Accession Number : ADA339004

Title :   Summary and Evaluation of the Strategic Defense Initiative Space Power Architecture Study

Descriptive Note : Technical memorandum

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER

Personal Author(s) : Edenburn, M. ; Smith, J. M.

PDF Url : ADA339004

Report Date : 01 MAR 1989

Pagination or Media Count : 419

Abstract : The Space Power Architecture Study (SPAS) identified and evaluated power subsystem options for multimegawatt electric (MMWE) space based weapons and surveillance platforms for SDI applications. Steady state requirements of <1 MMWE are adequately covered by the SP-100 nuclear space power program and hence were not addressed in the SPAS. Four steady state power systems <1 MMWE were investigated with little difference between them on a mass basis. The majority of the burst power systems utilized H2 from the weapons and were either closed (no effluent), open (effluent release) or steady state with storage (no effluent). Closed systems used nuclear or combustion heat source with thermionic, Rankine, Turbo alternator, fuel cell and battery conversion devices. Open systems included nuclear or combustion heat sources using turbo alternator, magnetohydrodynamic, fuel cell or battery power conversion devices. The steady state systems with storage used the SP-100 or Star-M reactors as energy sources and flywheels, fuel cells or batteries to store energy for burst applications. As with other studies the open systems are by far the lightest, most compact and simplist (most reliable) systems. However, unlike other studies the SPAS studied potential platform operational problems caused by effluents, vibration, etc.

Descriptors :   *NUCLEAR POWER PLANTS, *POWER SUPPLIES, *SPACE WEAPONS, SPACE SURVEILLANCE, SPACE SYSTEMS, NUCLEAR ENERGY, SPACE WARFARE, DIRECTED ENERGY WEAPONS, MAGNETOHYDRODYNAMIC GENERATORS, TURBOGENERATORS, SPACE BASED.

Subject Categories : Space Warfare
      Nuclear Fission Reactors(power)
      Directed Energy Weapons

Distribution Statement : APPROVED FOR PUBLIC RELEASE