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Title: Low-Enriched Uranium Fuel Conversion Activities for the High Flux Isotope Reactor, Annual Report for FY 2011

Abstract

This report describes progress made during FY11 in ORNL activities to support converting the High Flux Isotope Reactor (HFIR) from high-enriched uranium (HEU) fuel to low-enriched uranium (LEU) fuel. Conversion from HEU to LEU will require a change in fuel form from uranium oxide to a uranium-molybdenum (UMo) alloy. With both radial and axial contouring of the fuel foil and an increase in reactor power to 100 MW, calculations indicate that the HFIR can be operated with LEU fuel with no degradation in performance to users from the current levels achieved with HEU fuel. Studies are continuing to demonstrate that the fuel thermal safety margins can be preserved following conversion. Studies are also continuing to update other aspects of the reactor steady state operation and accident response for the effects of fuel conversion. Technical input has been provided to Oregon State University in support of their hydraulic testing program. The HFIR conversion schedule was revised and provided to the GTRI program. In addition to HFIR conversion activities, technical support was provided directly to the Fuel Fabrication Capability program manager.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); High Flux Isotope Reactor
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1038476
Report Number(s):
ORNL/TM-2011/507
NN9002000; MDGA518; TRN: US1202012
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; ACCIDENTS; FABRICATION; HFIR REACTOR; HYDRAULICS; ORNL; PERFORMANCE; SAFETY MARGINS; SCHEDULES; TESTING; URANIUM; URANIUM OXIDES; LEU Fuel

Citation Formats

Renfro, David G, Cook, David Howard, Freels, James D, Griffin, Frederick P, Ilas, Germina, Sease, John D, and Chandler, David. Low-Enriched Uranium Fuel Conversion Activities for the High Flux Isotope Reactor, Annual Report for FY 2011. United States: N. p., 2012. Web. doi:10.2172/1038476.
Renfro, David G, Cook, David Howard, Freels, James D, Griffin, Frederick P, Ilas, Germina, Sease, John D, & Chandler, David. Low-Enriched Uranium Fuel Conversion Activities for the High Flux Isotope Reactor, Annual Report for FY 2011. United States. doi:10.2172/1038476.
Renfro, David G, Cook, David Howard, Freels, James D, Griffin, Frederick P, Ilas, Germina, Sease, John D, and Chandler, David. Thu . "Low-Enriched Uranium Fuel Conversion Activities for the High Flux Isotope Reactor, Annual Report for FY 2011". United States. doi:10.2172/1038476. https://www.osti.gov/servlets/purl/1038476.
@article{osti_1038476,
title = {Low-Enriched Uranium Fuel Conversion Activities for the High Flux Isotope Reactor, Annual Report for FY 2011},
author = {Renfro, David G and Cook, David Howard and Freels, James D and Griffin, Frederick P and Ilas, Germina and Sease, John D and Chandler, David},
abstractNote = {This report describes progress made during FY11 in ORNL activities to support converting the High Flux Isotope Reactor (HFIR) from high-enriched uranium (HEU) fuel to low-enriched uranium (LEU) fuel. Conversion from HEU to LEU will require a change in fuel form from uranium oxide to a uranium-molybdenum (UMo) alloy. With both radial and axial contouring of the fuel foil and an increase in reactor power to 100 MW, calculations indicate that the HFIR can be operated with LEU fuel with no degradation in performance to users from the current levels achieved with HEU fuel. Studies are continuing to demonstrate that the fuel thermal safety margins can be preserved following conversion. Studies are also continuing to update other aspects of the reactor steady state operation and accident response for the effects of fuel conversion. Technical input has been provided to Oregon State University in support of their hydraulic testing program. The HFIR conversion schedule was revised and provided to the GTRI program. In addition to HFIR conversion activities, technical support was provided directly to the Fuel Fabrication Capability program manager.},
doi = {10.2172/1038476},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {3}
}

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