期刊文献+

多孔纳米基复合相变材料在建筑节能中的应用进展 被引量:16

Recent progress in application of composite phase change materials withnanoparticles matrix for energy savings of buildings
下载PDF
导出
摘要 近年来相变材料的开发和应用受到广泛的关注,研究表明,纳米和多孔基复合相变材料可以显著提高材料热导率和热稳定性,同时可以有效防止相变材料在熔融和凝固过程中发生的泄漏问题。本文主要介绍了建筑领域的纳米和多孔基复合相变材料的选择和制备、材料的表征及热物性测量研究,简述了掺入复合相变材料的砂浆、石膏板、混凝土和砖块的热性能情况,通过实验和数值模拟分析了建筑系统中的复合相变材料的应用情况,对采用了储热相变材料的建筑系统进行成本分析和节能研究。最后说明应根据地区气候和使用需求选择不同相变点和热导率的相变材料,添加相变墙体可提高热舒适性,并有效减少能耗。同时指出如何将相变墙体更好地与主动式技术结合,以及探究降低相变墙体的可回收年限和长时间使用相变墙体后的热性能是今后的主要研究方向。 In recent years, more attention has been paid to the development and application of phasechange materials (PCMs). It has been shown that nanoparticles and porous media can significantlyimprove the thermal conductivities and thermal stabilities of PCMs, and can prevent the leakage of PCMsduring the processes of melting and solidification. In the present study, the selection of nano and porouscomposite phase change materials (CPCMs) in the field of building were introduced firstly, then thecharacterization and measurement of thermal physical properties of the CPCMs were studied. The thermalproperties of mortar, gypsum board, concrete and brick mixed with CPCMs were investigatedsubsequently. The applications of the CPCMs in building systems were studied experimentally andnumerically, and the cost and energy saving potential of the building systems with latent heat storage were analyzed. Finally, it indicated that the PCMs with different phase change temperatures and thermalconductivities should be chosen according to the regional climates and requirements. The addition of PCMwallboard can improve the thermal comfort and reduce energy consumption effectively. Subsequently, themain research directions have been pointed out, including the combination of PCM wallboard and activetechnology, the reduction of the recycling life of PCM wallboard, and the thermal performance PCMwallboard after long-term usage.
作者 舒钊 钟珂 肖鑫 贾洪伟 吕凤勇 常沙 SHU Zhao;ZHONG Ke;XIAO Xin;JIA Hongwei;LYU Fengyong;CHANG Sha(Institute of Air Environment and Building Energy Conservation,School of Environmental Science and Engineering,Donghua University,Shanghai 201620,China;Shanghai Institute of Pollution Control and Ecological Security,Shanghai 200092,China;College of Urban Construction and Safety Engineering,Shanghai Institute of Technology,Shanghai 201418,China;Tianjin Construction Engineering School,Tianjin 300221,China)
出处 《化工进展》 EI CAS CSCD 北大核心 2021年第S02期265-278,共14页 Chemical Industry and Engineering Progress
基金 上海市浦江人才计划(20PJ1400200) 上海市引进海外高层次人才计划 中央高校基本科研业务费专项基金(2232021D-11) 国家自然科学基金(52006030)。
关键词 纳米材料 多孔介质 复合相变材料 建筑节能 数值模拟 nanomaterial porous media composite phase change material building energy saving numerical calculation
  • 相关文献

参考文献33

二级参考文献202

共引文献220

同被引文献146

引证文献16

二级引证文献15

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部