Numerical Analysis of Vertical Axis Tidal Turbine: A Comparison of Darrieus and Gorlov Type

Akhmadi Firman Sasmita*, Nu Rhahida Arini, Dendy Satrio

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Tidal current energy is a natural resource which can replace fossil energy. A vertical-Axis tidal turbine is a device that can be used to extract tidal current energy. However, the influence of the vertical axis tidal turbine is not fully understood. Under the actual condition, the vertical axis tidal turbine produces a high torque fluctuation, making the turbine power coefficient low. This study aims to numerically analyze the performance of vertical axis tidal turbine straight blade (Darrieus type) and helical blade (Gorlov type) and the blade inclination angle effect to improve the power coefficient of vertical axis tidal turbines. 3D CFD models of vertical axis tidal turbines developed using OpenFOAM software-the blade profile using NACA 0012 with a given tip speed ratio (TSR) 2.2. The simulation result of a turbine with a straight blade and helical blades 55°, 65° is compared. The results show the advantages of the helical blade over the straight blade, including the significantly reduced torque fluctuations: where the TRF is reduced from 1.288 up to 0.6204. The power coefficient increases from 23% to 25%. Therefore, a vertical-Axis tidal turbine with a helical blade has a smoother torque fluctuation and a better power coefficient. The uniqueness of this research is compared to previous studies where the turbine was analyzed at a flow rate corresponding to ocean in Indonesian with a flow velocity of 2 m/s. In this study, a variation of the angle of inclination of the blades was carried out on the Gorlov-Type turbine so that it could determine the inclination angle Optimal blade for the Gorlov-Type turbine.

Original languageEnglish
Title of host publicationIES 2023 - International Electronics Symposium
Subtitle of host publicationUnlocking the Potential of Immersive Technology to Live a Better Life, Proceeding
EditorsAndhik Ampuh Yunanto, Afifah Dwi Ramadhani, Yanuar Risah Prayogi, Putu Agus Mahadi Putra, Maretha Ruswiansari, Mohamad Ridwan, Farida Gamar, Weny Mistarika Rahmawati, Rusli Muhammad Rusli, Fitrah Maharani Humaira, Ahmad Firyal Adila
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages26-31
Number of pages6
ISBN (Electronic)9798350314731
DOIs
Publication statusPublished - 2023
Externally publishedYes
Event25th International Electronics Symposium, IES 2023 - Denpasar, Indonesia
Duration: 8 Aug 202310 Aug 2023

Publication series

NameIES 2023 - International Electronics Symposium: Unlocking the Potential of Immersive Technology to Live a Better Life, Proceeding

Conference

Conference25th International Electronics Symposium, IES 2023
Country/TerritoryIndonesia
CityDenpasar
Period8/08/2310/08/23

Keywords

  • Darrieus Turbine
  • Gorlov Turbine
  • Helical Blade
  • Ocean Renewable Energy
  • Straight Blade
  • Vertical Axis Tidal Turbine

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