Heat storage properties of the cement mortar incorporated with composite phase change material
Heat storage properties of the cement mortar incorporated with composite phase change material
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DOI：
10.1016/j.apenergy.2012.09.057
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发表时间：
2013-03-01
期刊：
影响因子：
11.2
通讯作者：
Tan, Jinmiao
中科院分区：
文献类型：
--
作者：
Li, Min;Wu, Zhishen;Tan, Jinmiao
对膨胀石墨（EG）/石蜡复合相变材料（PCM）水泥砂浆进行了试验研究。采用真空吸附法将石蜡吸附到乙二醇中制备了复合相变材料。制备了合适质量分数的复合相变材料的蓄热水泥砂浆。设计了一套评价HSCM蓄热效果的试验装置。比较了HSCM与普通水泥砂浆（OCM）的温度变化和蓄热系数。对于一个立方体与一个HSCM板和一个立方体与一个OCM板，最大的室内中心温差是2.2 K的热存储和1.5 K的热释放过程中。HSCM板的蓄热系数是OCM板的1.74倍。结果表明，HSCM板具有良好的蓄热性能。(c)2012爱思唯尔有限公司保留所有权利。
An experimental study is presented on the cement mortar incorporated with expanded graphite (EG)/paraffin composite phase change material (PCM). The composite PCM was prepared by absorbing paraffin into EG with vacuum absorption method. The heat storage cement mortar (HSCM) with proper mass fraction of the composite PCM was prepared. A testing device was designed for evaluating the heat storage effect of HSCM. Temperature variation and heat storage coefficient of HSCM were compared to those of the ordinary cement mortar (OCM). For a cubic with one HSCM board and a cubic with one OCM board, the maximum indoor center temperature difference is 2.2 K during the heat storage and 1.5 K during the heat release process. The heat storage coefficient of HSCM board is 1.74 times of that of OCM board. The results indicate that the HSCM board has good heat storage property. (c) 2012 Elsevier Ltd. All rights reserved.