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Small-Scale Wind Power by Brian Plourde, John P. Abraham

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Chapter 4

Design of Savonius-Style Wind Turbines

Sukanta Roy, Ujjwal K. Saha

This chapter presents an exhaustive review of Savonius-style wind turbines. These designs spin about a vertical axis and are driven by fluid drag forces. They rotate slower than their lift-drive counterparts and create high torque. Savonius turbines are able to be used in confined spaces and in areas where wind direction changes. They are particularly suited for small-scale power generation.

The chapter details the historical development of Savonius turbines from their inception until modern days. The authors show performance characteristics and provide guidance to optimize the power-generation capability through aspect ratios, blade overlap, blade twist, multiple ...

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