Accession Number : AD0620650

Title :   OUT-OF-PILE THERMIONIC SPACE POWER SYSTEMS USING A GASEOUS HEAT-TRANSFER FLUID,

Corporate Author : RAND CORP SANTA MONICA CALIF

Personal Author(s) : Leonard,Anthony

Report Date : SEP 1965

Pagination or Media Count : 50

Abstract : A study of the potential of space power systems composed of a high-temperature gas-cooled reactor and outof-pile thermionic converters. Emphasis is placed on the creep-rupture problem and the optimization of the radiator-converter configuration. Expressions for thermionic-converter efficiency and power density as a function of emitter temperature and collector temperature are developed. For a system using 750-psi helium at a maximum gas temperature of 3600 1/4F, a specific mass of about 13 lb/kw is estimated, excluding power conditioner and shield masses. A 1000-psi system using neon would have a specific mass of about 17 lb/kw. (Author)

Descriptors :   (*THERMIONIC CONVERTERS, GAS COOLED REACTORS), (*SPACE PROPULSION, NUCLEAR PROPULSION), CREEP, RUPTURE, HEAT TRANSFER, HELIUM, NEON, ELECTRIC PROPULSION, OPTIMIZATION, CALCULUS OF VARIATIONS

Distribution Statement : APPROVED FOR PUBLIC RELEASE