Journal
NUCLEAR TECHNOLOGY
Volume 162, Issue 2, Pages 158-168Publisher
AMER NUCLEAR SOC
DOI: 10.13182/NT08-A3943
Keywords
voloxidation and OREOX; fission products; release characteristics
Categories
Funding
- Ministry of Education, Science & Technology (MoST), Republic of Korea [2007-00167] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Quantitative analysis of the fission gas release characteristics during the voloxidation and oxidation and reduction of oxide fuel (OREOX) processes of spent pressurized water reactor (PWR) fuel was carried out by spent PWR fuel in a hot cell of the DUPIC Fuel Development Facility. The release characteristics of Kr-85 and C-14 fission gases during voloxidation process at 500'C are closely linked to the degree of conversion efficiency Of UO2 to U3O8 powder, and it can be interpreted that the release from grain boundary would be dominated during this step. Volatile fission gases of C-14 and Kr-85 were released to near completion during the OREOX process. Both the C-14 and Kr-85 have similar release characteristics under the voloxidation and OREOX process conditions. A higher burnup spent fuel showed a higher release fraction than that of a low burnup fuel during the voloxidation step. It was also observed that the release fraction of semivolatile Cs was similar to 16% during a reduction at 1000 degrees C of the oxidized powder, but over 90% during the voloxidation at 1250 degrees C.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available