助力节能降碳的相变储热材料研究和应用进展

Research and Application Progress of Phase Change Thermal Energy Storage Materials for Energy Saving and Carbon Reduction

相变储热是一种发展较为成熟、工艺简单且储热密度高的储热技术,其基本恒温的蓄放热过程能减少能量品味的损失,应用前景广阔。围绕相变储热技术所涉及的关键材料,介绍了不同应用条件下各类相变材料的优缺点,综述了相变储热材料在余热回收利用、太阳能光热转化存储、储能电池热管理、建筑储热等方面的应用,着重总结了相变储热材料在减少相变过程泄漏、提高热导率、减小过冷度及腐蚀影响等方面的研究进展。鉴于储热材料有助于实现节约能源、降低碳排放的社会发展目标,有必要持续开展储热材料的研发工作,不断提高储热材料的综合性能。

Thermal energy storage by using phase change materials(PCMs)is a kind of technology with mature development,simple process and high thermal energy storage density.Its basic homothermal heat storage and release process can reduce the loss of energy quality and has broad application prospects.Focusing on the key materials involved in phase change thermal energy storage technology,this paper introduced the advantages and disadvantages of various phase change materials under different application conditions,and summarized the applications of phase change thermal energy storage materials in waste heat recovery and utilization,solar thermal conversion storage,battery thermal management,building energy conservation and so on.In addition,the research progress in preventing the leakage of PCMs during the phase change process,improving the thermal conductivity of PCMs,and reducing the supercooling and corrosion effects of PCMs were summarized.Considering that the application of thermal energy storage by using PCMs contributes to the goals of energy conservation and carbon reduction,it is necessary to continue the research and development of thermal energy storage materials and continuously improve the comprehensive properties of thermal energy storage materials.