HIGH EFFICIENCY ROTOR BLADES FOR A FLUID TURBINE
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app pub date -
Apr 1, 2011
filing date -
Mar 23, 2007
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Abstract
A shrouded fluid turbine includes an impeller surrounded by a turbine shroud. The turbine shroud has a plurality of mixing lobes on a trailing edge, resulting in the trailing edge having a circular crenellated shape. An ejector shroud is located downstream of the turbine shroud, an inlet end of the ejector shroud surrounding the mixing lobes of the turbine shroud. The impeller is a rotor/stator assembly. In particular, the rotor comprises a rotor hub formed from a cylindrical sidewall and has seven rotor blades extending radially from the hub. It has been found that seven rotor blades optimizes the total-to-total efficiency of the shrouded fluid turbine.
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