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Heat Pipe Science and Technology, An International Journal

ISSN Imprimir: 2151-7975
ISSN On-line: 2151-7991

Archives: Volume 1, 2010 to Volume 8, 2017

Heat Pipe Science and Technology, An International Journal

DOI: 10.1615/HeatPipeScieTech.v5.i1-4.660
pages 571-578

EXPERIENCE OF SPACE APPLICATION OF AXIAL GROOVE HEAT PIPES WITH Ω-SHAPE GROOVES

Konstantin Goncharov
Federal State Unitary Enterprise "Scientific Production Association named after S. A. Lavochkin", 24 Leningradskoe Highway, Khimki, Moscow region, Russia
V. Antonov
UTAIS Limited, 141400, Engelsa street 17, Khimky, Moscow Region, Russia
Y. Vinokurov
Shanghai Khrunichev State Research and Production Space Center, 18, 121087 Moscow, Russia

RESUMO

Among the specialists in the field of development of heat pipes with negative porosity gradient there is a stable opinion that such HP cannot operate reliably. Results of on-ground and flight tests of the heat pipes with negative porosity gradient are presented in this paper. Axial groove heat pipes (AGHPs) are widely used on board Russian space crafts. Experience of AGHPs application on board the spacecraft "KazSat", "KazSat2", "Express-MD1" and "Express-MD2" is presented in this paper. Thermal control systems (TCS) of these SC are based on application of Ammonia AGHPs with Ω-shape grooves and instrument panels with embedded AGHPs. Analysis of SC thermal in-orbit environment proved stability of AGHPs performance and AGHPs interfaces. During SC operation there was detected inessential temperature increasing of emissive instrument panels due to degradation of glass thermal optical coating parameters. AGHPs parameters are presented in this paper.


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