热水器用相变储热材料的研究进展

发布时间：2019-04-12 18:55

【摘要】：相变材料(phase change material,PCM)具有较高的潜热值,储热密度大,且能近似等温的储、放热,可提高系统的稳定性和效率。本文针对热水器的应用背景,阐述了相变储热材料的遴选原则,分析了热水器用有机类、无机类相变储热材料的特点及性能,介绍了有机类相变储热材料强化换热的方法及无机类相变储热材料克服过冷及相分离的方法。在此基础上,重点分析了相变储热材料在太阳能热水器和热泵热水器中的应用情况,最后指出了相变材料在热水器中的合理布置中存在的问题,提出未来在相变储热材料的性能优化、相变材料与热水器的结合形式优化、太阳能热水器与热泵热水器的有效组合方面需要进一步探索。
[Abstract]:Phase change material (phase change material,PCM) has high latent heat value, high heat storage density, and can approximate isothermal storage and exothermic, which can improve the stability and efficiency of the system. According to the application background of water heater, the selection principle of phase change heat storage materials is expounded, and the characteristics and properties of organic and inorganic phase change heat storage materials for water heaters are analyzed. The methods of strengthening heat transfer of organic phase change heat storage materials and the methods of overcoming supercooling and phase separation of inorganic phase change heat storage materials are introduced. On this basis, the application of phase change storage material in solar water heater and heat pump water heater is analyzed emphatically. Finally, the problems existing in the rational arrangement of phase change material in water heater are pointed out. It is pointed out that the performance optimization of phase change heat storage materials, the optimization of the combination of phase change materials and water heaters, and the effective combination of solar water heaters and heat pump water heaters need to be further explored in the future.
【作者单位】：宁波大学海运学院;
【基金】：国家自然科学基金(51206083) 浙江省自然科学基金(LY17E060001) 浙江省公益性技术应用研究项目(2012C21063) 浙江省教育厅项目
【分类号】：TB34

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