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倾斜轨道卫星外热流变化复杂,在其热控系统设计中可以考虑采用具有高换热效率的流体回路系统,而高温单相流体回路系统与常温单相流体回路系统比较,其辐射器面积更小,质量更轻。根据传热学原理,利用不同的比较方法,理论分析了高温单相流体回路系统5种不同工质对应的辐射器面积、工质流量、工质温度范围和热源的温度范围,并将计算结果与美国Jet Propulsion实验室数据进行对比,两者的较高吻合度证明了所用计算原理和方法的正确性;同时在所选5种工质中以水为最佳,并对工质水的实际应用提出见意。
Inclined orbiting satellites have a complex change of heat flow outside the heat system, so a fluid circuit system with high heat exchange efficiency can be considered in the design of its thermal control system. However, the high-temperature single-phase fluid circuit system has a smaller radiator area compared with a normal temperature single-phase fluid circuit system , The quality is lighter. According to the principle of heat transfer, different comparative methods were used to theoretically analyze the radiator area, working fluid flow rate, working fluid temperature range and heat source temperature range of five different working fluids in high temperature single-phase fluid circuit system. The calculation results Compared with the American Jet Propulsion laboratory data, the higher coincidence between the two proves the correctness of the calculation principle and method. At the same time, water is the best among the five selected working fluids and the actual water quality Application suggestions.