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Innovative Materials: NEO2023 Goes to KIT Spin-offARTIS, Uli Deck
Innovative Materials: NEO2023 Goes to KIT Spin-off

Double success at the Karlsruhe TechnologyRegion Innovation Award: nanoshape GmbH receives the jury prize, the KIT Institute of Mechanical Process Engineering and Mechanics the audience award

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 Kosten der Klimakrise: Rettungsschirm für bedrohte NationenPantherMedia/DogoraSun
Costs of the Climate Crisis: A Rescue Fund for Threatened Nations

Public-private partnerships could help protect developing countries from the financial consequences of climate change

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High-resolution Precipitation Maps Using AI
High-resolution Precipitation Maps Using AI

For the first time, KIT researchers have used deep learning to simultaneously improve the spatial and temporal resolution of coarse precipitation maps

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Recovering Instead of Shredding: Recycling Batteries More Efficiently
Recovering Instead of Shredding: Recycling Batteries More Efficiently

KIT researchers and industry partners develop a more sustainable recycling process in order to recycle materials from lithium-ion batteries more effectively

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Cover von lookKIT zum Thema Klimawandel
Climate Change

The current issue of lookKIT is dedicated to research on climate change and its consequences.

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Statement on the Situation in Israel

As part of the Alliance of Science Organizations, KIT stands in solidarity with Israel.

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Events

Improved Analysis of the Short-Term Station Blackout Accidents of the Peach Bot-tom Unit-2 Reactor with ASTEC Including Radiological Impact and Statistical Analysis with JRODOS

Improved Analysis of the Short-Term Station Blackout Accidents of the Peach Bot-tom Unit-2 Reactor with ASTEC Including Radiological Impact and Statistical Analysis with JRODOS

2023-12-04 11:00 - 12:00KIT Campus Nord, INR, Bau 521, 2. OG, Raum 302
After the severe accident at Fukushima, the importance of BWR design and related structures and their contribution to the severe accident progression has increased. Fuel channel boxes, absorber crosses, water rods, and smaller primary containment design of the BWR have been considered in the ASTEC code to increase the knowledge of BWR design and associated models. The previously developed ASTEC model for Peach Bottom Unit 2 was updated to include modern GE14 10x10 fuel assemblies with realistic fission pro-duct inventories. The CASMO5 code predicted the fission product inventory and burnup for GE14 10x10 fuel assemblies based on real plant data obtained from the ENRESA samples. The most anticipated transient scenario i.e. station blackout (SBO) for the BWR design was selected. First, a Short-Term Station Blackout (ST-SBO) analysis was performed to compare the impact of the old and new fuel assembly designs and secondly, a short-term station blackout with a stuck open safety relief valve (ST-SBO SOSRV) was consi-dered for modern fuel assemblies. The scatter of corium ejection amounts between the considered scenarios showed the importance of the design of the bottom head and the penetration points in BWRs. In both cases, failure of the drywell head flange and release of radionuclides to the environment occurred. Radiological analysis using JRODOS was performed for both cases and the statistical analysis and the number of re-cords in the considered cities around the Peach Bottom Plant showed the distribution over the region and the risk factors of the populated cities. The collaborative use of three codes in this study allows users to identify the fission product inventory with CASMO5 and investigation of the severe accident scenario with ASTEC and identifying radiological impact of the released radioactive isotopes to the environment with JRODOS code.
 
Herr Onur Murat, Karlsruher Institut für Technologie

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