石蜡/膨胀石墨储热基板的实验研究  

Experimental Study of Paraffin/Expanded Graphite Based Heat Storage Substrate

作　　者：胡锦炎[1] 付星[1] 罗小兵[1] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《工程热物理学报》2013年第8期1511-1514,共4页Journal of Engineering Thermophysics

基　　金：国家973资助项目(No.2011CB013105)

摘　　要：本文提出了一种应用于大功率电子器件散热的相变储热基板,制备了用于相变储热基板的石蜡/膨胀石墨复合相变材料,并通过实验对相变储热基板的储热性能进行验证。结果表明,相变储热基板实验储热量和理论储热量吻合较好,约占热源产生热量的32%,该相变储热基板可以通过延长散热时间,降低基板单位时间散热负荷,同时降低热源和基板的升温速率。In this paper, a phase change heat storage substrate for cooling high-power electronic devices was proposed and the parafn/expended graphite composite phase change material was used in the heat storage substrate. The heat storage performance of the substrate was examined experimentally. The results show that the experimental heat storage of the substrate is consistent with the theoretical heat storage and the ratio between the heat stored in the substrate and the heat generated by the heat source is about 32%. When the time elapses~ the heat dissipation load of the unit time reduces. Furthermore, the temperature rising rates of the heat source and the substrate diminish.

关 键 词：相变储热基板 石蜡 膨胀石墨 差示扫描量热仪(DSC) 

分 类 号：TK123[动力工程及工程热物理—工程热物理]