中文摘要：

本文通过对高温热管吸热器国内外研究现状进行分析,提出针对空间站太阳能热动力发电系统,设计及研制钠钾合金高温热管吸热器,分析在不同轨道周期下热管吸热器蓄热单元蓄/放热性能,具体分析日照期高温热管正常运行下相变材料容器的蓄热性能,阴影期相变材料容器释放潜热后对高温热管的启动作用,分析PCM容器与高温热管之间的耦合传热,研究钠钾合金高温热管吸热器PCM容器与钠钾合金高温热管之间相变耦合机理及相变材料容器在钠钾合金热管作用下的空穴抑制机理,对于空间站太阳能发电上的技术应用具有十分重要的意义。

英文摘要：

In this paper, domestic and foreign research present situation of high-temperature heat pipe receiver was analyzed. With Na-K alloy high temperature heat pipe receiver used as heat absorption for space solar dynamic power generation system, the mechanism of void cavity suppression and phase change coupling for Na-K alloy high temperature heat pipe receiver will be explored. The mechanism of void cavity suppression under the action of heat pipe will be revealed. And the start-up characteristics of high temperature heat pipe under the action of phase change material canister after releasing the latent heat during eclipse periods will be detailedly studied too. The phase change coupling mechanism between thermal storage canister and Na-K alloy high temperature heat pipe will be revealed. The research can offer the scientific base for the application of high temperature phase change thermal storage in aerospace.