快速热响应复合材料的储/放热性能分析  

Analysis on Heat Storage and Release Performance of Composite Material With Rapid Thermal Response

作　　者：尹辉斌[1] 高学农[2] 丁静[1] 张正国[2] 

机构地区：[1]中山大学工学院,广东广州510006 [2]华南理工大学传热强化与过程节能教育部重点实验室,广东广州510640

出　　处：《工程热物理学报》2011年第10期1719-1721,共3页Journal of Engineering Thermophysics

基　　金：中国博士后科学基金(No.20100470949);国家自然科学基金(No.20976056)

摘　　要：以膨胀石墨为无机支撑材料、石蜡为有机相变材料,制备出高导热系数和储热密度的快速热响应复合材料,并构建传热性能测试系统对该复合材料的储/放热性能进行研究分析。研究结果表明,复合材料不仅能在熔融状态下保持形状稳定,而且显著提高了在储/放热过程的传热性能,从而有效地解决了传统相变材料高储热密度和低导热系数之间的矛盾。A kind of composite material with rapid thermal response,which has excellent thermal conductivity and heat storage capacity,was prepared by using expanded graphite as the inorganic supporting material and paraffin as the organic phase change material.A testing system for heat transfer performance was then built and used to analyze the heat storage and release performance of the composite material.The results show that the composite material can maintain the stability in shape during its molten state.Its heat storage and release performance can also be significantly improved,which solves the conflict between large heat storage capacity and low thermal conductivity of traditional materials effectively.

关 键 词：快速热响应 复合相变材料 热性能 

分 类 号：TK02[动力工程及工程热物理]