High temperature measurements in severe accident experiments on the PLINIUS platform

Severe accident experiments are conducted on the PLINIUS platform in Cadarache, using prototypic corium. During these experiments, it is essential to measure the temperature to know the thermo-physical state of the corium in static and dynamic conditions or to monitor the concrete ablation phenomeno...

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Bibliographic Details
Main Authors: Bouyer, Viviane, Piluso, Pascal, Journeau, Christophe, Parga, Clemente, Cassiaut-Louis, Nathalie, Fouquart, Pascal
Format: Conference Proceeding
Language:English
Subjects:
Accidents
Concrete
corium
Furnaces
high temperature
measurement
nuclear reactor
Plasma temperature
severe accidents
Temperature measurement
Temperature sensors
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Summary:Severe accident experiments are conducted on the PLINIUS platform in Cadarache, using prototypic corium. During these experiments, it is essential to measure the temperature to know the thermo-physical state of the corium in static and dynamic conditions or to monitor the concrete ablation phenomenology. Temperature in the corium can reach about 2000 to 3000 K. Such aggressive conditions restrict the type of diagnostics that can be employed to do high temperature measurements during the experiments. We employ both non-intrusive (pyrometers) and intrusive (K-type and C-type thermocouples) diagnostics. In this paper, we present the different high temperature measurements techniques and the results that can be obtained in severe accident experiments as corium heating tests and molten core concrete interaction experiments.
DOI:10.1109/ANIMMA.2013.6728003