光热转换材料在相变储能领域的研究进展
Research progress on photothermal conversion materials for phase change energy storage
李紫琪 1林琳 1张健 2王卿平 1徐博 3张强1
作者信息
- 1. 北华大学 吉林省木质材料科学与工程重点实验室,吉林 吉林 132013
- 2. 北华大学 理学院,吉林 吉林 132013
- 3. 燕山大学 先进锻压成形技术与科学教育部重点实验室,河北 秦皇岛 066004
- 折叠
摘要
相变储能是热储能的一种,即利用相变材料的储热特性来储存或释放热量,达到调控温度的效果.但相变材料往往不具备光吸收能力,不能及时收集太阳光,导致其光热转换效率较低.将相变材料与光热转换材料复合,可在增强吸光能力的同时将获得的能量存储在相变材料中,赋予复合相变材料高光热转换能力.该文对光热转换材料进行了分类,介绍了其光热转换机理、对紫外光-可见光-近红外光的吸收能力以及在相变领域的应用.此外,还阐述了光热复合相变材料的复合策略,包括浸渍法、溶胶-凝胶法、涂层法和改性微胶囊法,分析表明,不同复合策略下制备的光热复合相变材料的光吸收能力、导热系数、光热转换效率几乎都得到了提高.因此,将光热转换材料拓展到相变储能领域,将进一步优化太阳能资源.
Abstract
Phase change energy storage,a type of thermal energy storage,uses the heat storage characteristics of phase change materials to store or release the heat so as to achieve temperature regulation.However,phase change materials often lack the ability to absorb light and cannot collect sunlight in time,resulting in low photothermal conversion efficiency.The combination of phase change material and photothermal conversion material can obtain higher light absorption capacity and store the energy obtained in the phase change materials,leading to high photothermal conversion ability of the composite phase change material.Here,the classification of photothermal conversion materials,as well as their photothermal conversion mechanism,absorption capacity of UV-Vis-NIR light and application in the field of phase transition were introduced.In addition,the composition strategies of photothermal composite phase change materials,including impregnation method,sol-gel method,coating method and modified microcapsule method were described,and it was found that the optical absorption capacity,thermal conductivity and photothermal conversion efficiency of photothermal composite phase change materials prepared under different composite strategies were all improved.Therefore,the expansion of photothermal conversion materials into phase change energy storage will further optimize solar energy resources.
关键词
相变材料/光热转换材料/光热复合相变材料/复合策略/光热转换效率Key words
phase change materials/photothermal conversion materials/photothermal composite phase change materials/composite strategies/photothermal conversion efficiency引用本文复制引用
基金项目
国家自然科学基金项目(32001260)
国家自然科学基金项目(12104015)
吉林省科技发展计划项目(20210203171SF)
出版年
2024
NETL
NSTL
维普
万方数据