【作者】 饶宇； 林贵平；

【Author】 RAO Yu;LIN Gui-ping;Inst. of Man-Machine-Envionment Engineer,Beijing University of Aeronautics and Astronautics;

【机构】 北京航空航天大学人机环境研究所；

【摘要】 本文论述了相变材料微胶囊在强化流体换热以及提高固体材料热特性方面的应用。在对相变材料微胶囊悬浮液管内对流换热进行了定性分析的基础上,对MEPCM复合传热流体在能量传输系统中的应用进行了数学建摸,并对以十八烷为内核的微胶囊与纯水组成的复合传热流体在能量传输系统中的应用进行了数值模拟,分析结果表明,流体的热容以及换热系数得到了很大程度的提高,系统的温度也得到有效地降低。更多还原

【Abstract】 The potential of enhancement of fluid-coupled heat exchange and solid material thermal properties.by utilizing microencapsulated phase change material(MEPCM) is presented in this paper.On the base that a qualitative analysis has beenmade for MEPCM suspension convective heat transfer within a tube,an energy transportation system utilizing MEPCM suspension as heat transfer fluid is mathematically modeled.Numerical simulation for the system operation is also presented,and the corresponding heat transfer fluid is made up of pure water and MEPCM with Ocatadecane as the core material.The result of analysis shows that enhancement of heat transfer and thermal properties,along with reduction in system temperatures,can be achieved.更多还原