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Record Details

Record 1 of 1380
Moon base reactor system
Offline Availability: Go to Request Form
Author and Affiliation:
Chavez, H.(Texas A&M Univ., College Station, TX, United States)
Flores, J.(Texas A&M Univ., College Station, TX, United States)
Nguyen, M.(Texas A&M Univ., College Station, TX, United States)
Carsen, K.(Texas A&M Univ., College Station, TX, United States)
Abstract: The objective of our reactor design is to supply a lunar-based research facility with 20 MW(e). The fundamental layout of this lunar-based system includes the reactor, power conversion devices, and a radiator. The additional aim of this reactor is a longevity of 12 to 15 years. The reactor is a liquid metal fast breeder that has a breeding ratio very close to 1.0. The geometry of the core is cylindrical. The metallic fuel rods are of beryllium oxide enriched with varying degrees of uranium, with a beryllium core reflector. The liquid metal coolant chosen was natural lithium. After the liquid metal coolant leaves the reactor, it goes directly into the power conversion devices. The power conversion devices are Stirling engines. The heated coolant acts as a hot reservoir to the device. It then enters the radiator to be cooled and reenters the Stirling engine acting as a cold reservoir. The engines' operating fluid is helium, a highly conductive gas. These Stirling engines are hermetically sealed. Although natural lithium produces a lower breeding ratio, it does have a larger temperature range than sodium. It is also corrosive to steel. This is why the container material must be carefully chosen. One option is to use an expensive alloy of cerbium and zirconium. The radiator must be made of a highly conductive material whose melting point temperature is not exceeded in the reactor and whose structural strength can withstand meteor showers.
Publication Date: Jan 01, 1989
Document ID:
19940004536
(Acquired Dec 28, 1995)
Accession Number: 94N71291
Subject Category: NUCLEAR AND HIGH-ENERGY PHYSICS
Document Type: Conference Paper
Publication Information: USRA, NASA(USRA University Advanced Design Program Fifth Annual Summer Conference; p 201-207; (SEE 19940004512)
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Texas A&M Univ.; Dept. of Nuclear Engineering.; College Station, TX, United States
Description: 7p; In English; 1 functional color page; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: BREEDER REACTORS; HEAT RADIATORS; LUNAR BASES; POWER CONVERTERS; REACTOR DESIGN; STIRLING ENGINES; BERYLLIUM OXIDES; LIQUID METALS; METAL FUELS
Imprint And Other Notes: In USRA, NASA/USRA University Advanced Design Program Fifth Annual Summer Conference p 201-207 (SEE N94-71267 09-12)
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