Investigations on the phenomenology of ex-vessel core melt behaviour (COMAS)

摘要

Within the COMAS (corium on material surfaces) project, representative experimental and analytical investigations on the ex-vessel spreading behaviour of prototypic corium were performed to provide a realistic technical basis for the development of core catcher for future nuclear reactor generations. In various large-scale experiments, melts in the Mg-range with real corium compositions and temperatures around 2000 deg. C were tested using different substratum materials (concrete, ceramics, cast iron).