建筑领域是能源消耗和二氧化碳排放大户,研究建筑被动节能技术是有效解决方式之一。其中矿物基相变材料因其良好的热性能、储能效果和成本优势被广泛研究。介绍了相变材料的分类、热性能、选择、封装及矿物特点,阐述了多种矿物基相变材料在围护结构中的应用进展。应用表明,使用矿物作为载体提高了相变材料热稳定性、导热性,有效解决了相变材料泄露问题。将矿物基相变材料应用于围护结构可以维持室温相对稳定,减少供暖空调负荷,降低能源消耗。
There is large energy consumption and carbon dioxide emission in building field,and research on building passive energy conservation technology is one of the effective solutions.Among them,mineral-based phase change materials (PCMs) have been widely studied because of their good thermal properties,energy storage effect and cost advantages.The classification,thermal performance,selection,encapsulation and mineral characteristics of phase change materials were introduced.The application progress of many kinds of mineral-based phase change materials in building enclosures was described.The application analysis showed that the use of mineral as carrier could improve the thermal stability and thermal conductivity of PCMs,and effectively solve the problem of leakage of PCMs.The application of mineral-based PCMs to building enclosure could stabilize room temperature relatively,reduce heating and air conditioning load,and lower energy consumption.
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基金资助
江西省自然科学基金项目(20192BAB206040);江西省教育厅科学技术研究项目(GJJ180459)
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