Publication: Power optimization of 2d cylindrical deflector with attached splitters and barrier on savonius turbine through taguchi method
| datacite.subject.fos | oecd::Engineering and technology::Mechanical engineering::Aerospace engineering | |
| dc.contributor.author | Mahizam, Mohamad Hafizul Fikri | |
| dc.date.accessioned | 2024-11-26T04:06:46Z | |
| dc.date.available | 2024-11-26T04:06:46Z | |
| dc.date.issued | 2024-06-01 | |
| dc.description.abstract | Vertical axis wind turbines (VAWTs) have a vertical rotor axis, designed to generate electricity from wind energy. The primary reason for the low efficiency of Savonius turbines is the negative torque produced by the returning blade. Savonius turbines rotate perpendicular to the wind, relying on drag forces between the advancing and returning blades for efficiency. Thus, the study proposes a novel design of a cylindrical deflector with splitters and a barrier to offset the flow field to the returning blades. This optimization is achieved through a comprehensive approach involving computational fluid dynamics (CFD) simulations and the Taguchi optimization method. CFD is employed to assess the power performance of the turbine, serving as a crucial input for the subsequent Taguchi optimization analysis. The Taguchi method is then utilized to identify the optimal combination of specified characteristics, including the length of the barrier (Ls/D), the barrier attachment angle (α), and the geometric shape of the cylinder deflector with a splitter and a barrier. The tip speed ratio (λ) for this study is fixed at the λ = 1. The simulations and additive model show that the optimal combination involves a cylindrical deflector with dual wake splitters positioned at the top and middle. The deflector is parallel to the flow, and a barrier at its bottom is perpendicular to the flow. The optimal configuration has Ls/D ratio of 0.9 and a barrier attachment angle (α) of 10°. This ideal combination yields a power coefficient of 0.459, indicating a 61% performance increase compared to the 0.284 power coefficient of the double wake splitter deflector. | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/20814 | |
| dc.language.iso | en | |
| dc.title | Power optimization of 2d cylindrical deflector with attached splitters and barrier on savonius turbine through taguchi method | |
| dc.type | Resource Types::text::thesis::master thesis | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia |