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| Report | FZJ-2016-05955 |
1994
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag
Jülich
Please use a persistent id in citations: http://hdl.handle.net/2128/12734
Report No.: Juel-2956
Abstract: A High Temperature Reactor can be designed to remove the decay heat without usingany active systems. For most accident scenarios a release of radioactive fission productscan be excluded by design. However, during operation of a HTR some accidents areprincipally possible, which can result in a release of fission products out of the fuelelements and of the reactor system. One of these accidents is a hypothetical massive airingress into the hot graphite reactor core. After a pressure drop caused by leakages inthe primary circuit a gas mass flow may be able to stream through the core according tofree natural convection leading to a corrosion of the graphite fuel elements and reflector structures .
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