IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 2: Coastal Hydraulics: Form and Function : Theoretical estimation and numerical modelling of annual energy output from a tidal barrage
Theoretical estimation and numerical modelling of annual energy output from a tidal barrage
Author : J.Q. Xia, R.A. Falconer, B.L. Lin, and G.M. Tan
Marine energy from tidal barrages is renewable and carbon-free and has the potential to make a significant contribution to future energy supplies. In this study two methods are presented to estimate the annual energy output from a tidal barrage, including the theoretical estimation based on the principle of tidal hydrodynamics, and numerical modelling based on the solution of a 2D hydrodynamic model. The proposed Severn Barrage in the UK was taken as a case study, and these two methods were applied to estimate the annual energy output. The predicted results indicated that the magnitude of the annual energy output would range from 13 to 16 TWh, which is similar to the value of 15.6 TWh in a recent report. Further investigations showed that the potential annual energy output was predicted to increase by about 15% if a higher discharge coefficient was adopted for the sluice gates, or the turbine performance was improved; however, the estimated output could exceed 16 TWh per annum if recent technological advances in both sluice gate construction and turbine performance are included.
File Size : 1,268,190 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 2: Coastal Hydraulics: Form and Function
Date Published : 01/07/2011
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