等热流圆管内相变微胶囊悬浮液层流换热实验研究

An experiment study ofLamiar flow heat transfer with microencapsulated phase change material suspension

中文关键词: 微胶囊悬浮液  相变 强化传热  影响因素

英文关键词: microencapsulated phase change material suspension  phase change  heat transfer enhancement  influence factors

中文摘要:

      用基液代替水来配置微胶囊相变悬浮液，并对实验数据的准确性进行了检验。在等热流密度环境下对管道内的该悬浮液进行加热实验，对相变微胶囊悬浮液的质量浓度、Ste、ML、粒径和Re等因素对影响强化换热的效果进行了分析。结果显示影响微胶囊相变悬浮液管内层流换热最主要的因素是微胶囊的质量分数和Ste。

英文摘要:

      The microencapsulated phase change material suspension is prepared using the base fluid other than the water. The heat transfer experiments of the suspension flow in the tube at constant heat flux are conducted and the accuracy of the experimental results is examined. The effect of the suspension concentration, Ste number, ML number, particle diameter and Re number on heat transfer enhancement is analyzed. It is concluded that the mass fraction of microcapsule particle and the Stephen number have the most important influence on the heat transfer of the microencapsulated phase change suspensions in laminar tube flow.