Mesure de la vitesse d'érosion. Bilan des essais industriels à la Roche Bat l'Aigue avec le Decaver

Measurement of erosion rate. Results of industrial tests conducted at la Roche Bat l'Aigue with the Decaver

¹ Laboratoire de génie électrique de Paris
² Electricité de France, Service de la production hydraulique

Abstract

The Decaver (an erosive cavitation detector), invented and used at the laboratory by Mr Chincholle, Professor at the Paris electrical engineering Laboratory, makes it possible to determine, in certain conditions, the erosive intensity of cavitation. A first assessment of this device in an industrial environment has been made on the G3 wheel frame at La Roche Bat l'Aigue. This article relates to the tests and the results obtained, especially determining a half-load erosion maximum, whatever the nature of outdoor weather conditions (water temperature, muddled water... ), whilst at full load the erosion is negligible.