Abstract
Space nuclear power system is the key technology for deep space exploration missions in the future, especially for space base building-up. This paper evaluates several typical latest space nuclear reactor system (SNRS) designs, and finds that most of their weights are heavier than necessary. From the point of weight-control, the S^4 design is the best but its design is more complex than others. A newly designed SNRS, based on the SAFE400 model, uses annular fuel and has better performance, with a fuel mass lower than that of the SAFE400 prototype by 18.75%. Meanwhile, different from former opinions, the delay neutron fractions of SNRS are not constant and change with the different SNRS designs. Therefore, designs of SNRS not to count the delayed neutron fracture or directly to consider it as 0.00677 are not appropriate.
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References
O’Brien R C. Radioisotope and Nuclear Technologies for Space Exploration. Dissertation for Doctor Degree. East Midlands: University of Leicester, 2010
Summerer L, Stephenson K. Nuclear power sources: A key enabling technology for planetary exploration. Proc IMechE Part G-J Aerosp Eng, 2011, 225(2): 129–143
O’Brien R, Ambrosi R, Bannister N, et al. Safe radioisotope thermoelectric generators and heat sources for space applications. J Nucl Mater, 2008, 377(3): 506–521
Poston D I, Kapernick R, Dixon D, et al. Reference reactor module design for NASA’s Lunar Fission Surface Power System. Proc of Nuclear and Emerging Technologies for Space 2009, Atlanta, USA. 2009
El-Genk M S, Schriener T M. Performance and radiological analyses of a space reactor power system deployed into a 1000–3000 km earth orbit. Prog Nucl Energy, 2010, 52: 236–248
Anderson D J, Wong W A, Tuttle K L. An Overview and Status of NASA’s Radioisotope Power Conversion Technology NRA. San Francisco, USA, 2005
Poston D I, Kapernick R J, Guffee R M. Design and analysis of the SAFE-400 space fission reactor. Proc Space Technology and Applications International Forum(STAIF-2002). Albuquerque, USA, 2002
El-Genk M S. Deployment history and design considerations for space reactor power systems. Acta Astronaut, 2009, 64(9): 833–849
Bushman A, Carpenter D M, Ellis T S, et al. The Martian Surface Reactor: An advanced nuclear power station for manned extraterrestrial exploration. MIT-NSA-TR-003, 2004
Amiri B W, Sims B T, Poston D I, et al. A stainless-steel, uranium dioxide, potassium-heatpipe-cooled surface reactor. Proc Space Technology and Applications International Forum (STAIF-2006), Albuquerque, USA, 2006
Maise G, Powell J, Pariagua J. SUSEE: A compact, lightweight space nuclear power system using present water reactor technology. Proc Space Technology and Applications International Forum (STAIF-2006), Albuquerque, USA, 2006
El-Genk M S, Hatton S, Fox C, et al. SCoRe-Concepts of liquid metal cooled space reactorsfor avoidance of single point failure. Proc Space Technology and Applications International Forum (STAIF-2005), Albuquerque, USA, 2005
King J C, El-Genk M S. Solid-core gas-cooled reactor for space and surface power. Proc Space Technology and Applications International Forum (STAIF-2006), Albuquerque, USA, 2006
Poston D I. A Comparison of fast-spectrum and moderated space fission reactors. Proc Space Technology and Applications International Forum (STAIF-2005), Albuquerque, USA, 2005
Pelowitz D B. MCNPX User’s Manual Version 2.6.0. Los Alamos National Laboratory Report LA-CP-07-1473, 2008
Klein Meulekamp R, van der Marck S C. Calculating the effective delayed neutron fraction with Monte Carlo. Nucl Sci Eng, 2006, 152: 142–148
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Wang, S., He, C. Weight control in design of space nuclear reactor system. Sci. China Technol. Sci. 56, 2594–2598 (2013). https://doi.org/10.1007/s11431-013-5305-3
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DOI: https://doi.org/10.1007/s11431-013-5305-3