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The X factor
18 July, 2006
The X-Blade runner technology has been designed to provide improved stability over large ranges in flow and head, as well as strong cavitation behaviour and higher efficiency levels
Increasing efficiency
15 March, 2006
Efficiency measurements of a Kaplan turbine model with a variable straight diffuser angle have been performed for angles varying from 5° to 19° at the laboratory of Vattenfall, Älvkarleby in Sweden. Michel Cervantes and Sebastian Videhult report that the results indicate a significant efficiency gain compared to conventional design for normalised discharge above 85%, up to 0.6%