Title :
Towards in-service acoustic characterization of gaseous microbubbles applied to liquid sodium
Author :
Cavaro, M. ; Moysan, J. ; Corneloup, G. ; Gueudré, C. ; Payan, C. ; Baqué, F. ; Prele, G. ; Sibilo, J.
Author_Institution :
DEN/DTN/STPA/LIET, CEA Cadarache, St. Paul-lez-Durance, France
Abstract :
The characterization of argon microbubbles in liquid nitrogen is currently being investigated in connection with the development of Generation IV nuclear reactors. It seems that non-linear acoustic techniques can be used to determine the void fraction (volumetric fraction of free gas) and the histogram of the bubble radiuses. We discuss the first stage of our work here: the installation of an experimental test bench suitable for generating air microbubbles in water and then measuring them optically, before attempting an acoustic characterization. The bubble clouds generated have a radius distribution centred on about 20 microns.
Keywords :
acoustic measurement; bubbles; fission reactor coolants; fission reactor cooling; fission reactor instrumentation; liquid metal fast breeder reactors; nonlinear acoustics; Generation IV nuclear reactors; argon microbubbles; bubble radius histogram; gaseous microbubbles; in service acoustic characterization; liquid nitrogen; liquid sodium; nonlinear acoustic techniques; void fraction; Acoustic measurements; Acoustic testing; Argon; Character generation; Clouds; Histograms; Nitrogen; Nonlinear acoustics; Nonlinear optics; Nuclear power generation; Liquid sodium; Microbubble cloud; Nonlinear acoustics;
Conference_Titel :
Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2009 First International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4244-5207-1
Electronic_ISBN :
978-1-4244-5208-8
DOI :
10.1109/ANIMMA.2009.5503768
