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|Title:||Overview of Containment Issues and Major Experimental Activities|
|Authors:||WILKENING HEINZ; JACOBS H.; PAILLERE H.|
|Other Contributors:||MEYER L.|
|Citation:||Proceedings of The 1st European Review Meeting on Severe Accident Research (ERMSAR2005) p. 1-12|
|Type:||Articles in periodicals and books|
|Abstract:||In the CONTAINMENT area of SARNET three issues of severe accident phenomenology are treated which endanger the containment integrity by pressure increase due to fast heat release or transfer: hydrogen combustion, explosive melt water interaction, and direct containment heating. They occur late in severe accidents as consequences of severe core damage. So, their probability of occurrence is extremely small but they involve the risk of a failure of the containment, the final safety enclosure. The pressure load can be quasi-static, i.e. several seconds during direct containment heating (DCH), or highly dynamic as in hydrogen detonation or fuel-coolant interaction (FCI). The related phenomena identified by the EURSAFE project as both important for safety and still lacking sufficient knowledge are investigated experimentally and analytically in a integrated effort by seventeen partner organizations. The paper presents some of the main experimental facilities and results. Concerning the analysis a large number of CFD codes and lumped parameter codes are developed, verified and used, which can only be introduced in brief.|
|JRC Institute:||Institute for Energy and Transport|
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