氧化石墨烯强化相变材料微胶囊悬浮液光热性能研究  

STUDY ON PHOTOTHERMAL PROPERTIES OF PHASE CHANGE MICROCAPSULE SUSPENSION ENHANCED BY GRAPHENE OXIDE

作　　者：郭家志 丁玉梅[1] 安瑛[1] 尹志凡 张锋华 左夏华 Guo Jiazhi;Ding Yumei;An Ying;Yin Zhifan;Zhang Fenghua;Zuo Xiahua(College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China;Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China)

机构地区：[1]北京化工大学机电工程学院,北京100029 [2]中国科学院广州能源研究所,广州510640

出　　处：《太阳能学报》2024年第11期360-366,共7页Acta Energiae Solaris Sinica

基　　金：蛙卵仿生结构水基纳米流体光热性能及转子扰流强化集热技术研究(52176175)。

摘　　要：将片状氧化石墨烯与相变材料微胶囊进行混合,制备成光热悬浮液,对其光学性能和光热转换性能进行探究,并分析氧化石墨烯对相变材料微胶囊光热性能的影响机理。结果表明,相较于无氧化石墨烯的相变材料微胶囊悬浮液,添加氧化石墨烯的复合悬浮液的光学性能和光热转换性能均有明显提升,在0.1%的相变材料微胶囊悬浮液中添加0.03%的氧化石墨烯,使其在特定波长下的消光系数提升522.30%,添加0.1%氧化石墨烯时室内光热实验的温升和光热效率达到最高,分别为63.7℃和57.49%,在室外光热实验中温度提升59.2℃。The sheet GO was mixed with the phase change material microcapsule and prepared into a photothermal suspension,and its optical properties and photothermal conversion properties were explored and analyzed mechanism of GO effects on the photothermal properties of phase transition materials.The results show that the optical performance and photothermal conversion performance of the compound suspension are significantly improved compared with the microcapsule suspension without GO.The addition of 0.03%graphene oxide to the microcapsule suspension of 0.1%phase change material increased the extinction coefficient at a specific wavelength by 522.30%.The temperature rise and photothermal efficiency of the indoor photothermal experiments were the highest when 0.1%GO was added,which were 63.7℃and 57.49%,the temperature was increased by 59.2℃in outdoor photothermal experiments.

关 键 词：氧化石墨烯 相变材料 储热 太阳能吸收器 太阳能 太阳热 

分 类 号：TK519[动力工程及工程热物理—热能工程]