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Two-phase central thermal control system of the Russian segment of the international space station "Alpha".

Author(s) : GRIGORIEV Y. I., CYKHOTSKY V. M., SEMENTSOV A. N., et al.

Summary

The International Space Station Alpha Russian Segment (ISSA RS) presents an assembly of many modules with total heat load up to 30 kilowatts. Collection, transport and rejection of heat in outer space will be provided by central thermal control system (TPS). The TPS is being designed and built by Rocket-Space Corporation "Energia", Russia. The TPS design concept is commonly referred to as a "thermal bus" concept, when single-phase thermal control systems of individual modules are connected with central TPS through evaporative heat exchangers. Pump forces liquid coolant to pressure line, where it is fed to evaporative heat exchangers through actively controlled flow control valves if necessary. The flow control valves maintain high ammonia vapor quality at the evaporative heat exchanger exit. Vapour gets condensed in condensers of heat pipe-based central exchanger-radiator. Then, the heat is distributed all over the radiator heat exchanger due to heat pipes. A complete scheme of the facility is given. Control principles are described.

Details

  • Original title: Two-phase central thermal control system of the Russian segment of the international space station "Alpha".
  • Record ID : 2000-2777
  • Languages: English
  • Source: Proceedings of the international workshop on non-compression refrigeration and cooling.
  • Publication date: 1999/06/07
  • Document available for consultation in the library of the IIR headquarters only.

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