石蜡/纳米铝在蓄能换热器中的热性能研究  

Experiment about thermophysical property of paraffin/nano Al in the heat exchanger

作　　者：陈杨华[1] 杨皓月[1] 郭文帅[1] 王麟康 徐宏政 

机构地区：[1]南昌大学机电学院,南昌330000

出　　处：《化工新型材料》2016年第5期203-205,共3页New Chemical Materials

基　　金：江西省科技支撑计划项目(12003005)

摘　　要：选用螺旋管换热器作为蓄能装置,研究了石蜡类相变材料RT6在螺旋盘管中的蓄能过程,针对其导热系数低,蓄能时间长的缺点,采用纳米铝粉制备复合材料强化换热,利用计算流体动力学数值模拟软件(Fluent)对传热过程进行数值模拟,分析了RT6在自然对流条件下以及强化后的相变过程、纳米流体石蜡/纳米铝的热物性,与实验值进行对比,优化设计方案。The heat exchanger of spiral coils used as an energy storage device and heat transfer of RT6 was investigated.However low thermal conductivity and long storage time were restriction in engineering application.Then nano Al powders/RT6 CPCM were prepared and heat conduction was significantly enhanced.The numerical results of the model were compared with the data from the experiments,the best design plan under different working conditions was determined.

关 键 词：螺旋盘管 相变材料 石蜡/纳米铝 热性能 数值模拟 

分 类 号：TB34[一般工业技术—材料科学与工程]