References - Test rig acc. IEC / ISO
Examination of pump turbines on test rig acc. to IEC 60193
- Examination on 4-quadrant test rig acc. to IEC 60193
- Five variants of runner types
- turbine operation chart, hydraulic efficiency, cavitation,...
Rim-lip-seal of a STRAFLO Kaplan turbine
Test rig investigation of the wear behaviour of the rim-lip-seal for Straflo Kaplan turbines operated in pure water and in sediment-laden water.
Entwicklung einer Diagonalpumpe
- Wettbewerbs- u. Marksanalyse
- 3D-CFD-Simulationen
- Modelltest nach IEC-Normen
- Ergebnis: Hoher Wirkungsgrad
Test rig operation of a pump as turbine
- Efficiency measurements at various operation points
- Cavitation behaviour
- Possible improvements of the pump as well as new findings on the start-up behaviour of the pump in turbine mode
Diamond-coated mechanical seal for boiler feed water pumps
- Examination of eletrical corrosion
- Long-term test > 27.000 operation hours
- Mechanical seal as newly installed
Experimentelle Untersuchung der „S-Schlag“-Instabilität von Pumpturbinen
- Stabilitätsprobleme im Teillastbereich
- Pumpturbinenmodell am 4-Quadranten-Prüfstand nach IEC 60193
- Untersuchung mit Highspeed Stereo PIV-Messungen
Measurements of DN150/DN200 control valves
- Target: measurement of flow behaviour as well as acoustic effects of the occurring cavitation
- Acoustic measurements according to IEC 60534
- Assessment of frictions losses (kv value)
- Determination of the cavitation behaviour by means of acoustic measurements
Measurements of heat exchangers for district heating network
- Problem: pressure losses
- Optimisation: plate arrangement
- Result: 50% reduction of pressure losses
