CORE SIM+ simulations of COLIBRI fuel rods oscillation experiments and comparison with measurements
Paper in proceeding, 2020
At EPFL, the CROCUS reactor has been used to carry out experiments with vibrating fuel rods. The paper presents a first attempt to employ the measured data to validate CORE SIM+, a neutron noise solver developed at Chalmers University of Technology. For this purpose, the original experimental data are processed in order to extract the necessary information. In particular, detector recordings are scrutinized and detrended, and used to estimate CPSDs of detector pairs. These values are then compared with the ones derived from the CORE SIM+ simulations of the experiments. The main trend of the experimental data along with the values for some detectors are successfully reproduced by CORE SIM+. Further work is necessary on both the experimental and computational sides in order to improve the validation process.
fuel rod vibration
research reactor
Neutron noise
code validation
Author
Antonios Mylonakis
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
Christophe Demaziere
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
Paolo Vinai
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
Vincent Lamirand
Swiss Federal Institute of Technology in Lausanne (EPFL)
Paul Scherrer Institut
Aldolfo Rais
Swiss Federal Institute of Technology in Lausanne (EPFL)
Oskari Pakari
Swiss Federal Institute of Technology in Lausanne (EPFL)
Pavel Frajtag
Swiss Federal Institute of Technology in Lausanne (EPFL)
Daniel Godat
Swiss Federal Institute of Technology in Lausanne (EPFL)
Mathieu Hursin
Swiss Federal Institute of Technology in Lausanne (EPFL)
Paul Scherrer Institut
Gregory Perret
Paul Scherrer Institut
Axel Laureau
Swiss Federal Institute of Technology in Lausanne (EPFL)
Carlo Fiorina
Swiss Federal Institute of Technology in Lausanne (EPFL)
Andreas Pautz
Swiss Federal Institute of Technology in Lausanne (EPFL)
Paul Scherrer Institut
International Conference on Physics of Reactors: Transition to a Scalable Nuclear Future, PHYSOR 2020
Vol. 2020-March 2930-2938
9781713827245 (ISBN)
2020 International Conference on Physics of Reactors: Transition to a Scalable Nuclear Future, PHYSOR 2020
Cambridge, United Kingdom,
Cambridge, United Kingdom,
Core monitoring techniques and experimental validation and demonstration (CORTEX)
European Commission (EC) (EC/H2020/754316), 2017-09-01 -- 2021-08-31.
Subject Categories
Other Engineering and Technologies
Other Natural Sciences
Areas of Advance
Energy
DOI
10.1051/epjconf/202124721006