TY - JOUR
T1 - Sequential detection of a total instantaneous blockage occurred in a single subassembly of a sodium-cooled fast reactor
AU - Nikiforov, Igor
AU - Harrou, Fouzi
AU - Cogranne, Remi
AU - Beauseroy, Pierre
AU - Grall, Edith
AU - Guepie, Blaise Kevin
AU - Fillatre, Lionel
AU - Jeannot, Jean-Philippe
N1 - KAUST Repository Item: Exported on 2021-07-13
Acknowledgements: The authors gratefully acknowledge the research and financial support of this work from the Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), from the group of scientific interest GIS 3SGS, and from the project AAP NEEDS of CNRS, France.
PY - 2020
Y1 - 2020
N2 - The on-line diagnosis can be defined as a sequence of operations designed to detect, to isolate an anomaly and to mitigate its impact before it affects the inspected system. In the context of the project ALPES 2 (local accidents – protection and monitoring, in English) of the GIS 3SGS (group of scientific interest – surveillance, dependability, security of large systems, in English), the statistical methods for the early detection of a Total Instantaneous Blockage (TIB) occurred in a single subassembly of a sodium-cooled fast reactor have being studied. This work is carried out within the framework of model-based detection methods. The goal of this paper is to study the feasibility of a sequential approach to detect an abnormal local temperature rise of neighboring subassemblies due to a TIB while respecting the probability of missed detection, the probability of false alarm and the required time-to-alert. The adaptive statistical estimation/detection method is based on the measurements taken from ThermoCouples (TCs) located above the subassemblies. The aim is therefore to provide a complementary tool to improve the early detection of a TIB in the context of nuclear safety.
AB - The on-line diagnosis can be defined as a sequence of operations designed to detect, to isolate an anomaly and to mitigate its impact before it affects the inspected system. In the context of the project ALPES 2 (local accidents – protection and monitoring, in English) of the GIS 3SGS (group of scientific interest – surveillance, dependability, security of large systems, in English), the statistical methods for the early detection of a Total Instantaneous Blockage (TIB) occurred in a single subassembly of a sodium-cooled fast reactor have being studied. This work is carried out within the framework of model-based detection methods. The goal of this paper is to study the feasibility of a sequential approach to detect an abnormal local temperature rise of neighboring subassemblies due to a TIB while respecting the probability of missed detection, the probability of false alarm and the required time-to-alert. The adaptive statistical estimation/detection method is based on the measurements taken from ThermoCouples (TCs) located above the subassemblies. The aim is therefore to provide a complementary tool to improve the early detection of a TIB in the context of nuclear safety.
UR - http://hdl.handle.net/10754/670153
UR - https://linkinghub.elsevier.com/retrieve/pii/S0029549320302272
UR - http://www.scopus.com/inward/record.url?scp=85087921198&partnerID=8YFLogxK
U2 - 10.1016/j.nucengdes.2020.110733
DO - 10.1016/j.nucengdes.2020.110733
M3 - Article
SN - 1872-759X
VL - 366
SP - 110733
JO - NUCLEAR ENGINEERING AND DESIGN
JF - NUCLEAR ENGINEERING AND DESIGN
ER -