SEDL / STP / STP697-EB / STP35082S

Experience with the Acoustic Emission Monitoring of a Steam Drum Nozzle in a CANdu Nuclear Generating Station

Baron, JA
Engineer—nondestructive evaluation, Ontario Hydro Research Division, Toronto,

Pages: 12    Published: Jan 1979

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Abstract

The acoustic emission (AE) monitoring of a steam drum-boiler interface in a CANdu nuclear generating station is described. The component was monitored during both the initial hydrostatic test and a load rejection test. Results obtained were not in complete agreement with those previously presented in the literature. Examination of the three-detection method of source location reveals part of the cause of this discrepancy. Other potential mechanisms for the generation of non-locatable AE events are discussed.