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环路热管作为一种先进的两相传热设备,在航天器热控以及地面电子产品散热方面具有广阔的应用前景.基于能量平衡、压力平衡以及质量守恒建立了环路热管的稳态数学模型,并采用增值寻根法进行求解,模拟所得环路热管稳态运行温度同实验数据基本一致.基于该数学模型分析了蒸发器长度、毛细芯厚度、冷凝器管线长度、蒸汽管线长度以及液体管线长度等结构参数对环路热管稳态工作性能的影响,得出蒸发器向储液器的漏热和冷凝器有效冷凝面积是影响LHP稳态工作性能的主要因素的结论,并将作为对环路热管结构参数进行优化设计的依据.
As a kind of advanced two-phase heat transfer equipment, loop heat pipe has broad application prospects in thermal control of spacecraft and heat dissipation of ground electronic products.Based on energy balance, pressure balance and conservation of mass, steady-state mathematical model of loop heat pipe is established, And the value-added root-finding method is used to solve the problem.The simulation results show that the steady-state operating temperature of the loop heat pipe is basically the same as the experimental data.The evaporator length, capillary core thickness, condenser pipe length, steam pipe length and liquid pipeline length are analyzed based on the mathematical model The influence of structure parameters on the steady performance of loop heat pipe is deduced. It is concluded that the leakage of evaporator to receiver and the effective condensation area of condenser are the main factors affecting the steady-state performance of LHP. Structure parameters to optimize the design basis.