To investigate and mature space based nuclear power conversion technologies NASA awarded several contracts under Prometheus, the Nuclear Systems Program. The studies described in this paper were performed under one of those contracts, which was to investigate the use of a nuclear power conversion system based on the closed Brayton cycle (CBC). The conceptual design effort performed included BPCS (Brayton power conversion system) trade studies to minimize system weight and radiator area and advance the state of the art of BPCS technology. The primary requirements for studies were a power level of 100 kWe (to the PPU), a low overall power system mass (with a target of less than 3000 kg), and a lifetime of 15 years (10 years full power). For the radiation environment, the system was to operate in the generic space environment and withstand the extreme environments within the Jovian system. The studies defined a BPCS design traceable to NBP (Nuclear Electric Propulsion) requirements and suitable for future potential missions with a sound technology plan for TRL (Technical Readiness Level) advancement identified. The studies assumed a turbine inlet temperature ∼ 100C above the current the state of the art capabilities with materials issues identified and an approach for resolution developed. Analyses and evaluations of six HRS (heat rejection subsystem) concepts and PMAD (Power Management and Distribution) architecture trades will be discussed in the paper.
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6 February 2005
SPACE TECHNOLOGY AND APPLICATIONS INT.FORUM-STAIF 2005: Conf.Thermophys in Micrograv;Conf Comm/Civil Next Gen.Space Transp; 22nd Symp Space Nucl.Powr Propuls.;Conf.Human/Robotic Techn.Nat'l Vision Space Expl.; 3rd Symp Space Colon.; 2nd Symp.New Frontiers
13-17 February 2005
Albuquerque, New Mexico (USA)
Research Article|
February 06 2005
Brayton Power Conversion System Study to Advance Technology Readiness for Nuclear Electric Propulsion — Phase I
Patrick E. Frye;
Patrick E. Frye
1The Boeing Company, P.O. Box 7922, Canoga Park, CA, 91309
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Robert Allen;
Robert Allen
1The Boeing Company, P.O. Box 7922, Canoga Park, CA, 91309
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Rex Delventhal
Rex Delventhal
2NASA Glenn Research Center, 21000 Brookpark Road, Cleveland, OH, 44135
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AIP Conf. Proc. 746, 727–737 (2005)
Citation
Patrick E. Frye, Robert Allen, Rex Delventhal; Brayton Power Conversion System Study to Advance Technology Readiness for Nuclear Electric Propulsion — Phase I. AIP Conf. Proc. 6 February 2005; 746 (1): 727–737. https://doi.org/10.1063/1.1867192
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