Fuel systems for compact fast space reactors

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About 200 refractory metal clad ceramic fuel pins have been irradiated in thermal reactors under the 1200 K to 1550 K cladding temperature conditions of primary relevance to space reactors. This paper reviews performance with respect to fissile atom density, operating temperatures, fuel swelling, fission gas release, fuel-cladding compatibility, and consequences of failure. It was concluded that UO/sub 2/ and UN fuels show approximately equal performance potential and that UC fuel has lesser potential. W/Re alloys have performed quite well as cladding materials, and Ta, Nb, and Mo/Re alloys, in conjunction with W diffusion barriers, show good promise. Significant issues ... continued below

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Pages: 23

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Cox, C.M.; Dutt, D.S. & Karnesky, R.A. December 1, 1983.

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Description

About 200 refractory metal clad ceramic fuel pins have been irradiated in thermal reactors under the 1200 K to 1550 K cladding temperature conditions of primary relevance to space reactors. This paper reviews performance with respect to fissile atom density, operating temperatures, fuel swelling, fission gas release, fuel-cladding compatibility, and consequences of failure. It was concluded that UO/sub 2/ and UN fuels show approximately equal performance potential and that UC fuel has lesser potential. W/Re alloys have performed quite well as cladding materials, and Ta, Nb, and Mo/Re alloys, in conjunction with W diffusion barriers, show good promise. Significant issues to be addressed in the future include high burnup swelling of UN, effects of UO/sub 2/-Li coolant reaction in the event of fuel pin failure, and development of an irradiation performance data base with prototypically configured fuel pins irradiated in a fast neutron flux.

Physical Description

Pages: 23

Notes

NTIS, PC A02/MF A01.

Source

  • Symposium on space nuclear power systems, Albuquerque, NM, USA, 10 Jan 1984

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  • Other: DE84006545
  • Report No.: HEDL-SA-3065-FP
  • Report No.: CONF-840113-6
  • Grant Number: AC06-76FF02170
  • Office of Scientific & Technical Information Report Number: 5244441
  • Archival Resource Key: ark:/67531/metadc1067768

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 1, 1983

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  • Feb. 4, 2018, 10:51 a.m.

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  • June 8, 2018, 7:24 p.m.

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Cox, C.M.; Dutt, D.S. & Karnesky, R.A. Fuel systems for compact fast space reactors, article, December 1, 1983; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc1067768/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.