Accession Number : ADA339023

Title :   Mass and Performance Estimates for 5 to 1000 kW(e) Nuclear Reactor Power Systems for Space Applications

Corporate Author : SANDIA NATIONAL LABS ALBUQUERQUE NM

Personal Author(s) : Cropp, Louis O. ; Gallup, Donald R. ; Marshall, Albert C.

PDF Url : ADA339023

Report Date : 01 DEC 1990

Pagination or Media Count : 76

Abstract : Masses and radiator areas of typical space nuclear power concepts are estimated as a function of the continuous electrical power required during a ten year mission. Results are presented as a function of power level in the range of 5 to 1000 kW electrical. Three general reactor types will be discussed: (1) the radiatively cooled Star-C reactor technology with thermionic conversion external to the core; (2) liquid metal cooled technology with pin type thermionic fuel element conversion in the core; and (3) the liquid metal cooled SP-100 reactor technology with thermoelectric, Brayton, Stirling, and Rankine conversion systems. Mass estimates include all satellite subsystems except the payload itself. Area estimates include radiators to dump waste heat from the power conversion, power conditioning, power transmission, and reactor control subsystems but not the payload. All system components utilize near term technology with the exception of the SP-100 Rankine and refractory Stirling concepts.

Descriptors :   *THERMIONIC POWER GENERATION, *LIQUID METAL COOLED REACTORS, *SPACECRAFT NUCLEAR PROPULSION, SPACE TECHNOLOGY, SPACE SYSTEMS, ENERGY CONVERSION, ARTIFICIAL SATELLITES, NUCLEAR POWER PLANTS, STIRLING CYCLE, RANKINE CYCLE, UNINTERRUPTABLE POWER GENERATION, BRAYTON CYCLE.

Subject Categories : Nuclear Propulsion
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE