Steady-state analysis of a Capillary Pumped Loop for Terrestrial Application with methanol and ethanol as working fluids
Steady-state analysis of a Capillary Pumped Loop for Terrestrial Application with methanol and ethanol as working fluids
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DOI：
10.1016/j.ijthermalsci.2018.10.036
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发表时间：
2019-03-01
影响因子：
4.5
通讯作者：
Bertin, Yves
中科院分区：
文献类型：
--
作者：
Accorinti, Flavio;Ayel, Vincent;Bertin, Yves
本文旨在研究和了解CPLTA(陆地用毛细泵送环路)在不同运行条件下的行为。这种CPL是为电力电子冷却应用而设计的，通过比较其与乙醇和甲醇作为工质的运行行为，从两个不同的角度进行了分析。通过修改热特性(蒸发器壁上施加的热流密度、储液器中的饱和温度和冷凝器入口温度)和水力特性(通过作用于设定阀以产生受控的压力损失并增加蒸汽管路中的压力损失)来实验研究流体对CPLTA的影响，以显示它们如何影响回路的行为。分析了循环的热方面，包括蒸发器电导的变化。为了得到多孔芯的热力学循环和蒸发器电导，基于多孔芯中的实际蒸发温度，使用特定的后处理工具进行了理论研究。
This paper aims to study and understand the behaviour of a CPLTA (Capillary Pumped Loop for Terrestrial Applications) in different operating conditions. This CPL, designed for power electronics cooling applications, has been analysed from two different points of view by comparing its operating behaviour with Ethanol and Methanol as working fluids. The influence of the fluids on CPLTA was experimentally explored by modifying: the thermal characteristics (applied heat flux density on the evaporator walls, saturation temperature in the reservoir and condenser inlet temperature) and the hydraulic characteristics (by acting on a setting valve to generate controlled and increasing pressure losses in the vapour line) in order to show how they impact the behaviour of the loop. Thermal aspects of the loop were analysed, including changes of evaporator conductance. To obtain the thermodynamic cycles and evaporator conductance, based on the real evaporation temperature in the porous wick, a theoretical study was conducted using a specific post-processing tool.