蒸发器
毛细管作用
热力学
材料科学
传热
回路热管
工作液
热管
机械
传质
热流密度
有限元法
多孔介质
制冷剂
多孔性
复合材料
热交换器
物理
作者
Riadh Boubaker,Vincent Platel,Alexis Berges,Mathieu Bancelin,Édouard Hannezo
标识
DOI:10.1016/j.applthermaleng.2014.10.009
摘要
This paper presents a numerical study of a Capillary Pumped Loop evaporator. A two-dimensional unsteady mathematical model of a flat evaporator is developed to simulate heat and mass transfer in unsaturated porous wick with phase change. The liquid–vapor phase change inside the porous wick is described by Langmuir's law. The governing equations are solved by the Finite Element Method. The results are presented then for a sintered nickel wick and methanol as a working fluid. The heat flux required to the transition from the all-liquid wick to the vapor–liquid wick is calculated. The dynamic and thermodynamic behavior of the working fluid in the capillary structure are discussed in this paper.
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