ANALOGIC EFFECT OF LOW VACUUM AND MICROGRAVITY ON NATURAL CONVECTIVE TRANSFER OF HEAT IN GASES IN SPACE DEVICES

Abstract

Abstract: The problem of natural convective transfer of heat in gases in space devices is taken to be an objective. The Rayleigh number and Knud- sen number,which are obviously expressed as the function of temperature and pressure,two independent parameters of thermodynamics,are derived. The different situation of gaseous transfer of heat in each characteristic pressure section is analyzed. The analogic effect of low vacuum and microgravity on natural convective gaseous transfer of heat in the continuous medium flow in space devices is compared.

Key words: Spacecraft component, Vacuum, Weightlessness, Convection heat transfer, Analog simulation

Xi Risheng Wang Kang (Lanzhou Institute of Physics). ANALOGIC EFFECT OF LOW VACUUM AND MICROGRAVITY ON NATURAL CONVECTIVE TRANSFER OF HEAT IN GASES IN SPACE DEVICES[J]. .

[1]	PANG Le, SUN Jingwen, ZHAO Kaixuan, DAI Shanliang, LIU Gang, PENG Cong. Exprimental study on thermal conductivity enhancement technique for space carbonfiber shell structure [J]. , 2019, 39(2): 13-18.
[2]	GENG Jinyue, ZHOU Siqi, XIA Guangqing, CHEN Jun, SHEN Yan. Magnetic circuit design for micro cathode arc thrusters [J]. , 2018, 38(5): 72-80.
[3]	WANG Fei-Peng, ZHANG Tao, WEN Gang, FAN Fan, LI Jian, CUI Wan-Zhao. Effectofspacechargeonsurface-breakdownbehaviorofpolytetrafluoroethylene [J]. , 2017, 37(2): 28-34.
[4]	CHEN Ya-Rong, HU Feng-Da, GAO Wei-Na, YANG Meng. New Fluxless Vacuum Soldering Process Using Plasma Cleaning in Power Modules [J]. , 2011, 31(3): 71-75.
[5]	Jiao Zilong1 Pang Hewei2 Yi Zhong1 Yang Dongsheng1 Zang Weiguo1 Yu Qian1(1 Center of Assembly,Integration and Test,China Academy of Space Technology,Beijing 100094)(2 China Academy of Space Technology,Beijing,100094). Identification of Molecular Contaminant in Thermal Vacuum Test by Using GC/MS [J]. , 2008, 28(06): 64-67.
[6]	Wang Juan Zhuang Damin Wang Jun(Beijing University of Aeronauics and Astronautics,Beijing 100083). Design and Simulation of Medium Scale Space Environment Simulator Vacuum System [J]. , 2007, 27(05): 21-26.
[7]	Zhang Lei~1 Yan Chuanwei~1 Chen Rongmin~1 Jin Yanli~2Sun Gang~3 Tong Jingyu~3 Pang Hewei~3(1 Institute of Metal Research,The Chinese Academy of Sciences,Shenyang 110016)(2 Navy Equipment Department,Militray Deputy Part to Shenyang,Shenyang 110031)(3 Beijing Institute of Spacecraft Environment Engineering,Beijing 100029). Ground-based Investigations of Vacuum Ultraviolet Radiation Behaviors of Organic Protective Coatings [J]. , 2007, 27(01): 33-40.
[8]	Jian Lujing Zhang Jiaxun(China Academy of Space Technology,Beijing 100094). Influence Analysis of the Spacing among the Apparatus and Equipments on the Flow and Heat Transfer inside the Spacelab Racks [J]. , 2006, 26(05): 50-56.
[9]	Pan Zengfu Li Guoqiang Hu Jingang (China Academy of Spacecraft Technology, Beijing 100086). Thermal Vacuum Test Method for Separate Module of a Satellite [J]. , 2005, 25(03): 40-45+65.
[10]	Zhao Lanping(Tongji University, Shanghai 200092) Xu Lie(Shanghai Jiao Tong University, Shanghai 200030). Experimental Research on the Heat Transfer Between the Solid Interfaces at Low Temperatures and Vacuum [J]. , 2003, 23(01): -.
[11]	Jia Yang Wang Yirong Hao Yaxin Zheng Lide (Beijing Institute of Spacecraft Environment Engineering, Beijing 100029). The Realization of Temperature Varying Speed in Thermal Vacuum Test [J]. , 2002, 22(03): -.
[12]	Huang Bencheng Chen Jinming Qi Yan Su Wen Huang Wei (Beijing Institute of Spacecraft Environment Engineering, Beijing 100029). Vacuum Chamber Design [J]. , 2002, 22(03): -.
[13]	Pang Hewei Huang Bencheng Qian Beixing Jia Yang (Beijing Institute of Spacecraft Environment Engineering, Beijing 100029). Vacuum Thermal Test Technology for Large Spacecraft [J]. , 2002, 22(03): -.
[14]	Zhang Chunyuan Huang Wei Shao Rongping Ru Xiaoqin Xu Zhongxu (Beijing Institute of Spacecraft Environment Engineering,Beijing 100029)$$$$. Design of Vacuum System [J]. , 2002, 22(03): -.
[15]	Liu Guoqing Huang Bencheng (Beijing Institute of Spacecraft Environment Engineering, Beijing 100029)$$$$. Study on Large Scale Cryo-Pumping System [J]. , 2002, 22(03): -.

ANALOGIC EFFECT OF LOW VACUUM AND MICROGRAVITY ON NATURAL CONVECTIVE TRANSFER OF HEAT IN GASES IN SPACE DEVICES

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments