Adaptive thermal radiation design for spacecraft heat dissipation
Yanyu Chen, Tao Zhao, Chenchen Geng, Yanke Chang, Jiarui Lu, Qianqian Zhao, Yidan Chen, Hongyi Ouyang, Shuliang Dou, Jinxin Gu, Yao Li
Abstract
ABSTRACT Aerospace smart radiator devices (SRDs) offer temperature-responsive dynamic radiation cooling capabilities that are poised to revolutionize traditional spacecraft thermal management systems and enhance onboard intelligence. This paper systematically evaluates the heat transfer properties, performance, applicability, and energy-saving benefits of SRDs. Simulation results demonstrate that SRDs can reduce temperature fluctuations in geostationary satellites by up to 57% and the maximum power-saving potential can approach 90% of the optimized satellite's total power consumption. In application scenarios, flat-sat equipped with SRDs can reduce solar panel area by approximately 23%. These findings highlight the remarkable potential of SRDs to extend the feasible range of thermal control and improve the energy efficiency and sustainability of space exploration missions. Furthermore, the integration of deep learning enables an inverse determination of surface radiative properties based on thermal targets, evolving passive thermal control system design into a more efficient, flexible, and customizable paradigm.