化工进展 ›› 2021, Vol. 40 ›› Issue (S2): 265-278.DOI: 10.16085/j.issn.1000-6613.2021-0482

• 材料科学与技术 • 上一篇    下一篇

多孔纳米基复合相变材料在建筑节能中的应用进展

舒钊1(), 钟珂1, 肖鑫1,2(), 贾洪伟1, 吕凤勇3, 常沙4   

  1. 1.东华大学环境学院空气环境与建筑节能研究所,上海 201620
    2.上海污染控制与生态安全研究院,上海 200092
    3.上海应用技术大学城市建设与安全工程学院,上海 201418
    4.天津市建筑工程学校,天津 300221
  • 收稿日期:2021-03-10 修回日期:2021-04-07 出版日期:2021-11-12 发布日期:2021-11-12
  • 通讯作者: 肖鑫
  • 作者简介:舒钊(1998—),男,硕士研究生,研究方向为建筑蓄能。E-mail: 2201969@mail.dhu.edu.cn
  • 基金资助:
    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)

Recent progress in application of composite phase change materials with nanoparticles matrix for energy savings of buildings

SHU Zhao1(), ZHONG Ke1, XIAO Xin1,2(), JIA Hongwei1, LYU Fengyong3, CHANG Sha4   

  1. 1.Institute of Air Environment and Building Energy Conservation, School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
    2.Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
    3.College of Urban Construction and Safety Engineering, Shanghai Institute of Technology, Shanghai 201418, China
    4.Tianjin Construction Engineering School, Tianjin 300221, China
  • Received:2021-03-10 Revised:2021-04-07 Online:2021-11-12 Published:2021-11-12
  • Contact: XIAO Xin

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。

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

Abstract:

In recent years, more attention has been paid to the development and application of phase change materials (PCMs). It has been shown that nanoparticles and porous media can significantly improve the thermal conductivities and thermal stabilities of PCMs, and can prevent the leakage of PCMs during the processes of melting and solidification. In the present study, the selection of nano and porous composite phase change materials (CPCMs) in the field of building were introduced firstly, then the characterization and measurement of thermal physical properties of the CPCMs were studied. The thermal properties of mortar, gypsum board, concrete and brick mixed with CPCMs were investigated subsequently. The applications of the CPCMs in building systems were studied experimentally and numerically, 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 thermal conductivities should be chosen according to the regional climates and requirements. The addition of PCM wallboard can improve the thermal comfort and reduce energy consumption effectively. Subsequently, the main research directions have been pointed out, including the combination of PCM wallboard and active technology, the reduction of the recycling life of PCM wallboard, and the thermal performance PCM wallboard after long-term usage.

Key words: nanomaterial, porous media, composite phase change material, building energy saving, numerical calculation

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