5 results for "dryout"
4 Posts
Dryout: Preventing inadequate cooling of fuel rods
Heat is generated in the reactor as a result of nuclear fission. To guarantee optimum cooling of the fuel rods, their cladding tubes must always be covered with a film of water. If they are not completely covered with water in specific areas, this is referred to as “dryout”.
“Cladding tube damage poses no risk to mankind or the environment”
ENSI has issued Leibstadt NPP approval to restart subject to conditions. In an interview Ralph Schulz, Director of the Safety Analyses Division, shares some background insights.
ENSI issues Leibstadt Nuclear Power Plant approval to restart subject to conditions
Leibstadt NPP can restart power operation after an extended annual overhaul. The Swiss Federal Nuclear Safety Inspectorate has checked the clarification of the causes and measures derived from it for the avoidance of critical boiling conditions or dryouts. Safe operation without risk to humankind or the environment is ensured.
Findings on fuel elements in Leibstadt NPP: ENSI is classifying the incident as INES 1 and checking the submitted measures
An inspection of fuel elements in Leibstadt NPP revealed that critical boiling states – so-called dryouts – had systematically occurred over several cycles.
1 Pages
MELCOR
MELCOR, Review and Ongoing Development of the MELCOR Computer Code for the Analysis of Severe Accidents in Light Water Reactors: the MELCOR computer programme is used to simulate severe accidents in light water reactors. It maps accidents from the introductory event until the release of radioactive substances into the surrounding area, and is continuously adapted […]