相变蓄能建筑墙体研究进展  

Review on phase change material building walls

作　　者：张小松[1] 夏燚[1,2] 金星[3] 

机构地区：[1]东南大学能源与环境学院,南京210096 [2]南京师范大学能源与机械工程学院,南京210042 [3]东南大学建筑学院,南京210096

出　　处：《东南大学学报（自然科学版）》2015年第3期612-618,共7页Journal of Southeast University：Natural Science Edition

基　　金：国家自然科学基金重点资助项目(51036001);"十二五"国家科技支撑计划资助项目(2011BAJ03B14)

摘　　要：对相变材料在墙体中的封装方式（直接混合、宏观封装、微观封装和定形相变材料封装）、相变材料的种类和物性等方面的研究进行了归纳总结.从实验和模拟2个方面,对相变材料位于墙体表面和墙体内部影响室内环境和建筑能耗的研究进行了综述和评价.分析表明,微观封装和定形相变材料的封装效果较好;墙体用相变材料的相变温度一般在20～30℃范围内;相变材料层在墙体中的安装位置可分为墙体表面和墙体内部2种,但相变材料层在墙体内的最优位置并不固定,受相变材料物性、墙体材料以及室内外环境工况的影响.通过相变材料与墙体合理高效的结合,可充分发挥相变材料的高蓄热特性,提高墙体的热性能,达到调节室内环境温度、降低建筑能耗的目的.The encapsulation methods for phase change materials（ PCM s） in building walls including direct-mixing, macro-encapsulation, micro-encapsulation, and shape-stabilized PCM s, the kinds of PCM s and their properties are reviewed. The PCM s can be located at the wall surface or inside the wall,the effects of PCM s in both cases on the indoor environment and building energy consumption are evaluated respectively based on experiments and simulation research. The results showthat the encapsulation effects of the micro-encapsulation and shape-stabilized PCM s are better. The phase change temperatures of PCM s used in the building walls are usually 20 to 30 ℃. The optimal location of PCM s is not fixed. It is affected by the properties of PCM s,wall material,indoor environment and outdoor environment. By integrating PCM s with the building walls effectively,the high thermal storage property of PCM s can be fully developed and the thermal performance of the building walls is improved. Thus,the indoor air temperature is adjusted and the building energy consumption is reduced.

关 键 词：相变材料 建筑墙体 蓄热 节能 

分 类 号：TK124[动力工程及工程热物理—工程热物理]