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What type of cross sections does wind turbine blades have?(a) Penta hedral cross section(b) Air foiled type cross section(c) Radar cross section(d) Turbo cross sectionI got this question in quiz.I need to ask this question from Horizontal Axis Wind Mill topic in portion Wind Energy of Energy Engineering

Answer»

Right choice is (b) Air foiled type cross SECTION

Easiest explanation: WIND turbine blades have an air foiled type of cross section and a variable pitch. They are slightly twisted from the outer tip to the root in order to reduce the tendency for the rotor to stall. The blades can ALSO have CONSTANT chord length.



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