A simplified analysis of the Chernobyl accident
نویسندگان
چکیده
We show with simplified numerical models, that for the kind of RBMK operated in Chernobyl: The core was unstable due to its large size and weak power counter-reaction coefficient, so reactor not easy control even an automatic system. Xenon oscillations could easily be activated. When there xenon poisoning upper half core, safety rods were designed such a way that, at least initially, they increasing (and decreasing) reactivity. This reactivity increase has been sufficient lead very high pressure significant amount liquid water fuel channels thus inducing strong propagating shock wave leading failure tubes their junction drum separators. depressurization phase (flash evaporation) following this produced, after one second, decrease density then accident positive void effect coefficient. evaluate fission energy released by
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ژورنال
عنوان ژورنال: EPJ Nuclear Sciences & Technologies
سال: 2021
ISSN: ['2491-9292']
DOI: https://doi.org/10.1051/epjn/2020021