Supercomputer Modelling Enhances Long-Term Safety of Nuclear Waste Disposal in Finland
A project led by Amphos 21 for Posiva Oy is utilizing supercomputing to enhance the safety of nuclear waste disposal for up to one million years. The OL-STAR project, based at the ONKALO facility in Olkiluoto, Finland, employs advanced groundwater chemistry modelling and the LUMI supercomputer to simulate subsurface processes impacted by climate shifts and geological changes. This initiative aims to ensure sustainable nuclear power remains a viable low-carbon energy source.
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Amphos 21 is conducting advanced groundwater chemistry modelling for Posiva Oy, focusing on the ONKALO deep geological disposal facility in Olkiluoto, Finland. The OL-STAR project leverages the LUMI supercomputer, part of the European High Performance Computing Joint Undertaking (EuroHPC JU), to simulate groundwater behaviour over one million years.
This high-performance modelling allows for more accurate assessments of hydrogeological changes, enhancing confidence in the long-term safety of nuclear waste disposal. The project supports the viability of nuclear energy as a sustainable, low-emissions power source.
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