INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Vol 23 No 1 (2023): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi

Performance Analysis of Hydrokinetic Turbine Using Shroud Ratio Comparison under Yaw Misalignment Condition

Arwizet K (Department of Mechanical Engineering, Engineering Faculty, Universitas Negeri Padang Jl. Prof. Dr. Hamka Kampus UNP Air Tawar Barat, Kota Padang, Indonesia-25131)
Desmarita Leni (Mechanical Engineering, Engineering Faculty, Universitas Muhammadiyah Sumatera Barat Jl. Pasir Jambak No.4, Pasie Nan Tigo, Kecamatan Koto Tangah, Kota Padang, Sumatera Barat-25586)
Deviya Aprilman (Mechanical Engineering, Politeknik Raflesia Jl. S. Sukowati No. 28, Air Putih, Kecamatan Curup, Kabupaten Rejang Lebong, Bengkulu-39119)
Adriansyah Adriansyah (Mechanical Engineering, Politeknik Negeri Padang Jl. Kampus, Limau Manis, Kecamatan Pauh, Kota Padang, Sumatera Barat-25164)
Rivanol Chadry (Mechanical Engineering, Politeknik Negeri Padang Jl. Kampus, Limau Manis, Kecamatan Pauh, Kota Padang, Sumatera Barat-25164)



Article Info

Publish Date
07 Aug 2023

Abstract

This research aims to analyze the performance of hydrokinetic turbines under yaw misalignment conditions using descriptive statistical methods on coefficient of power (Cp) data. Tests were conducted at water velocities of 0.7, 0.9, and 1.1 m/s for three types of turbine shrouds consisting of turbines without shrouds, turbines with two different types of shrouds, at yaw angles from 0° to 25° with 5° intervals. The study concludes that the performance of each turbine type is significantly influenced by the combination of water flow velocity and yaw angle. The diffuser type has the highest Cp value at every yaw angle, but its performance decreases with increasing yaw angle. The Blade type has poorer performance compared to the diffuser at every yaw angle and has the best performance at a combination of 1.1 m/s velocity and 5° yaw angle. Meanwhile, the shroud type has more stable performance and is not greatly affected by variations in velocity and yaw angle. Based on the analysis of changes in average Cp values with changes in yaw angle at V 0.7 m/s, all three turbine types experienced an increase in Cp value at a yaw angle of 5, with the shroud experiencing the most significant increase. At V 0.9 m/s, the diffuser and shroud types were able to maintain their average Cp values at every yaw angle, while the blade type decreased with increasing yaw angle and experienced a significant decrease at a yaw angle of 25. At V 1.1 m/s, the diffuser and blade types experienced a decrease in performance with every increase in yaw angle, but the shroud type was able to maintain the same Cp value and even experienced a significant increase at a yaw angle of 5.

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Journal Info

Abbrev

invotek

Publisher

Subject

Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Transportation

Description

INVOTEK: Jurnal Inovasi Vokasional dan Teknologi is a double blind peer-reviewed journal for Technical, Vocasional, Education and Training (VET) related research. This journal provides full open access to its content on the principle that making research freely available to the science community and ...