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Performance Enhancement of Savonius Wind Turbine by Multicurve Blade Shape by Minh Banh Duc; Hung Tran the; Nguyen Dinh Duc; Trinh Chu Duc; Anh Dinh Le is a Engineering article available to read on EtoBox.

What is Performance Enhancement of Savonius Wind Turbine by Multicurve Blade Shape about?

This study proposes a novel blade configuration, made with a multicurve profile, to further maximize the advanced benefits and the performance of a Savonius turbine for energy harvesting applications. The advantages of the presently designed blade are proved by a detailed analysis of the flow mechanism and the performance through a sequence of two-dimensional (2D) unsteady computational fluid dynamics simulation. The remarkable finding states that the main blade section with a length ratio of 0.9 combined with an elliptical auxiliary section effectively enhances the positive wind flow phenomena around the blade, especially for the returning position, which either smooths the flow or reduces the pressure on the blade's convex side. As a result, greater torque is obtained by the present configuration, responding to the improvement of the power generation to 0.24 -about 5.5% at the low TSR = 0.8 and up to 0.28 -about 185% at the high TSR = 1.5 over the conventional configurations. The effectiveness of the presently designed blade is further proved with more than 20% improvement in self-staring speed through six degrees of freedom analysis. The results above state a high potential appl

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Author

Minh Banh Duc; Hung Tran the; Nguyen Dinh Duc; Trinh Chu Duc; Anh Dinh Le

Publisher

Informa UK Limited

Published

2023

Language

EN

Field

Engineering (Physical Sciences)