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PRIMRE/Databases/Projects Database/Devices/Hales Turbine
From Open Energy Information
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Hales Turbine
The Hales Turbine design overcomes this problem by having four points of support, one at each corner of the turbine power blade, while it is under load, so can operate safely in areas of high turbulence and load stress. As side drive turbines rotate slowly with the blades only operate in a drag type Mode, which means the blade turns at the speed of the water flow, the blades can be made stronger to withstand the high stress loads created by the water flow, unlike propellers and foils which also try to produce a lift effect to improve their performance, they have to be finely shaped and angled because of such a small contact area between blades and the water flow to absorb the energy. The Hales Tidal Turbine uses this side drive concept and adds new innovative ideas to improve its output and potential use, such as special forms of ducting are being researched to allow water flow concentration, thus allowing small turbines to be used in even slow water flows such as the English Channel
Additional Information
Device Status
Is the device actively being developed or is available for purchase (active)? Or has development or support ended (inactive)?
Inactive
Technology Type
Power Take-Off
Mechanism that converts the motion of the prime mover into a useful form of energy such as electricity, learn more
Direct Drive Generator
Surface ExpressionFalse
Estimated TRL
Estimated Technology Readiness Level scale from 1 to 9 with 9 being the most mature technology
TRL Last updated: 22 June 2022
2
Energy Resource
- Ocean Current
Water Column Position
Surface
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Submerged - Mid
Entire Water Column
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Submerged - Bottom
Last Modified
10 October 2024
Citation Formats
“Hales Turbine.” Marine Energy Projects Database: Devices, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Hales_Turbine. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Devices. <year>. "Hales Turbine." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Hales_Turbine.
