Dynamic RPS Path to Flight

Oriti, Sal ; Schmitz, Paul

关键词: ENERGY CONVERSION EFFICIENCY;    NUCLEAR REACTORS;    POWER CONVERTERS;    RADIOISOTOPE POWER SYSTEMS;    RISK ASSESSMENT;    RISK MANAGEMENT;    SAFETY MANAGEMENT;    SERVICE LIFE;    THERMAL ENVIRONMENTS;    THERMOELECTRIC POWER GENERATION;    NASA PROGRAMS;   

RP-ID  :  GRC-E-DAA-TN61988

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

NASA Glenn Research Center has been pursuing the development of dynamic power conversion for several decades. Candidate NASA missions involve mutli-year travel to far away destinations, or to extreme environments where sunlight does not exist. Human-base mission studies also show that power needs would be beyond the capabilities of solar energy conversion, and instead would require nuclear reactor energy sources, for which the thermal energy must be converted to electricity. Dynamic power conversion technology has developed sufficiently to make a sound engineering argument that it is suitable for these NASA missions. Dynamic conversion power sources have yet to be flown in space, and thus suffer a disadvantage owing to their lack of heritage data on flight missions. One of the largest obstacles for adoption is the uncertainty in reliability of a device with moving parts. However, significant progress has been made toward demonstrating the technology capable in all relevant environments, with the necessary long life. Another hurdle for adoption is the lack of mission, which would drive specific requirements, and provide a solid timeline for technology development endpoint. Until a mission is identified, an alternative approach is necessary to advance a dynamic power conversion system towards flight.