Upper Limit for Hydropower in an Open-Channel Flow
Publication: Journal of Hydraulic Engineering
Volume 137, Issue 11
Abstract
It is proved on the basis of the axiomatic energy equation that the theoretical upper limit for the hydropower gained by a water wheel or turbine per unit width in a rectangular open channel cannot exceed by any means in which = effective water head, which is the sum of specific energy and the drop of ground level ; = density; and = gravity body force. As a dimensionless measure, a coefficient of performance or harvesting factor is introduced that is an analogue to the one introduced by Albert Betz for wind turbines.
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References
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 137 • Issue 11 • November 2011
Pages: 1536 - 1542
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jul 8, 2009
Accepted: Jan 7, 2011
Published online: Jan 10, 2011
Published in print: Nov 1, 2011
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