改善石蜡相变材料导热性能的研究进展

近年来石蜡作为一种相变储能材料受到越来越多的关注,由于石蜡PCM本身的导热系数偏低,导致储能系统在吸热或放热过程中的有效热率极低,热量无法快速有效地进行存储和释放。因此,提高石蜡PCM的导热系数成为了近年来的研究重点。主要从翅片结构、组合相变材料、复合相变材料、相变材料微胶囊化这几个方面总结了在改善石蜡PCM导热性能方面的国内外研究状况。

Research Progress in Improving Thermal Conductivity of Paraffin PCM

In recent years, paraffin as a phase change material received more attention. Thermal conductivity of paraffin phase change materials is low, which leads to low effective rate of heat of the energy storage system during storing and releasing thermal energy, the heat can’t be stored and released quickly and efficiently. Therefore, improving thermal conductivity of paraffin phase change materials become a research emphasis. In this paper, the research situation of improving thermal conductivity of paraffin phase change materials at home and abroad were summarized from several aspects, such as fin structure, multiple phase change materials, composite phase change materials and microencapsulated phase change materials.