Results 251 to 260 of about 6,081 (269)

Simulation of Flow Through Pump-Turbine

1996
For years Francis — type reversible pump — turbines have been applied to many pumped storage power plants over the world. So far, they have been used under peak shaving generating operation with AFC (automatic frequency control) function during daytime, and plain pumping — energy consuming — operation at night time. Recently, an adjustable speed pump —
Charles C. S. Song, Changsi Chen, Toshiaki Ikohagi, Johshiro Sato, Katsumasa Shinmei, Kiyohito Tani   +5 more
openaire   +1 more source

Pump-Turbine Development for Geomechanical Pumped Storage Facility

Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, 2023
Abstract A significant effort is focused on developing cost-effective long-duration energy storage for integrating and expanding the use of renewable energy resources. Geo-mechanical pumped Storage (GPS) leverages the natural energy storage capability of subsurface formations to store water under pressure.
Abhay Patil, Jason Wilkes, Jordan Nielson, Bunker Hill   +3 more
openaire   +1 more source

Parametric analysis of pump-turbine sites

2009 IEEE Electrical Power & Energy Conference (EPEC), 2009
Although no new pump-turbine developments have been built on the North American continent since the Rocky Mountain 850MW facility was commissioned in 1995 (1), there is a renewed interest in their development, driven by the need to firm up energy derived from wind, run-of-river small hydro and coal developments as at North Eden, where a 700MW facility ...
openaire   +1 more source

Numerical Optimization of High Head Pump-Turbines

1996
In order to cope with the technical challenges of high head pump-turbines, new methods like simultaneous engineering and numerical studies are required. In this paper the application of simultaneous engineering is shown with an example, as well as typical pump-turbine concepts and design features.
H. Buchmaier, B. Quaschnowitz, W. Moser, D. Klemm   +3 more
openaire   +1 more source

Experimental study of instability characteristics in pump turbines

Journal of Hydraulic Research, 2018
Experiments in a medium specific-speed pump turbine scaled model are performed to investigate instability characteristics in pump mode, namely the head-drop phenomena.
Hongjuan Ran, Xianwu Luo
openaire   +1 more source

Transient Analysis of Variable-Pitch Pump Turbines

Journal of Engineering for Power, 1967
A method of analyzing the transient behavior of a pump turbine with variable-pitch blades is presented. A series of equations that describe the behavior of the unit during the transient period is found by interpolation of the unit’s characteristic. These equations are combined with the method of characteristic solution to the waterhammer equations to ...
openaire   +1 more source

Performance Characteristics of Francis Type Pump-Turbines

Journal of Fluids Engineering, 1956
Abstract The object of this paper is to bring to the attention of operating companies and consulting engineers some general hydraulic characteristics of developed Francis type pump-turbines in order to assist them in designing and evaluating proposed installations.
openaire   +1 more source

Pump-turbine addition at TVA hiwassee hydro plant

Electrical Engineering, 1956
Studies in preparation for the installation of a second unit at Hiwassee Dam showed that the 26-per-cent additional installed cost of a pumpturbine-type unit was justified by economic and operating advantages. Design and operation characteristics of this 80,000-hp unit, as well as the field test to begiven after initial operation, are discussed.
L. R. Sellers, J. E. Kirkland
openaire   +1 more source

Loss Analysis for Pump-Turbine

The proceedings of the JSME annual meeting, 2000
Takanori NAKAMURA, Koutarou TEZUKA, Yasuyuki ENOMOTO   +2 more
openaire   +1 more source

Voith to upgrade Spanish pump turbines

World Pumps, 2020
openaire   +1 more source