Publications

Stein, Emily S.; Bryan, Charles R.; Dobson, David C.; Hardin, Ernest H.; Jove Colon, Carlos F.; Lopez, Carlos M.; Matteo, Edward N.; Mohanty, Sitakanta N.; Pendleton, Martha W.; Perry, Frank V.; Prouty, Jeralyn L.; Sassani, David C.; Wang, Yifeng; Rutqvist, Jonny R.; Zheng, Liange Z.; Sauer, Kirsten B.; Caporuscio, Florie C.; Howard, Robert H.; Adeniyi, Abiodun A.; Joseph, Robby J.

Disposal of large, heat-generating waste packages containing the equivalent of 21 pressurized water reactor (PWR) assemblies or more is among the disposal concepts under investigation for a future repository for spent nuclear fuel (SNF) in the United States. Without a long (>200 years) surface storage period, disposal of 21-PWR or larger waste packages (especially if they contain high-burnup fuel) would result in in-drift and near-field temperatures considerably higher than considered in previous generic reference cases that assume either 4-PWR or 12-PWR waste packages (Jové Colón et al. 2014; Mariner et al. 2015; 2017). Sevougian et al. (2019c) identified high-temperature process understanding as a key research and development (R&D) area for the Spent Fuel and Waste Science and Technology (SFWST) Campaign. A two-day workshop in February 2020 brought together campaign scientists with expertise in geology, geochemistry, geomechanics, engineered barriers, waste forms, and corrosion processes to begin integrated development of a high-temperature reference case for disposal of SNF in a mined repository in a shale host rock. Building on the progress made in the workshop, the study team further explored the concepts and processes needed to form the basis for a high-temperature shale repository reference case. The results are described in this report and summarized..

Swiler, Laura P.; Helton, J.C.; Basurto, Eduardo B.; Brooks, Dusty M.; Mariner, Paul M.; Moore, Leslie M.; Mohanty, Sitakanta N.; Sevougian, Stephen D.; Stein, Emily S.

Abstract not provided.