Infrared and Laser Engineering, Volume. 52, Issue 1, 20221395(2023)
Thermal design of Hα solar space telescope
Figures & Tables(12)
Fig. 3. Relative positions of camera heat dissipation surface and satellite solar panel
Fig. 5. Temperature analysis results of optical mechanical structure under low temperature condition
Fig. 6. Temperature analysis results of each electric box under high temperature condition
Fig. 7. Test temperature of optical element (a) and frame structure (b) under low temperature condition
Fig. 8. Temperature test results of each electric box under high temperature condition
Fig. 9. Temperature of each electric box during long term operation in orbit
Table 1. Heat source distribution of H
α solar space telescopeView tableView in ArticleTable 1. Heat source distribution of H
α solar space telescopeComponent Working power/W Operating mode Area array imaging focal plane 4.5 Short-term working of 20 min each orbit Area array imaging electric box 4.5 Spectral scanning mechanism 5 Short-term working of 20 min each orbit or continuous working of 10 h Control electric box 8 Spectral imaging focal plane 4.5 Spectral imaging electric box 4.5 Compression electric box 12 Secondary power supply 12 Total 55
Table 2. Thermal control indexes
View tableView in ArticleTable 2. Thermal control indexes
Assembly Working temperature/℃ Framework 20±4 Optical element 20±4 Focal plane 5-40 Electric box 0-45 Spectral scanning mechanism 10-30
Table 3. Thermal analysis conditions
View tableView in ArticleTable 3. Thermal analysis conditions
Working state Parameter setting Low temperature condition (1) Telescope is not in working mode; (2) Thermal control coating takes initial-life parameter； (3) Calculation date is December 21, at this time |β| angle is the smallest and the external heat flow is the smallest, the solar constant is 1322 W/m2 High temperature condition (1) Telescope works continuously for 10 h; (2) Thermal control coating takes end-of-life parameter； (3) Calculation date is September 3, at this time |β| angle is the largest and the external heat flow is the largest, the solar constant is 1412 W/m2
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Hongyu Guan, Lei Wang, Kuncheng Feng, Yanjun Xu, Fan Jiang, Chengshan Han. Thermal design of Hα solar space telescope[J]. Infrared and Laser Engineering, 2023, 52(1): 20221395
Paper Information
Category: Optical imaging
Received: Jun. 10, 2022
Accepted: --
Published Online: Feb. 9, 2023
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