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月面巡視探測(cè)器太陽(yáng)帆板熱電耦合仿真計(jì)算

Numerical simulation for thermo-electrical coupling on solar panels of a lunar rover

  • 摘要: 文章建立了月面巡視探測(cè)器太陽(yáng)帆板熱電耦合計(jì)算模型,制定了太陽(yáng)帆板的對(duì)日定向方案和輸出電能分配方案,通過(guò)數(shù)值模擬獲得了月面白晝期間太陽(yáng)帆板的溫度及電能輸出,分析了太陽(yáng)帆板背面包覆隔熱材料前后及帆板是否對(duì)日定向等方案的計(jì)算結(jié)果。計(jì)算表明,當(dāng)帆板不對(duì)日定向時(shí)其背面包覆隔熱材料對(duì)其溫度場(chǎng)及電能輸出無(wú)明顯影響,對(duì)日定向時(shí)帆板溫度隨時(shí)間的分布規(guī)律發(fā)生了明顯改變,此時(shí)帆板背面包覆隔熱材料使其溫度明顯上升,但帆板頂面與背面的溫差減小。

     

    Abstract: A thermo-electrical coupling simulation model is established for calculations of thermoelectricity on solar panels of a lunar rover. There are two configurations of solar panels, one is for the orientation of the rover related to the Sun and the other is for power supply. Through numerical simulation the temperature and power output of the solar panel are calculated during the lunar daytime. The results with or without insulating materials covered on backside of the solar panel and with its orientation pointing to the Sun or not are analyzed. It is shown that the effects of the insulating materials on backside of the solar panel on the temperature and power output are not significant when the solar panel is not oriented to the Sun. But temperature distributions with time are greatly affected when the solar panel points to the Sun. Under that condition, temperature rises, because of insulating materials on backside, but the temperature difference between front side and backside of the solar panel decreases.

     

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