Performance Improvement Of Split Savonius Rotor By CFD

Hassan, Nur Hayati (2017) Performance Improvement Of Split Savonius Rotor By CFD. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Performance Improvement Of Split Savonius Rotor By CFD.pdf - Submitted Version Download (463kB)

Abstract

Split Savonius wind turbine is a type of vertical axis wind turbine. Conventional Split Savonius wind turbine consists of two blades, advancing and returning. Advancing blade produces drag force from main flow while returning blade develops return force from opposite direction through a gap called overlap. Two types of torque are generated due to rotational motion of these blades against working fluid, positive and negative torque. Main objective of present study is to conduct a two dimensional numerical analysis between conventional Split Savonius rotor and new configurations in term of net positive torque and coefficient of performance (COP). Three new configurations are designed based on conventional Split Savonius rotor by keeping end plate diameter, overlap and aspect ratio constant. A validation study is performed by comparing torque obtained by numerical approach with torque obtained by experimental approach. Validated methodology is adopted to simulate new configurations. An improvement in COP ranging from 0.78% to 1.33% for different inlet velocities is achieved for new configuration Design 1. Other designs show negative improvement.

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