Volume 6 Issue 6
Dec.  2013
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WANG Xiang, LI Yi, YANG Xian-wei. Thermal design of solar observer at L1 Lagrangian point in Sun-Earth system[J]. Chinese Optics, 2013, 6(6): 930-938. doi: 10.3788/CO.20130606.930
Citation: WANG Xiang, LI Yi, YANG Xian-wei. Thermal design of solar observer at L1 Lagrangian point in Sun-Earth system[J]. Chinese Optics, 2013, 6(6): 930-938. doi: 10.3788/CO.20130606.930

Thermal design of solar observer at L1 Lagrangian point in Sun-Earth system

  • Received Date: 12 Sep 2013
  • Rev Recd Date: 02 Nov 2013
  • Publish Date: 10 Dec 2013
  • To ensure the temperature requirements of the solar observer working at L1 Lagrangian point, the thermal design for Lyman Coronagraphy Imager(LACI) and Lyman Disk Image(LADI) was carried out, and the heat flux of the orbit was calculated. The thermal designs of light trap, filter components, detector components, electric box, and entirety of the observer were discussed in details. By using collector panels settled in the side facing to the Sun, the active heating power could be reduced by 73%. In order to reduce the temperature gradient caused by long-term observation facing to the sun, a heat pipe was embedded in the frame. Simulation results show that all conditions meet the temperature indicator in 4 typical cases. The thermal design system with a low active power solves many problems, such as the cooling of the observer in orbit, insulation during orbital transfer phase, and meets the working temperature requirement of below -50 ℃ for a CCD plane.

     

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