Fuel rod stored energy estimates for the LOFT LOCA tests

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Loss-of-coolant accident (LOCA) tests performed in the Loss-of-Fluid Test (LOFT) Facility provide an important data base for verification of thermal-hydraulic computer models. An important parameter which must be known for LOCA model evaluation is the initial fuel rod stored energy prior to initiation of a LOCA test. While fuel rod surface temperatures are measured in the LOFT tests, pellet internal temperatures are not; thus, the fuel stored energy must be estimated via computer predictions. A method has been evaluated to estimate fuel rod stored energy in the LOFT experiments based on the measured post-critical heat flux (CHF) cladding temperature rise. ... continued below

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Pages: 5

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Tolman, E.L.; Driskell, W.E. & Coryell, E.W. January 1, 1980.

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Description

Loss-of-coolant accident (LOCA) tests performed in the Loss-of-Fluid Test (LOFT) Facility provide an important data base for verification of thermal-hydraulic computer models. An important parameter which must be known for LOCA model evaluation is the initial fuel rod stored energy prior to initiation of a LOCA test. While fuel rod surface temperatures are measured in the LOFT tests, pellet internal temperatures are not; thus, the fuel stored energy must be estimated via computer predictions. A method has been evaluated to estimate fuel rod stored energy in the LOFT experiments based on the measured post-critical heat flux (CHF) cladding temperature rise. This summary compares the stored energy as determined using the post-CHF cladding temperature evaluation to that calculated from best-estimate fuel code predictions for LOFT LOCA Tests L2-2 and L2-3. These tests simulated a large break in the reactor vessel inlet coolant pipe of a pressurized water reactor.

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Pages: 5

Notes

Dep. NTIS, PC A02/MF A01.

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  • American Nuclear Society annual meeting, Las Vegas, NV, USA, 8 Jun 1980

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  • Report No.: CONF-800607-14
  • Grant Number: EY-76-C-07-1570
  • Office of Scientific & Technical Information Report Number: 5424308
  • Archival Resource Key: ark:/67531/metadc1066202

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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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  • January 1, 1980

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

Description Last Updated

  • March 27, 2018, 7:04 p.m.

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Tolman, E.L.; Driskell, W.E. & Coryell, E.W. Fuel rod stored energy estimates for the LOFT LOCA tests, article, January 1, 1980; United States. (digital.library.unt.edu/ark:/67531/metadc1066202/: accessed May 27, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.