Considering the continually rising tendency of the power densities of nano-satellite, MEMS (micro electro mechanical systems)based pumped liquid microchannel cooling system was introduced. Dynamical thermal response model for the temperature changes of both the controlled object and the cooling device was built up by means of the lumped parameter method with reasonable analysis and logical simplification. Based on the nanosatellite inorbit case, the variation rule of the internal electronic equipment and external radiator surfaces were performed by the numerical simulation and calculation. Simulation results indicate that MEMS based on the microchannel cooling system can satisfy the cooling requirements of nano satellite thermal system with high heat flux; the external space heat flux has less affect to the radiator of nano satellite compared with the internal equipment; the modeling methods and algorithm is convenient and reasonable not only for the dynamical temperature calculation and the analysis of nano satellite, but also for the developing of advanced nano-satellite thermal control and thermal management theories and technologies.
������,�����.�������ȿ��Ƽ���——ԭ����Ӧ��[M].����: �й���ѧ����������,2007:113-115 Hou Zengqi, Hu Jingang. Thermal control—theory and applications [M]. Beijing: Chinese Technology Press, 2007:113-115(in Chinese)
Gilmore D G. Spacecraft thermal control handbook [M].Second Edition.E1 Segundo, California: The Aerospace Corporation Press, 2002:405-415
Volodymyr B. Micro-satellites thermal control-concepts and components[J].Acta Astronautica.2005, 56:161-170
Paris A D, Birur G C, Green A A. Development of MEMS microchannel heat sinks for micro/nano spacecraft thermal control . IMECE2002-34293,2002
Birur G C, Sur T W, Paris A D, et al. Micro/nano spacecraft thermal control using a MEMS-based pumped liquid cooling system //Carlos H M, Holger B.SPIE International Symposium on Micromachining and Microfabrication. USA: Microfluidics and BioMEMS, 2001:196-205
������,κ����,Ԭ��˫,��.�����ȿ�ϵͳ�Ķ�̬���Խ�ģ�����[J].�������պ����ѧѧ��,2005,31(3):372-374 Li Yunze, Wei Chuanfeng, Yuan Lingshuang, et al. Dynamical modeling and simulation of satellite thermal control system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005,31(3):372-374(in Chinese)
������,������,������,��.�����ǹ���Ȼ����������[J].ϵͳ����ѧ��,2007,19(14):3166-3168 Li Yunze, Ning Xianwen, Wang Xiaoming, et al. Simulation analysis of nano-satellite-s orbital thermal environment[J]. Journal of System Simulation, 2007,19(14):3166-3168(in Chinese)