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All Journal Jurnal Teknik Mesin Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Rekayasa Mesin Wahana Ilmuwan Jurnal Elemen JURNAL CRANKSHAFT Majamecha Jurnal Foundry Journal of Engineering and Technological Sciences
Sigit Iswahyudi
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Journal of Engineering and Technological Sciences

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Aerodynamic Performance and Noise Characteristics of Modified Blade Tip of Small HAWT Sigit Iswahyudi; Setyawan Bekti Wibowo; Suyitno Suyitno; Agus Suprihanto
Journal of Engineering and Technological Sciences Vol. 56 No. 5 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.5.8

Abstract

The planform design of a wind turbine blade influences its aerodynamic performance and noise characteristics, with the tip shape controlling vortex shedding, power, and noise. This study examined the tip shape’s effect on a small horizontal-axis wind turbine (HAWT). Field tests were conducted on three rotors: one with straight blades, one with low swept angle (12° and 61° sweep, 15° anhedral) blades, and one with high swept angle (32° and 72° sweep, 15° anhedral) blades. All had three blades, a tip speed ratio (TSR) of 5.24, and an NACA 4412 cross-section. The basic blade rotor and the modified blade 1 rotor had a 2.1 m diameter, while the modified blade 2 rotor had a 2.8 m diameter. The modified blades had revised tips along 10% of the radius. The results showed maximum power coefficients of 0.25, 0.2, and 0.15 for the basic blade, modified blade 1, and modified blade 2, respectively. modified blade 2 exhibited the best starting behavior, needing only 1 m/s wind speed. It also reduced low-frequency noise while increasing high-frequency noise, which is more effectively absorbed by the atmosphere. The swept blade tips lowered power performance but improved start-up and reduced low-frequency noise
Co-Authors Agung Trihasto Agus Suprihanto Ahmad, shofiyuddin Ali Arif Rahman Darmo, Adityo Noor Setyo Hadi Dewi, Rany Puspita Dwicahya, Muhammad Ridwan Rio Dzikron Muchlisin Endang Mawarsih Fajarningrum, Nurmala Dyah Kun Suharno Muhaimin, Rijal Arif Nafi', Zuhdi Baghiz Zain Nur Hayati Nurhadi Prayoga, Kurniawan Bayu Purnomo , Sigit Joko Rahman Saleh, Arif Rany Puspita Dewi Rizky Hermawan Setyawan Bekti Wibowo Setyawan, Fajar Andre Sigit Mujiarto Sutrisno, Seno Suyitno Suyitno Syarif Hidayat Taufik, Ikhwan Trisma Jaya Saputra Wandi Arnandi