engleski

Benchmark Exercise on QUENCH-11 Experiment

The QUENCH experiments at the Karlsruhe Research Center are set up to investigate hydrogen source term generation that results from the water or steam injection into an uncovered core of a Light-Water Reactor (LWR), to examine the behavior of overheated fuel elements under different flooding conditions, and to create a database for model development and improvement of Severe Fuel Damage code packages. The test QUENCH-11 was conducted at the Karlsruhe Research Center on 8 December 2005 as the second of two experiments in the frame of the EC-supported LACOMERA program. The experiment is focused on studying the bundle behavior during boil-off and subsequent quenching at low water injection rate. The test was proposed by INRNE - Sofia, and defined together with the Karlsruhe Research Center. A SARNET benchmark problem is defined as a comparison between QUENCH-11 experimental data and analytical results received from the different computer codes such as ASTEC, ICARE-CATHARE, MELCOR, RELAP5/SCDAP, RELAP/SCDAPSIM, RATEG/SVECHA, and ATHLET-CD. In total ten participants from seven countries participated in this exercise.

quench experiment; severe accidents

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