Nano Science and Technology Institute
Nanotech 2013 Vol. 3
Nanotech 2013 Vol. 3
Nanotechnology 2013: Bio Sensors, Instruments, Medical, Environment and Energy (Volume 3)
Chapter 7: Renewable Energy Technologies & Bio Materials

Design and Testing of a High-Efficiency Hydrokinetic Turbine

Authors:E. Richard White, F.D. Ferguson, A.J. Asterita
Affilation:ViGYAN, Inc., US
Pages:605 - 607
Keywords:hydrokinetic, water turbine, Savonius, tidal, river, stream
Abstract:There are numerous situations in which electrical power is required for remote locations not served by utilities or where existing electrical service is compromised. This paper addresses the feasibility of power extraction from local supplies of horizontally flowing water as the solution to this problem. The proposed system is based on a horizontally oriented version of a Savonius wind turbine. It features a simple, three-bladed design with optimized geometry that features very high efficiencies for energy production. Referred to in this paper as the Waterotor, the technology enables users to generate power from flowing water in a number of environments, from small streams to ocean currents. Advantages over existing systems include: • Operates over a range of flow speeds • Mobile, requires no bottom fixtures or foundation • High coefficient of power • Environmentally/marine-life friendly (no high speed spinning blades) • Cost effective (simple to build and fully scalable) The combined components and features for the Waterotor have been verified in wind tunnel and field tests for maximum energy extraction for a water flow speed range from 1 mph to over 10 mph The efficiency rating is about 30%.
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