AGR-1 Fuel Product Specification and Characterization Guidance

AGR 3/4 Irradiation Test Final As Run Report

“…Each particle has a central kernel containing LEU UCO fuel, which is nominally 350 Pm in diameter and is coated with a porous carbon buffer, inner pyrolytic carbon (IPyC), SiC (silicon carbide) and an outer pyrolytic carbon (OPyC) layer. The UCO kernels were fabricated by Babcock and Wilcox (B&W) in accordance with the AGR-1 Fuel Product Specification (Barnes 2006). The UCO kernels were coated by Oak Ridge National Laboratory (ORNL), which also provided characterization data Lowden 2006a through 2006d).…”

“…Selected properties for these kernels are given in Table A-1. The UCO kernels were coated by Oak Ridge National Laboratory (ORNL) who also provided characterization data Lowden 2006a through 2006d). Coating was performed in accordance with the AGR-1 Fuel Product Specification (Barnes 2006). A summary of selected properties, based on actual characterization data, for each of the four coated particle composites is listed in Table A-2 After coating, AGR-1 fuel was formed into right cylindrical compacts.…”

AGR-1 Data Qualification Report

“…Coating conditions for AGR-1 fuel were varied during particle fabrication to create a baseline and three variant particle composites. Process conditions for the baseline and three variants are described in Barnes (2006). Once the coatings are applied, thousands of particles are formed into cylindrical compacts using a graphite-resin matrix.…”

“…Coated particles and compacts were produced under a quality program that conformed to the requirements of the NQA-1 2000 as implemented and documented by the fuel fabricator's QAPP (ORNL, 2006). Engineering Design File EDF-4380, "AGR-1 Fuel Product Specification and Characterization Guidance" (Barnes 2006) provides the requirements necessary for acceptance of the fuel manufactured for the AGR-1 irradiation test. Section 6.2 of EDF-4380 provides the property requirements for the heat treated compacts.…”

“…The procedures for characterizing and qualifying the compacts are outlined in ORNL product inspection plan AGR-CHAR-PIP-05. The inspection report forms generated by this product inspection plan document the product acceptance for the property requirements listed in Section 6.2 of EDF-4380 (Barnes 2006). Independent verification that quality requirements for the data were met is provided by supplier audits conducted by INL (Roberts and Barnes 2005aBarnes , 2005b).…”