U.S. Department of EnergyOffice of Scientific and Technical Information
AGR-2 Loose Particle Heating Tests in the Furnace for Irradiated TRISO Testing
Abstract
A furnace system was developed to thermally expose individual tristructural-isotropic (TRISO) coated particles to expand upon established postirradiation examination (PIE) safety testing that is used to explore particle failures and fission product release from compacts. Two systems were installed in the Irradiated Fuels Examination Facility (IFEL) at Oak Ridge National Laboratory (ORNL). The targeted design was intended to be simple and flexible to allow a range in conditions to be explored. Initial inert atmosphere testing indicated the presence of particle failures, so modifications to the testing approach were implemented to improve the furnace operation. Ultimately, burnback particles were analyzed to provide a direct measurement of fission product release, thus avoiding the complications from integral release that were observed during whole compact testing. Particles were exposed to temperatures ranging 1,150–1,300°C for up to 1,500 h and 1,600°C up to 500 h. No indication of uniform release of fission products such as 106Ru, 125Sb, or 154Eu was observed, however, indication of particle dependent 154Eu release was suggested for select particles. Exploration of 110mAg release was limited to 1,150°C and 1,300°C up to 500 h. The analysis indicated that there was nonuniform release of 110mAg and supports a possible bimodal temperature dependence onmore »
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE), Reactor Fleet and Advanced Reactor Development
- OSTI Identifier:
- 1661209
- Report Number(s):
- ORNL/TM-2020/1715
TRN: US2202376
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 22 GENERAL STUDIES OF NUCLEAR REACTORS; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
Citation Formats
Gerczak, Tyler J., Hunn, John D., Morris, Robert Noel, Skitt, Darren, and Burns, Zachary M.. AGR-2 Loose Particle Heating Tests in the Furnace for Irradiated TRISO Testing. United States: N. p., 2020.
Web. doi:10.2172/1661209.
Gerczak, Tyler J., Hunn, John D., Morris, Robert Noel, Skitt, Darren, & Burns, Zachary M.. AGR-2 Loose Particle Heating Tests in the Furnace for Irradiated TRISO Testing. United States. https://doi.org/10.2172/1661209
Gerczak, Tyler J., Hunn, John D., Morris, Robert Noel, Skitt, Darren, and Burns, Zachary M.. 2020.
"AGR-2 Loose Particle Heating Tests in the Furnace for Irradiated TRISO Testing". United States. https://doi.org/10.2172/1661209. https://www.osti.gov/servlets/purl/1661209.
@article{osti_1661209,
title = {AGR-2 Loose Particle Heating Tests in the Furnace for Irradiated TRISO Testing},
author = {Gerczak, Tyler J. and Hunn, John D. and Morris, Robert Noel and Skitt, Darren and Burns, Zachary M.},
abstractNote = {A furnace system was developed to thermally expose individual tristructural-isotropic (TRISO) coated particles to expand upon established postirradiation examination (PIE) safety testing that is used to explore particle failures and fission product release from compacts. Two systems were installed in the Irradiated Fuels Examination Facility (IFEL) at Oak Ridge National Laboratory (ORNL). The targeted design was intended to be simple and flexible to allow a range in conditions to be explored. Initial inert atmosphere testing indicated the presence of particle failures, so modifications to the testing approach were implemented to improve the furnace operation. Ultimately, burnback particles were analyzed to provide a direct measurement of fission product release, thus avoiding the complications from integral release that were observed during whole compact testing. Particles were exposed to temperatures ranging 1,150–1,300°C for up to 1,500 h and 1,600°C up to 500 h. No indication of uniform release of fission products such as 106Ru, 125Sb, or 154Eu was observed, however, indication of particle dependent 154Eu release was suggested for select particles. Exploration of 110mAg release was limited to 1,150°C and 1,300°C up to 500 h. The analysis indicated that there was nonuniform release of 110mAg and supports a possible bimodal temperature dependence on silver release.},
doi = {10.2172/1661209},
url = {https://www.osti.gov/biblio/1661209},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}