Turbines
WE DO RESEARCH, DEVELOPMENT and OPTIMIZATION: hydraulics for turbines / pump turbines / pumps, nozzles, spirals, valves, efficiency, life cycle, water hammer, turbine in- and outtake, surge chamber, penstock, acceptance tests acc. to IEC standards, trouble shooting and refurbishment - covering the range from small to large hydro power plants.
Selection of references
Development of hydraulics for a vertical Kaplan turbine
- maximum flow Qmax = 16 m³/s
- nominal head Hdesign = 3 m
- nominal speed n = 115 U/min
Entwicklung einer Kaplan-Rohrturbinen-Hydraulik
- Ausbaudurchfluss QMax = 8,5 m³/s
- Nennfallhöhe HNenn = 9,45 m
- Schnellläufigkeit n = 428 U/min
Experimentelle Untersuchung einer Durchströmturbine
- Fallhöhe: HNenn = 21.8 m
- Durchfluss: QMax = 280 l/s
- Drehzahl: nNenn = 500 U/min
Wirkungsgradmessung Wasserkraftwerk: Pelton-Turbine
- Überprüfung der Garantiewerte des Herstellers
- „Clamp on“-Ultraschall-Messsystems in zweipfadiger V-Messanordnung
- Anlagenkennlinie und Rohrreibungsbeiwert der Druckrohrleitung
Redesign of hydraulics for a Kaplan turbine
- Basic design, one-dimensional, on 6 partial flow turbine wheels
- Starting geometry defined by means of the Scholz-Czibere procedure
- Definition of blade and profile length by means of Thomann`s references
Numerische Simulation Einlaufstruktur Kaplan-Z-Turbine
- Fallhöhe Hmax = 22,50 m
- Max. Durchfluss Qmax = 14 m³
- Drehzahl n = 375 rpm
- Ziel: Optimierung Strömungsverluste und Kraftfluktuationen im Bereich der Leitbleche/Maschinenwelle
Rekonstruktion von Kaplan-Laufschaufeln
- Oberflächenscan
- Geometrische Rekonstruktion
- Verschleißrücklage
CFD calculations for a hydro power plant
3 parallel EOS-700 bulb turbines (with one fixed and one variable blade position, nominal diameter 700 mm)
Development of new turbine hydraulics for a hydro power plant
Based on the calculation results of the project “CFD calculations for a hydro power plant” new, semi-regulated Kaplan turbine hydraulics for an EOS-700 turbine were developed.
Development of hydraulics for a Francis turbine with nq=66
- The runner hydraulics is based on approaches determined by SIERVO and THOMANN.
- The blade profiles base on the 4-digit NACA profile NACA-0006.
- Comparison of the efficiencies of different runner blades.
Hydraulikneuentwicklung einer historischen Francis-Turbine
- Fallhöhe H = 5m
- Qnenn (80 %) = 24 m³/s
- Spezifische Drehzahl nq = 80,26 U/min
- Ergebnis: Wirkungsgradsteigerung bis zu 14%
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,...
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
Design of the hydraulics for a Kaplan residual water turbine
- maximum flow QMax=1.5m³/s
- minimum flow QMin=0.8m³/s
- specific speed nq=300U/min
- diameter D=0.65m
- 7-pole generator
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.
Pelton turbine: distribution pipeline & cup geometry
- Geometry development
- Optimisation cup geometry
- Optimisation of jet quality
Status report on the development of a dynamic pressure machine
- Field of application: Small Hydro Power and Micro Hydro Power
- Requirements: streaming waters with low heads and fluctuating water volumes
e
We do research, development and optimisations for
- Hydraulics for turbines / pump turbines / pumps
- Acceptance tests acc. to IEC standards
- Nozzels
- Spirals
- Turbine in- and outtakes
- Valves & fittings
- Runners, guide vanes
- Water hammer
- Seals
- Surge chamber
- Penstock
- Refurbishment
- Efficiency
- Life cycle
- ...
We solve your challenge. Contact us.