Korto Cavitation Services
Know-How for Model Tests
Why vibro-acoustical addition to common test procedures?
Assessment of cavitation segments hidden to observation
Quantification of visually reached cavitation description
In particular, reliable quantitative comparison of different model versions
Quantitative prediction of cavitation intensity on the prototype
An illustration: Comparison of the three models for the same turbine project
Within a plan to improve the cavitation quality of a turbine in operation, its model was tested, and two modifications were conceived, and their models were also tested. This is a summary of the results in the simplest form:
The two new versions are much better than the version currently in use.
In most operation points, the two new versions are quite similar.
However, in the high-head high-flow operation, the middle version tends towards increased cavitation intensity (the yellow arrows).
Even if such an increase of cavitation intensity is considered acceptable, the New runner/New guide vanes-version is recommended.
The reason: The potential inaccuracy in the model-to-prototype prediction and in the prototype machining might provoke stronger cavitation on even lower loads.
Set of sensors, vibro-acoustical processor, interface with the test-rig processor and the laboratory data base
This is incorporated into a common test equipment and procedure and does not require any action of the operator.
With some additions, the system can be used for the on-site vibro-acoustical diagnostic tests, too.
Services offered to the turbine manufacturers and hydraulic laboratories
For the vibro-acoustical cavitation tests:
Delivery of the full equipment for the model cavitation tests
Delivery of the additions needed for the on-site cavitation tests
Alternatively, for both: Delivery of the full application software & the detailed specifications of the hardware
Instruction documentation, schooling
Assistance at the installation
Introductory assistance at the interpretation of the tests results
For the permanent on-site cavitation monitoring:
Delivery of a prototype of the cavitation monitoring system
Alternatively, delivery of the software & detailed specifications of the hardware
For both: Licence for the use of the patented solution