HEAT TRANSFER ENHANCEMENT FOR PARAFFIN PCM BY CONCENTRIC ANNULUS FINNED TUBES

摘要：

On the emphasis of heat transfer enhancement on the side of paraffin, with heat medium as constant temperature heat source, heat transfer performances of paraffin PCM in thermal storage process were investigated. Firstly, a heat transfer setup was built. Secondly, the relationship among Stefan number, thermal storage time, paraffin temperature, radial distance was studied. Then, radial finned tubes were designed in different sizes, and the effect of heat transfer enhancement effected by fins was investigated.

关键词： Paraffin Phase change material Finned tube Plain tube Heat transfer enhancement

作者: Yuelian ZHANG Danxing ZHENG

作者单位: Chemical Engineering School, Beijing University of Chemical Technology,Beijing 100029, China

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）