期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 110, 期 3, 页码 1127-1131出版社
SPRINGER
DOI: 10.1007/s10973-011-2080-x
关键词
Paraffin; Cu nanoparticles; Phase change material; Melting rate; Freezing rate
资金
- National Natural Science Foundation of China [U0937604]
- Application of Basic Research Projects of Yunnan, China [2011FZ032]
The aim of this study is to investigate the melting/freezing characteristics of paraffin by adding Cu nanoparticles. Cu/paraffin composite phase change materials (PCMs) were prepared by a two-step method. The effects of Cu nanoparticles on the thermal conductivity and the phase change heat transfer of PCMs were investigated by the Hot Disk thermal constants analyzer and infrared monitoring methods, respectively. The maximum thermal conductivity enhancements up to 14.2% in solid state and 18.1% in liquid state are observed at the 2 wt% Cu/paraffin. The photographs of infrared monitoring suggest that the melting and freezing rates of Cu/paraffin are enhanced. For 1 wt% Cu/paraffin, the melting and freezing times can be saved by about 33.3 and 31.6%, respectively. The results provide that adding nanoparticles is an efficient way to enhance the phase change heat transfer of PCMs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据