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http://dx.doi.org/10.5139/JKSAS.2018.46.4.338

Mathematical Prediction of the Lunar Surface Temperature Using the Lumped System Analysis Method  

Kim, Taig Young (Department of Mechanical Engineering, Korea Polytechnic University)
Lee, Jang-Joon (Korea Aerospace Research Institute)
Chang, Su-Young (Korea Aerospace Research Institute)
Kim, Jung-Hoon (Korea Aerospace Research Institute)
Hyun, Bum-Seok (Korea Aerospace Research Institute)
Cheon, Hyeong Yul (Korea Aerospace Research Institute)
Hua, Hang-Pal (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.4, 2018 , pp. 338-344 More about this Journal
Abstract
The lunar surface temperature is important as a environmental parameter for the thermal design of the lunar exploration vehicles such as orbital spacecraft, lander, and rovers. In this study, the temperature is numerically predicted through a simplified lumped system model for the energy conservation. The physical values required for the analysis of the energy equation are derived by considering the geometric shape, and the values presented in the previous research results. The areal specific heat, which is the most important thermo-physical property of the lumped system model, was extracted from the temperature measurements by the Diviner loaded on the LRO, and the value was predicted by calibration of the analytical model to the measurements. The predicted temperature distribution obtained through numerical integration has sufficient accuracy to be applied to the thermal design of the lunar exploration vehicles.
Keywords
Lunar Surface Temperature; Lumped System; Areal Specific Heat;
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