Flow and heat transfer characteristics in the porous wick condenser of CPL |
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Authors: | Qu Yi Xiaofeng Peng and Liu Tao |
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Affiliation: | 1. Department of Thermal Engineering, Tsinghua University, Beijing 100084, China 2. Department of Power Engineering, Beijing University of Astronautics and Aerospace, Beijing 100083, China |
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Abstract: | An analytical investigation has been conducted to understand the internal fluid flow and heat transfer in the condenser with porous wick of an innovative capillary pumping loop (CPL) system. A mathematical model is proposed and used to describe the flow and heat transfer, especially interfa-cial transport phenomena. The liquid-vapor interface of the condensed liquid film was numerically determined . Some factors, such as vapor pressure, wall subcooling, wall heat load and thermofluid properties, have significant influence on the heat transfer process and the shape of liquid-vapor interface. Meanwhile, an experimental facility was setup and an experimental investigation was completed. Theoretical prediction and experimental results show quite good consistence. |
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Keywords: | CPL interfacial phenomena condensation interfacial aspect liquid film heat transfer |
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