Simplified modeling of liquid sodium medium with temperature and velocity gradient using real thermal-hydraulic data. Application to ultrasonic thermometry in sodium fast reactor
- DEN/DTN/STPA/LIET, CEA Cadarache, Saint Paul Lez Durance (France)
- Aix-Marseille Univ, LMA UPR 7051 CNRS, site LCND, 13625 Aix-en-Provence (France)
In the framework of the French R and D program for the Generation IV reactors and specifically for the sodium cooled fast reactors (SFR), studies are carried out on innovative instrumentation methods in order to improve safety and to simplify the monitoring of fundamental physical parameters during reactor operation. The aim of the present work is to develop an acoustic thermometry method to follow up the sodium temperature at the outlet of subassemblies. The medium is a turbulent flow of liquid sodium at 550 Degree-Sign C with temperature inhomogeneities. To understand the effect of disturbance created by this medium, numerical simulations are proposed. A ray tracing code has been developed with Matlab Copyright-Sign in order to predict acoustic paths in this medium. This complex medium is accurately described by thermal-hydraulic data which are issued from a simulation of a real experiment in Japan. The analysis of these results allows understanding the effects of medium inhomogeneities on the further thermometric acoustic measurement.
- OSTI ID:
- 22113498
- Journal Information:
- AIP Conference Proceedings, Vol. 1511, Issue 1; Conference: 39. annual review of progress in quantitative nondestructive evaluation, Denver, CO (United States), 15-20 Jul 2012; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ACOUSTIC MEASUREMENTS
COMPUTERIZED SIMULATION
FRANCE
LMFBR TYPE REACTORS
MONITORING
REACTOR CONTROL SYSTEMS
REACTOR INSTRUMENTATION
REACTOR OPERATION
REACTOR SAFETY
SODIUM COOLED REACTORS
TEMPERATURE GRADIENTS
TEMPERATURE MEASUREMENT
THERMAL HYDRAULICS
TURBULENT FLOW
ULTRASONIC TESTING