Prediction of erosion due to cavitation in hydraulic machinery

Informazioni relative al progetto

ID dell’accordo di sovvenzione: BREU0534

Progetto chiuso

Data di avvio 1 Gennaio 1992

Data di completamento 1 Ottobre 1995

Finanziato da

• Specific research and technological development programme (EEC) in the fields of industrial manufacturing technologies and advanced materials applications (BRITE/EURAM), 1989-1992

Costo totale

Nessun dato

Contributo UE

Nessun dato

Coordinato da

ACB
France

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Risultati sfruttabili

Method to predict erosion due to cavitation in hydraulic machines

A methodology has been developed which gives a prediction of the life duration of the metallic walls of hydraulic machines and components submitted to cavitating flows. Typical fields concerned are: manufacturers and users of pumps, turbines, propellers, vanes, etc. The methodology consists of: performing local short duration measurements of the hydraulic cavitation intensity (HCI) on small scale models of the system; scaling up the results to the flow condition of the real machine; submitting the tested material to the predicted HCI on a special hydraulic rig; deducing from this reproduction the expected mass loss curve of the machine. Typical applications of the methodology will be reduction of the size (then cost) of the machines, preventive maintenance, supervision of machines in service and reduction of civil engineering work of hydraulic power plants.