HTGR Fuel performance basis

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Description

The safety characteristics of the high-temperature gas-cooled reactor (HTGR) during normal and accident conditions are determined in part by HTGR fuel performance. During normal operation, less than 0.1% fuel failure occurs, primarily from defective particles. This low fuel failure fraction limits circulating activity to acceptable levels. During severe accidents, the radiological consequence is influenced by high-temperature fuel particle behavior. An empirical fuel failure model, supported by recent experimental data, is presented. The onset of significant fuel particle failure occurs at temperatures in excess of 1600/sup 0/C, and complete fuel failure occurs at 2660/sup 0/C. This indicates that the fuel is ... continued below

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Pages: 18

Creation Information

Shamasundar, B.I.; Stansfield, O.M. & Jensen, D.D. May 1, 1982.

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Description

The safety characteristics of the high-temperature gas-cooled reactor (HTGR) during normal and accident conditions are determined in part by HTGR fuel performance. During normal operation, less than 0.1% fuel failure occurs, primarily from defective particles. This low fuel failure fraction limits circulating activity to acceptable levels. During severe accidents, the radiological consequence is influenced by high-temperature fuel particle behavior. An empirical fuel failure model, supported by recent experimental data, is presented. The onset of significant fuel particle failure occurs at temperatures in excess of 1600/sup 0/C, and complete fuel failure occurs at 2660/sup 0/C. This indicates that the fuel is more retentive at higher temperatures than previously assumed. The more retentive nature of the fuel coupled with the high thermal capacitance of the core results in slow release of fission products from the core during severe accidents.

Physical Description

Pages: 18

Notes

NTIS, PC A02/MF A01.

Source

  • 3. Japan/US HTGR safety technology seminar, Upton, NY, USA, 2 Jun 1982

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  • Other: DE82017051
  • Report No.: GA-A-16767
  • Report No.: CONF-820650-1
  • Grant Number: AT03-76ET353000
  • Office of Scientific & Technical Information Report Number: 5338460
  • Archival Resource Key: ark:/67531/metadc1064684

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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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Creation Date

  • May 1, 1982

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

Description Last Updated

  • April 4, 2018, 12:11 p.m.

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Shamasundar, B.I.; Stansfield, O.M. & Jensen, D.D. HTGR Fuel performance basis, article, May 1, 1982; United States. (digital.library.unt.edu/ark:/67531/metadc1064684/: accessed April 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.