Comparative Analysis of Taper and Taperless Blade Design for Ocean Wind Turbines in Ciheras Coastline, West Java

*Madi Madi  -  Energy System Engineering, Institut Teknologi Sumatera, Lampung, Indonesia, Indonesia
Tuswan Tuswan scopus  -  Department of Naval Architecture, Institut Teknologi Sepuluh Nopember, Indonesia, Indonesia
Ilham Dwi Arirohman  -  Energy System Engineering, Institut Teknologi Sumatera, Lampung, Indonesia, Indonesia
Abdi Ismail scopus  -  Department of Naval Architecture, Institut Teknologi Sepuluh Nopember, Indonesia, Indonesia
Received: 27 Aug 2020; Revised: 11 Nov 2020; Accepted: 13 Nov 2020; Published: 28 Feb 2021; Available online: 13 Nov 2020.
Open Access License URL: http://creativecommons.org/licenses/by-sa/4.0

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Abstract
The blade is the most critical part in turbine design because it is used to convert kinetic to mechanics energy. In general, the blade types used for ocean wind turbines are taper and taperless blade, like those operated by PT Lentera Angin Nusantara at Ciheras Coastline. Previous research has been analyzed the type of airfoil used in designing taper blades for ocean wind turbines using NACA 4412, which was selected as the optimal foil configuration at sea wind speeds of 12 m/s. In this study, the comparison of taper and taperless blade designs using NACA 4412 at a sea breeze speed of 12 m/s is analyzed. The comparative study with previous research has been carried out and resulted in the same graphical patterns and performance results. In this study, the focus is on investigating the performance coefficient of power, mechanical power, and electrical power. The final result shows that taper blade designs are highly recommended for use in ocean wind turbines compared to taperless blades. In general, the performance produced by taper blades is more significant than taperless blades at relatively high wind speeds. The maximum performance coefficient of power, mechanical power, and electrical power generated by the taper blades are, respectively, 0.47 watts, 1535 watts, and 786 watts, while the respective taperless blades are, 0.44 watts, 1437 watts, and 736 watts.
Keywords: Taper Blade; Taperless Blade; Ocean Wind Turbine; Ciheras Coastline; NACA 4412

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Section: Research Articles
Language: EN
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