| As a two-phase flow thermo-control system, the Capillary Pumped Loop (CPL), with its high efficiency, excellent dependability and good stability in temperature control, finds a wide application in many fields with high-power-density heat transfer. In order to solve the problem of pressure oscillation in the traditional CPL, a plane-plate CPL with porous elements in the condenser is introduced in this paper. Extensive investigation, both theoretical and experimental, has been carried out on the designed plane-plate CPL system. This paper is mainly about numerical calculation. Numerical methods in modeling the heat transfer behavior of multiphase-flows system, including the traditional multiphase models and modern interface tracking/capturing models, are summarized systematically and comprehensively. Some broad guidelines on choosing a model are presented, which provides methodological guidance to the numerical study of CPL components. At the same time, the original and comprehensive literature review on the application of these models also has good reference value. For the first time, an Energy of Fluid (EOF) based iterative scheme coupled with the SIMPLE algorithm is introduced to analyze the heat and mass transfer with phase change in the condenser, which is a innovation point of this paper. Simulated liquid-vapor interface is compared with the experimental one. Numerical results of the liquid-vapor interface during different inlet velocity and heat load are presented. The dynamic operational characteristic of this CPL is investigated based on the nodal method. Matlab/Simulink is employed to perform the simulation to obtain the operational parameters such as temperature and pressure during different heat loads. The simulated results are verified by experiment, showing a good accordance with the real ones and have good precision as well. The plane-plate CPL studied here demonstrates excellent performance in start-up, and has good stability during operation and adjustment process.
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