化工学报2019，Vol.70Issue(3)：1188-1197,10.DOI:10.11949/j.issn.0438-1157.20180895
氧化石墨烯/石蜡复合相变乳液的制备及对流传热特性
Preparation and heat transfer characteristics of GO/paraffin composite phase change emulsions
摘要
Abstract
To improve the heat transfer performance of paraffin phase change emulsion, GO/paraffin composite phase change emulsion was prepared by adding graphene oxide (GO) and its properties were characterized. The flow resistance and convection heat transfer test rig were set up, and the flow resistance characteristics and convective heat transfer characteristics of paraffin phase change emulsion and GO/paraffin composite phase change emulsion were comparatively studied. The results show that the composite phase change emulsion shows good stability due to the hydrophilicity of GO. When the mass fraction of GO is 0.01％, 0.02％, and 0.03％, the thermal conductivity of the composite phase change emulsion increases by 20.01％, 30.50％, and 35.18％, respectively. The flow resistance of the GO/paraffin composite phase change emulsion increases slightly compared to that of paraffin phase change emulsion. The straight pipe section increased by 6.70％, and the 90° elbow section increased by 13.20％. The convective heat transfer coefficient increases with the increase of GO concentration. The maximum convective heat transfer coefficient was increased by 43.90％ at the GO addition amount of 0.03％.关键词
相变/乳液/纳米粒子/传热/氧化石墨烯Key words
phase change/emulsions/nanoparticles/heat transfer/graphene oxide分类
通用工业技术引用本文复制引用
刘小诗,邹得球,贺瑞军,马先锋..氧化石墨烯/石蜡复合相变乳液的制备及对流传热特性[J].化工学报,2019,70(3):1188-1197,10.基金项目
浙江省自然科学基金项目(LY17E060001) （LY17E060001）
宁波市自然科学基金项目(2017A610019) （2017A610019）
国家自然科学基金项目(51206083) （51206083）
