove box, and the thermal conductivity, latent heat and heat storage/release characteristics of Na/paraffin were studied. The results show that thermal conductivity of 5%Na/95%paraffin composite phase change energy storage materials is improved 17.6 times compared to pure paraffin and the heat storage/release ratio of 5%Na/95%paraffin is two times of pure paraffin. After 200 cycles experiment, the phase transition temperature of 3%Na/97%paraffin composite phase change energy storage materials falls from 60.58℃to 59.65℃. The phase transformation latent heat and thermal conductivity rate are reduced from 166.7520J·g-1 to 160.5632J·g-1 and from 2.33W·m-1·K-1 to 1.98W·m-1·K-1, respectively.
Key wordsNa/paraffin    composite phase change energy storage material    latent heat    thermal conductivity
收稿日期: 2016-06-01      出版日期: 2017-11-18
中图分类号:  TB332  
通讯作者: 李明(1964-),男,博士生导师,教授,主要从事太阳能光热、光伏和制冷领域的研究,联系地址:云南师范大学太阳能研究所(650500),E-mail:lmllldy@126.com     E-mail: lmllldy@126.com
引用本文:   
徐永锋, 李明, 罗熙, 余琼粉, 王云峰, 冷从斌. 新型复合相变储能材料Na/Paraffin的制备与性能分析[J]. 材料工程, 2017, 45(11): 66-71.
XU Yong-feng, LI Ming, LUO Xi, YU Qiong-fen, WANG Yun-feng, LENG Cong-bin. Preparation and Performance Analysis of Na/Paraffin New-style Composite Phase Change Energy Storage Material. Journal of Materials Engineering, 2017, 45(11): 66-71.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.000687      或      http://jme.biam.ac.cn/CN/Y2017/V45/I11/66
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