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Thermal control of SUNRISE, a balloon-borne solar telescope

机译:气球式太阳望远镜SUNRISE的热控制

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摘要

SUNRISE is a balloon-borne solar telescope flown with a long-duration balloon by NASA's Columbia Scientific Balloon Facility team from Esrange (Swedish Space Corporation), on 8 June 2009. SUNRISE has been a challenging mission from the thermal point of view because of its size and power dissipation. Thus, a dedicated thermal analysis has been carried out to find a solution that allows all the devices to be kept within their appropriate temperature ranges, without exceeding the allowable temperature gradients, critical for optical devices. In this article, the thermal design of SUNRISE is described. A geometrical mathematical model and a thermal mathematical model of the whole system have been set up for the different load cases in order to obtain the temperature distribution and gradients in the system. Some trade-offs have been necessary to fulfil all the thermal requirements. The thermal hardware used to achieve it is described. Finally, the temperatures obtained with the models have been compared with flight data.
机译:SUNRISE是由Esrange(瑞典航天公司)的NASA哥伦比亚科学气球设施小组于2009年6月8日搭载的装有气球的太阳望远镜,该气球装有长时球气球。尺寸和功耗。因此,已经进行了专门的热分析以找到一种解决方案,该解决方案允许将所有设备保持在其适当的温度范围内,而不会超过光学设备的关键温度梯度。本文介绍了SUNRISE的散热设计。为了获得系统中的温度分布和梯度,已经针对不同的工况建立了整个系统的几何数学模型和热数学模型。为了满足所有散热要求,必须进行一些折衷。描述了用于实现此目标的热硬件。最后,将通过模型获得的温度与飞行数据进行了比较。

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