SP-100 reactor with Brayton conversion for lunar surface applications

Details SP-100 reactor with Brayton conversion for lunar surface applications SP-100 reactor with Brayton conversion for lunar surface applications

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aipc..246..866m&link_type=abstract

Proceedings of the ninth symposium on space nuclear power systems. AIP Conference Proceedings, Volume 246, pp. 866-877 (1992).

Computer Science

Performance

Brayton Cycle, Lunar Bases, Lunar Surface, Space Power Reactors, Cylindrical Bodies, Deployment, Excavation, Installing, Lithium Hydrides, Lunar Rocks, Radiation Protection, Reliability, Safety

Scientific paper

Examined here is the potential for integrating Brayton-cycle power conversion with the SP-100 reactor for lunar surface power system applications. Two designs were characterized and modeled. The first design integrates a 100-kWe SP-100 Brayton power system with a lunar lander. This system is intended to meet early lunar mission power needs while minimizing on-site installation requirements. Man-rated radiation protection is provided by an integral multilayer, cylindrical lithium hydride/tungsten (LiH/W) shield encircling the reactor vessel. Design emphasis is on ease of deployment, safety, and reliability, while utilizing relatively near-term technology. The second design combines Brayton conversion with the SP-100 reactor in a erectable 550-kWe powerplant concept intended to satisfy later-phase lunar base power requirements. This system capitalizes on experience gained from operating the initial 100-kWe module and incorporates some technology improvements. For this system, the reactor is emplaced in a lunar regolith excavation to provide man-rated shielding, and the Brayton engines and radiators are mounted on the lunar surface and extend radially from the central reactor. Design emphasis is on performance, safety, long life, and operational flexibility.

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