热端温度对高频微型同轴脉冲管制冷机性能的影响及其在空间技术中的应用研究

EFFECT OF THE HOT END TEMPERATURE ON THE PERFORMANCE OF THE HIGH FREQUENCY CO-AXIAL PULSE TUBE REFRIGERATOR

本文用数值方法对热端温度对微型高频同轴脉冲管制冷机性能的影响进行了分析，并将其与实验结果进行了比较，随着热端温度的升高，制冷机的最低制冷温度单调升高，制冷量单调减少，试验结果与数值计算结果定性相符。在此基础上，探讨了高频微型同轴脉冲管制冷机和辐射制冷器相结合在空间飞行器中的应用，提出了两种应用模式，用数值方法对之进行了分析。

The numeric simulations and experiments have been adopted to analyze the effect of the hot end temperature on the performance of the high frequency co-axial pulse tube refrigerator. The performance of the refrigerator deteriorates when the temperature at the hot end of the pulse tube refrigerator increases. The simulated result has been compared with the experimental result, and they are qualitatively consistent. On the basis of this analysis, we discuss the application of the high frequency co-axial pulse tube refrigerator combined the radiant cooler in spacecraft.