Storage and exchange thermal characteristic analysis of phase change wallboard room with different conditions  

作　　者：黄凯良 冯国会 陈其针 牛润萍 刘馨 

机构地区：[1]School of Municipal and Environmental Engineering,Shenyang Jianzhu University [2]School of Environment and Energy Engineering Beijing University of Civil Engineering and Architecture

出　　处：《Journal of Central South University》2009年第S1期154-158,共5页中南大学学报（英文版）

基　　金：Project(50878133) supported by the National Natural Science Foundation of China;Project (2007R37) supported by Excellent Talents in Liaoning Province;Project (2008S193) supported by the Key Laboratory Fund of Education Department in Liaoning Province;Project(1071211-1-00) supported by the Scientific and Technical Fund Project Subsidy of Shenyang Province

摘　　要：Based on the phase change material (PCM) thermal characteristic,some testing methods such as differential scanning calorimeter (DSC) etc were used to select the low melting mixture of capric and lauric acid as PCM of phase change wallboard (PCW). The PCW room was established,and some contrast analysis of the storage and exchange thermal characteristic of PCW room and ordinary wall room were made under different conditions. The results show that the fluctuation of indoor air temperature in PCW room is smaller than that in ordinary room obviously. The exchange energy of PCM room with outdoor is less than that of ordinary wall room. In the winter condition,PCW room utilizes valley period electricity to storage energy in the night,while releases at peak period electricity in daytime,which can divert 40% of peak load. In the summer condition,PCW room can reduce the peak cooling load by 25% compared with ordinary wall room.Based on the phase change material (PCM) thermal characteristic,some testing methods such as differential scanning calorimeter (DSC) etc were used to select the low melting mixture of capric and lauric acid as PCM of phase change wallboard (PCW). The PCW room was established,and some contrast analysis of the storage and exchange thermal characteristic of PCW room and ordinary wall room were made under different conditions. The results show that the fluctuation of indoor air temperature in PCW room is smaller than that in ordinary room obviously. The exchange energy of PCM room with outdoor is less than that of ordinary wall room. In the winter condition,PCW room utilizes valley period electricity to storage energy in the night,while releases at peak period electricity in daytime,which can divert 40% of peak load. In the summer condition,PCW room can reduce the peak cooling load by 25% compared with ordinary wall room.

关 键 词：phase CHANGE ENERGY STORAGE ENERGY PCM STORAGE and EXCHANGE thermal CHARACTERISTIC 

分 类 号：TU111[建筑科学—建筑理论]