“By accurately predicting the nuclear reactor fuel cycle, ExaSMR reduces the number of physical experiments that reactor designers would perform to justify fuel use,” said Steven Hamilton, ExaSMR project leader and R&D scientist in the HPC Methods for Nuclear Applications Group at DOE’s Oak Ridge National Laboratory. Supported by the Department of Energy’s Exascale Computing Project since 2016, the ExaSMR project endeavors to make large-scale nuclear reactor simulations easier to access, cheaper to run and more accurate than the current state of the art. Meanwhile, ARCs explore new technologies to produce fission power more efficiently and safely.Įxascale Small Modular Reactor, or ExaSMR for short, aims to provide the nuclear industry’s engineers with the highest-resolution simulations of reactor systems to date and, in turn, help advance the future of fission power. SMRs are substantially smaller than most commercial nuclear reactors today and use standardized designs, reducing construction costs and production time. The advent of small modular reactors, or SMRs, and advanced reactor concepts, or ARCs, signals a new generation of fission power. But that percentage could start increasing soon. Optimized for exascale supercomputers, the ExaSMR simulation toolkit advances state-of-the-art nuclear reactor designĪs renewable sources of energy such as wind and sun power are being increasingly added to the country’s electrical grid, old-fashioned nuclear energy is also being primed for a resurgence.įor the past 20 years, fission reactors have produced a nearly unchanging portion of the nation’s electricity: around 20%.
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