Variation Number of Blades for Performance Enhancement for Vertical Axis Current Turbine in Low Water Velocity in Indonesia

Madi, Shade Rahmawati, Mukhtasor, Dendy Satrio, Ahmad Yasim

2019

Abstract

Asosiasi Energi Laut Indonesia (ASELI) has provided the results of the ratification of the energy potential of ocean currents in Indonesia amounting to 17,989 MW. This amount is very large considering that Indonesia is classified as in low water velocity. The vertical axis current turbine is proposed by many researchers because they have lower performance than the horizontal axis current turbine. So this study proposes research to improve the performance of the vertical axis current turbine for low water velocity by varying the number of blades. The type of blade NACA 634021 chose because has good performance for the vertical axis current turbine of Darrieus type. The model of the turbine is simulated by Computational Fluid Dynamics (CFD) with variations of the number of blades namely, 3, 4, and 5. The totals of the statistic element of meshing are 16,090, 167,020, and 174,375 at the number of blades 3, 4, and 5, respectively. The inlet velocity set at 1.5 m/s and tip speed ratio (TSR) are 1.5, 2, and 2.5. The final results of this study show that the blade numbers can improve the performance of the turbine model on all TSR ranges. The blades 4 and 5 are increased by 21.8% and 15% respectively from the blades 3 on TSR 2.5. The highest performance is obtained by the number of blades 4 on TSR 2.5 with the value of the power coefficient (Cp) 0.26.

Paper Citation

in Harvard Style

Madi., Rahmawati S., Mukhtasor., Satrio D. and Yasim A. (2019). Variation Number of Blades for Performance Enhancement for Vertical Axis Current Turbine in Low Water Velocity in Indonesia. In Proceedings of the 7th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN, ISBN 978-989-758-516-6, pages 47-53. DOI: 10.5220/0010047900470053

in Bibtex Style

@conference{isoceen19,
author={Madi and Shade Rahmawati and Mukhtasor and Dendy Satrio and Ahmad Yasim},
title={Variation Number of Blades for Performance Enhancement for Vertical Axis Current Turbine in Low Water Velocity in Indonesia},
booktitle={Proceedings of the 7th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN,},
year={2019},
pages={47-53},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010047900470053},
isbn={978-989-758-516-6},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management - Volume 1: ISOCEEN,
TI - Variation Number of Blades for Performance Enhancement for Vertical Axis Current Turbine in Low Water Velocity in Indonesia
SN - 978-989-758-516-6
AU - Madi.
AU - Rahmawati S.
AU - Mukhtasor.
AU - Satrio D.
AU - Yasim A.
PY - 2019
SP - 47
EP - 53
DO - 10.5220/0010047900470053