Thermal design and analysis of a hard x-ray modulation telescope

被引：2

作者：

Zhang, H. X. ^{[1
]}

Huang, G. L. ^{[2
]}

Yang, J. ^{[3
]}

机构：

[1] Chinese Acad Sci, Thermal Control Grp, Acad Optoelect, Beijing 100080, Peoples R China

[2] Univ Arkansas, Dept Syst Engn, Little Rock, AR 72204 USA

[3] Univ W Ontario, Dept Mech Engn, London, ON N6A 5B8, Canada

来源：

JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER | 2008年 / 22卷 / 03期

关键词：

Telescopes;

D O I：

10.2514/1.34467

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Thermal control of the Hard X-Ray Modulation Telescope (HXMT) using common thermal-control hardware and thermal isolators was investigated. The thermal control hardware included thermal surface finishes, Multilayer insulation (MLI) heaters, and thermal isolator. The study covered the external top surfaces of the HXMT that faces toward space with five-layer MLI against the infrared radiations to control thermally induced structural distortion of HXMT. The 3-D numerical model of the HXMT evaluated the effects of MLI thickness and environmental heat flux variations on the HXMT component temperature and also predicted the amount of power required for heating detector cells and all these were calculated using a numerical software Thermal Desktop. Overall thermal control was obtained by balancing the energy (270°C) emitted by the telescope to cold space.

引用

页码：528 / 530

页数：3