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| 摘要: |
| 试验研究了不同掺量石蜡与水泥砂浆混合后制备的相变墙的热性能,并与普通水泥砂浆墙进行了对比.结果显示:相变墙表面温度低于普通墙,且温度变化平缓、波动小;通过相变墙的热流远小于普通墙,且变化平缓、波动小,热流产生延迟;石蜡掺量小于5%(质量分数)时,相变墙无石蜡渗透析出,即该掺量对其在墙体中的应用是可行的.试验结果为相变墙体的应用提供了参考和依据. |
| 关键词: 相变墙体 热性能 水泥砂浆 |
| DOI： |
| 分类号:TU551 |
| 基金项目:北京市委组织部优秀人才培养资助项目，北京市供热、供燃气、通风及空调工程重点实验室资助项目，北京市教委科技发展项目，北京市属市管高校人才强教计划? |
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| Effect of Phase Change Paraffin on Thermal Performance of Cement Wall |
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YAN Quan-ying LIANG Chen ZHANG Lin
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| Abstract: |
| Thermal performance of cement wall containing phase change material consisting of paraffin and grout were studied.Energy saving effect and feasibility of phase change material walls were studied by comparison with traditional walls.The surface temperature of phase change wall is lower than that of common wall.The temperature changes more gently and the temperature fluctuation is less.The thermal flow via phase change wall is far less than that via common wall,and changes gently.Thermal fluctuation is less,a... |
| Key words: phase change material wall thermal performance grout |
