Results 221 to 230 of about 60,227 (266)

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, Noor Miza Muhamad Razali, Marayati Marsadek, Zainuddin Yahya, Tengku Juhana Tengku Hashim   +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

Prediction of electric-power generation at hydroelectric power plants

Power Technology and Engineering, 2013
The purpose of this study is to select and test models for prediction of electric-power generation at the Rybinsk and Nizhegorodskaya HPP with allowance for their cascade operation for the second quarter based on data (runoff-forming and atmospheric factors), which are known at the time of the prediction.
A. Yu. Aleksandrovskii, P. S. Borshch
openaire   +1 more source

Experimental investigations of a hydroelectric power plant

2016 International Conference and Exposition on Electrical and Power Engineering (EPE), 2016
The use of renewable low power sources is currently rather reduced. Utilization of some specialized software allows the operation of the low-power hydroelectric power plants in automatic regime, without local monitoring personnel, these being able to be remotely monitored and controlled.
Deaconu Sorin Ioan, Popa Gabriel Nicolae, Cuntan Corina Daniela   +2 more
openaire   +1 more source

Electronic module for small hydroelectric power plant

24th International Spring Seminar on Electronics Technology. Concurrent Engineering in Electronic Packaging. ISSE 2001. Conference Proceedings (Cat. No.01EX492), 2002
Modern automation control systems of small hydroelectric power plants provide a constant frequency on the network. This regularization is achieved through positioning of the hydraulic director device that controls both water flow and electric machine speed.
P. Drumea, M. Comes, G. Radulescu, I. Enache   +3 more
openaire   +1 more source