Results 181 to 190 of about 212,134 (210)

The effects of pumping on the energy potential of a tidal power barrage

Proceedings of the Institution of Civil Engineers - Engineering Sustainability, 2003
Low head, doubly-regulated (Kaplan) axial flow turbines are well suited to working in reverse as pumps. For good efficiency in both operations, the generating and pumping heads must be complementary. The Rance tidal power scheme in Brittany has been carrying out matched generating and pumping operations to good effect since it was commissioned in 1966.
T. L. Shaw, M. J. Watson
openaire   +1 more source

Computational Seismic Fracture Synthesis of Tidal Barrage using Enhanced Isotropic Plasticity Damage Mechanics and Coupled Lagrangian-Eulerian Multiphase Interaction

arXiv.org
Mega-engineered hydraulic structures like dams and barrages are critically sensitive to strong ground motion if constructed within the vicinity of triggered fault lines. Collapse post excessive deformation leads to severe environmental impact.
Sayan Chowdhury, S. Alluri, J. Jayaprakash, Fang Yenn Teo, M. Umashankar   +4 more
semanticscholar   +1 more source

Simplified Tidal Barrage for Small-Scale Applications

Journal of Energy Engineering, 1997
The performance of a tidal barrage with no gates and continuous flow through its turbines has been investigated by simulation. Double-effect generation could be achieved with an axial-flow turbine that reverses direction after each half of the tidal cycle.
openaire   +1 more source

Hydrodynamic impact of a tidal barrage in the Severn Estuary, UK

Renewable Energy, 2010
Abstract The Severn Estuary has a spring tidal range approaching 14 m, which is among the highest tides in the world. Various proposals have been made regarding the construction of a tidal barrage across the estuary to enable tidal energy to be generated. The aim of the current study is to investigate the impact of constructing a tidal barrage on the
Junqiang Xia, Roger A. Falconer, Binliang Lin   +2 more
openaire   +1 more source

The Effect of the Tidal Barrage on the Flows and Mixing in the Tees Estuary

1999
Abstract The Tees estuary has recently been transformed by the construction of a barrage which has reduced the tidal length from 44 km to 18 km. The barrage now restricts the upstream movement of the salt resulting in the formation of a new freshwater region to landward. Surveys undertaken before and after construction of the barrage,
A M Riddle, R E Lewis
openaire   +1 more source

Tidal Velocities Across a Partly-Completed Barrage

Journal of the Hydraulics Division, 1967
The maximum velocities occurring over a partly-completed barrage during each tide cycle are considered. A simplified mathematical model is proposed and solutions using this model can readily be obtained using a computer. It is shown that results obtained (using the proposed model) for a given shape of tide curve can be generalized using a ...
openaire   +1 more source

The optimum position for a tidal power barrage in the Severn estuary

Journal of Fluid Mechanics, 2009
G. I. Taylor's approximate analytical solution for the tidal flow in the Severn estuary is extended to find the optimum location for a tidal power barrage, from the power point of view. It appears to be at the lowest point in the estuary, between Ilfracombe and Gower – contrary to earlier computations.
openaire   +1 more source

12. Environmental aspects of tidal power barrages in the Severn Estuary

1987
T. Shaw
exaly   +2 more sources

Optimal control of tidal barrages considering economic factors

Proceedings of the European Wave and Tidal Energy Conference
Tidal barrage power plants generate power by virtue of the variations of the tidal elevation throughout the day. A tidal barrage consist of a dam, with turbines and sluice gates, that separates an inner basin from the sea, creating a hydraulic head between the inner basin water level and the sea water level. This head drives water through the turbines,
Agustina Skiarski, Nicolas Faedo, John Ringwood   +2 more
openaire   +1 more source

“Firm” power from an integrated tidal barrage network

International Journal of Ambient Energy, 1994
SYNOPSIS It is convenient, in the present period of (more than) adequate conventional electricity generation, to accept renewable sources of supply as merely “providers” of the commodity “as and when” the renewables' prime movers receive the necessary impetus to generate. The Non-Fossil Fuel Obligation (NFFO) stimulates this view by seeking to maximise
openaire   +1 more source