Design point characteristics of a 500 - 2500 watt isotope-Brayton power system

Abstract

An analytical study was conducted to investiigate the potential performance characteristics ofJan isotope-Brayton space power system at electric | 'power levels from 500 -2500 watts. Utilization ofI the Pu 238 heat source, or capsule, being developed for the Multi-Hundred Watt Radioisotope Thermoelectric Generator (MHW-RTG) was assumed. A singleloop system design concept.was selected. The design concept and results of first-order trade-off studien of the effects of major system parameters 'on system performance are presented. Results of the study :indicate the potential for high system efficiency .and high specific power over the entire power range