Results 221 to 230 of about 61,039 (271)
Some of the next articles are maybe not open access.

Hydroelectric Power Plant Trashrack Design

Journal of the Power Division, 1971
Trashracks subjected to high velocity flow should be designed to avoid operating under resonant conditions. This requires that design consideration be given to the natural frequency of the trashrack bars and the forcing frequency due to the velocity of the fluid through the trashrack. The natural frequency of a trashrack bar is primarily dependent upon
openaire   +1 more source

Hydroelectric power plants

Electrical Engineering, 1946
ELECTRIC UTILITY SYSTEMS on the North American continent derive their power supply predominantly from generating stations of either the steam-electric or hydroelectric type. It happens that in some utilities the one type predominates, while in others it may be almost or even completely absent.
openaire   +1 more source

Power Swings in Hydroelectric Power Plants

Journal of Fluids Engineering, 1940
Abstract Power swings chargeable to hydraulic turbines have been found in hydroelectric plants built as far back as 1912. However, it has only been during the last ten years that much thought has been given to such swings, their characteristics, source, and elimination. The purpose of this paper is to supply technical data on the subject
openaire   +1 more source

Stability Limits of Hydroelectric Power Plants

Journal of Energy Engineering, 1987
It is well known that the inertia of the water in the penstock is the main unstabilizing factor for the stability of a hydropower plant. Most of the analytical studies on this subject use the lumped‐system approach to include the water‐hammer effects.
Oscar F. Jiménez, M. Hanif Chaudhry
openaire   +1 more source

SITING AND DIMENSIONING OF HYDROELECTRIC POWER PLANTS

IFAC Proceedings Volumes, 1985
Abstract This paper presents a new approach to the problem of selecting a development scheme for a river valley from preliminary surveys on candidate sites. Rather than proceeding by elimination, this approach identifies the scheme which minimizes the Investment and operating costs.
openaire   +1 more source

SMALL FLOATING HYDROELECTRIC POWER PLANT

International Journal of Engineering Applied Sciences and Technology, 2011
The operation of a surface hydroelectric power plant made up with paddles that articulate with one another to form a close chain is analyzed. This chain is partially submerged in a stream of water in such a way that the drag force of the stream causes its movement.
openaire   +1 more source

The features of sustainable Solar Hydroelectric Power Plant

Renewable Energy, 2009
This work presents the main features of the new power plant that comprises the modified reversible hydro electric power plant (HE) operating together with the photovoltaic power plant (PV). Such Solar Hydroelectric Power Plant (SHE) uses solar energy as the only input for production of solar and hydro energy.
Margeta, Jure, Glasnović, Zvonimir
openaire   +2 more sources

Power Plant Performance Based on Power-Efficiency Curve of Hydroelectric Power Plant

Applied Mechanics and Materials, 2015
—Hydropower energy is widely used throughout the world. It is the only renewable energy that is presently commercially practical on the large scale. In order to maintain the hydropower plant in good condition, the performance of the power plant needs to be monitored constantly.
Anis Shazwani Zulkifli   +4 more
openaire   +1 more source

Environmental Impacts of Hydroelectric Power Plants

Journal of the Hydraulics Division, 1977
Hydroelectric power plants sited on rivers and streams change the natural conditions of these water bodies through both short-term and long-term impacts. Therefore, changes in water quality, erosion, fluctuation in water temperature and water flow, and eutrophication must be studied in planning future hydroelectric installations. The objectives of this
openaire   +1 more source

Transients In Hydroelectric Power Plants

2014
Various turbine operations, such as start-up, shut-down, load acceptance and rejection, produce transients in hydroelectric power plants. This chapter deals with the analysis of these transients. In this analysis, the conduits and related boundaries may be simulated utilizing the computational procedures and boundary conditions presented in Chapter 3 ...
openaire   +1 more source

Home - About - Disclaimer - Privacy