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

Abstract

The blade is the most critical part of turbine design because it is used to convert kinetic to mechanical energy. In general, the blade types used for ocean wind turbines are taper and taperless blades, like those operated 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 wind 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 in sequent are 0.47, 1535 watts, and 786 watts, while the taperless blades have 0.44, 1437 watts, and 736 watts.

Analysis of Blade Quantity Variations on Horizontal Axis Wind Turbine Type Taperless Airfoil SG6043 Using Blade Element Momentum (BEM)

“…The Q-Blade yields power coefficient (Cp) outputs based on the TSR assessments. To derive position, chord, and twist values, the subsequent parameter equation is employed [6]. The initial parameter required for this calculation involves determining the blade element's position (r), as indicated by the following equation [7].…”

Design of a Semi-Inverse Taper Horizontal Blade Wind Turbine and Its Potential use at Gajah Beach Padang

“…Horizontal [8] Sebagaimana yang dijelaskan sebelumnya, bilah Invers Taper merupakan bilah dengan sudu yang ukurannya ujungnya lebih besar dibandingkan pangkal, bilah ini diketahui cocok digunakan pada daerah yang kecepatan angin [9]. Namun, Penggunaan bilah ini masih kurang maksimal karena batas kerjanya tersebut dan peluang bilah ini rusak saat dikenai angin dengan kecepatan tinggi cukup besar.…”

Experimental Study on the Effect of Foil Guide Vane on the Performance of a Straight-Blade Vertical Axis Ocean Current Turbine

“…Thus, ocean currents are believed to be able to turn turbines and generate generators to produce electricity. Turbines are the primary technology capable of extracting kinetic energy from ocean currents to create generators to produce electricity [4,5]. In general, the turbines used by researchers worldwide are operated at high current speeds.…”