Fast Reactors and Accelerator Driven Systems Knowledge Base

Conference Article: Detection of sodium/water reaction in a steam generator: Results of a 1995 benchmark test

Abstract

The CEA analysis of the 1995 benchmark test has been focused on the location of the injections. Two techniques have been tested: the pulse timing technique, and the time-domain delay and sum beamforming technique. The two methods gave coherent locations of the injector even if there was a difference of 25% of the SGU height between the vertical locations. Prior to that analysis, the RMS values of the signals were calculated in different frequency bands. The results obtained in the 200-1000 Hz were used to draw a rough estimation of the beginnings of the injections in order to determine the parts of the records on which the location signal processing can be carried out.

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Reference:

Acoustic signal processing for the detection of sodium boiling or sodium-water reaction in LMFRs. Final report of a co-ordinated research programme 1990-1995

International Atomic Energy Agency, Vienna (Austria)

IAEA-TECDOC--946, pp:135-147