SPECIFIC HEAT AND THERMAL CONDUCTIVITY OF N-HEXTRIACONTANE AND ITS COMPOSITE

摘要：

This study focuses on the specific heat, thermal conductivity and diffusivity of n-hextriacontane and its modified composite as promising phase change material (PCM) for thermal energy storage. The specific heats of the studied materials were measured in the temperature range of 276-338 K by temperature modulate differential scanning calorimetry (TMDSC). Thermal conductivity was measured in the range of 303-333 K with hot disk technique. Thermal diffusivity was calculated based on the specific heat, thermal conductivity and density. The results of the investigations show that the thermal conductivity and thermal diffusivity of both n-Hexatriacontane and modified samples decrease with increasing of temperature, but the modified sample has better performance than n-Hexatriacontane. The modified n-Hexatriacontane possess a promising application as phase change materials used for the micro-electronics radiator, considering the advantage that it has a great latent heat storage in the temperature range of 340-350 K.

关键词： n-Hextriacontane phase change materials specific heat thermal conductivity thermal diffusivity

作者: Jun-Ning Zhao Li-Xian Sun Zhi-Cheng Tan

作者单位: Materials and Thermochemistry Laboratory Dalian Institute of Chemical Physics Chinese Academy of Sci China Ionic Liquid Laboratory and Thermochemistry Laboratory Dalian Institute of Chemical Physics Ch

会议类型: 国际会议

会议名称: The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)

会议地点: 北京

会议语种:英文

页码: 811-814

在线出版日期: 2010-10-19（万方平台首次上网日期，不代表论文的发表时间）