Experimental assessment on a kind of composite wall incorporated with shape-stabilized phase change materials (SSPCMs)
作者： Xu Wang , Hang Yu , Lu Li , Mei Zhao
DOI: 10.1016/J.ENBUILD.2016.07.031
关键词:
摘要: Abstract This research aimed to evaluate a kind of innovative composite-PCMs wall applicable in hot summer and cold winter regions. A shape-stabilized PCMs constituted expanded graphite, high-density polyethylene paraffin wax was incorporated into cement mortar prepare PCMs-bricks; mass percentage the SSPCMs 40%. Mechanical strength bricks optimized. Two walls with dimension 1.5m × 1.5 m composed PCMs-bricks, regular vitrified bricks, respectively were built tested medium-scale thermal chamber under different testing cases. Average compressive bending strengths PCMs-bricks 5.11 MPa 3.70 MPa, respectively, so only buildings frame structure bear load. Results showed that heat capacity obviously greater than from 18 °C 25 °C. The PCMs-wall phase change temperature range mid-season conditions, exhibited excellent performance. But cases, would never experience demonstrate vulnerable behavior. Additionally, serious evaporative leakage observed, it is pointed out preparation method should be modified developed settle problem.
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