Reducing temperature swing of space objects with temperature-adaptive solar or radiative coating
Reducing temperature swing of space objects with temperature-adaptive solar or radiative coating
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DOI：
10.1016/j.xcrp.2022.101066
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发表时间：
2022-10-19
影响因子：
8.9
通讯作者：
Wu, Junqiao
中科院分区：
文献类型：
--
作者：
Dong, Kaichen;Tseng, Derick;Wu, Junqiao
由于外层空间缺乏大气来中和温度，没有热控制的物体会经历巨大的温度波动。有效的温度管理技术（TMTs）对于避免极端热条件造成的不良影响至关重要。然而，现有的高性能tmt给航天器有限的质量和功率预算带来了额外的负担。最近，温度自适应太阳能涂层（TASCs）和温度自适应辐射涂层（TARCs）作为一种新型的轻质、无能量的地面物体温度调节方法出现，具有优异的热性能。在这里，我们模拟并展示了tasc和tarc作为未来空间物体被动TMTs的巨大潜力。对一颗地球同步卫星的案例研究表明，即使在日食发生的轨道周期内，其内部温度波动也小至20.3摄氏度至25.45摄氏度。这些发现为TASCs和TARCs在空间中的优越性能提供了见解，并将促进其在地外任务中的应用。
Lacking the atmosphere for temperature neutralization, objects in outer space without thermal control undergo large temperature swings. Effective temperature management technologies (TMTs) are essential to avoid undesirable effects caused by extreme thermal conditions. However, existing high-performance TMTs impose additional burden on the limited mass and power budgets of spacecrafts. Very recently, temperature-adaptive solar coatings (TASCs) and temperature-adaptive radiative coatings (TARCs) emerged as novel light-weight, energy-free temperature-regulation approaches for terrestrial objects with excellent thermal performance. Here, we simulate and present the great potential of TASCs and TARCs as future passive TMTs for space objects. A case study of a geosynchronous satellite with body-mounted solar panels covered by TARC exhibits an interior temperature swing as small as 20.3 degrees C-25.45 degrees C in an orbital period even with solar eclipses. These findings provide insight into the superior performance of TASCs and TARCs in space and will promote their application in extraterrestrial missions.