SIMULATION OF HEAT TRANSFER ENHANCEMENT IN A COLD THERMAL ENERGY STORAGE SYSTEM

摘要：

Phase change material (PCM) is the most promising material for the cold thermal energy storage system (CTES) used in air condition equipment. However, it is not be used to commercial scale not only because of their low heat conductivity, but of the surface heat flux decreases due to increasing thermal resistance of the molten or solidified medium. Therefore, heat transfer enhancement is essential for CTES. Here we present a method to improve heat transfer in the CTES. The model for the solidification around the radial aluminium foils is developed, and two-dimensional simulations are performed using the Fluent software. The phase interface position, temperature distribution, the time for complete solidification and surface heat flux are obtained. The computation results show the heat transfer process, and the effects of aluminium foil and the distance between foil on heat transfer enhancement.

作者: Chaxiu GUO Xinli WEI Dingbao WANG Hong LIU

作者单位: School of Chemical Engineering, Zhengzhou University, 450002 Zhengzhou, 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）