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All Journal International Journal of Applied Power Engineering (IJAPE) Jurnal Teknologi Jurnal Kelautan Nasional
Rizki Mendung Ariefianto
Department Of Electrical Engineering, Universitas Brawijaya, Jl. Veteran, Ketawanggede, Lowokwaru, Malang, Indonesia 65145
Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science

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Analisis Turbin Darrieus Tipe V-Shaped Blade Untuk Aplikasi Konverter Energi Arus Laut Menggunakan Software QBlade Rizki Mendung Ariefianto; Rini Nur Hasanah; Wijono Wijono
Jurnal Kelautan Nasional Vol 17, No 2 (2022): AGUSTUS
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.647 KB) | DOI: 10.15578/jkn.v17i2.10842

Abstract

Turbin tipe Darrieus merupakan salah satu jenis turbin sumbu vertikal yang memiliki prospek menjanjikan dalam pengembangan turbin hidrokinetik, salah satunya dalam aplikasi untuk pembangkit arus laut. Berbagai penelitian telah dilakukan untuk meningkatkan performa turbin Darrieus yang pada umumnya memiliki performa efisiensi dan self-starting lebih rendah dibandingkan jenis turbin sumbu horisontal. Tujuan penelitian ini adalah untuk mengevaluasi performa turbin Darrieus yang ditinjau dari aspek efisiensi dan kemampuan self-starting. Skenario pengujian berupa penerapan bentuk foil dan blade swept angle (γ) pada desain turbin dipertimbangkan dalam penelitian ini. Pada evaluasi pengaruh bentuk foil, diterapkan foil NACA 634021 sebagai foil utama kemudian dibandingkan dengan foil lain seperti NACA 0018. Sedangkan evaluasi pengaruh blade swept angle, dipertimbangkan nilai γ = 30° agar menghasilkan turbin dengan bentuk V-shaped blade yang kemudian dibandingkan dengan turbin Straight blade dengan γ = 0°. Software QBlade digunakan untuk mensimulasikan turbin V-shaped blade selama kondisi kerja. Hasil simulasi menunjukkan bahwa turbin V-shaped blade yang berbasis foil NACA 634021 mampu mencapai efisiensi terbesar yaitu 0,425 dan memiliki self-starting yang baik pada cut-in speed arus laut sebesar 1,765 m/s. Selain itu, turbin ini juga mampu menghasilkan daya sebesar 27,64 kW pada kecepatan ratingnya dengan rata-rata peningkatan daya tiap 1 m/s arus laut sebesar 2,51 kW.
OPTIMASI TURBIN ARUS LAUT TIPE V-SHAPED BLADE DENGAN MEMPERTIMBANGKAN BLADE ASPECT RATIO DAN SOLIDITY Rizki Mendung Ariefianto; Rini Nur Hasanah; Wijono Wijono
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.1-12

Abstract

The V-shaped blade turbine is one of the turbine models with good self-starting capability, although its efficiency is still standard. Various studies, especially of foil shape and blade swept angle variations applied to V-shaped blade turbines, have been carried out to improve its performance. This study aims to optimize the ability of a V-shaped blade turbine in terms of efficiency and self-starting by investigating the effect of blade aspect ratio and solidity through several test scenarios. NACA 634021 foil and a blade swept angle of 30° were used to create the main form of a V-shaped blade turbine. The simulation results using the QBlade software show that the blade aspect ratio and solidity significantly affect the efficiency and self-starting capability of the V-shaped blade turbine. Finally, the optimal design configuration was achieved on the turbine dimensions with a height of 3.1344 m, a radius of 1.8288 m, a chord foil length of 0.2134 m, and a total of four blades. This configuration can achieve maximum efficiency of 0.441 and fulfills self-starting at the minimum tip speed ratio limit of 0.7.
Performance evaluation of several basic types of DC-DC converters for small-scale wind turbine connected to isolated load Rizki Mendung Ariefianto; Rini Nur Hasanah; Hadi Suyono; Tri Nurwati; Eduard Muljadi; Hazlie Mokhlis
International Journal of Applied Power Engineering (IJAPE) Vol 15, No 2: June 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v15.i2.pp674-691

Abstract

Small-scale wind turbines (SSWT) encounter a primary issue in power extraction, making the integration of DC-DC converters with maximum power point tracking (MPPT) crucial for performance enhancement. This study focuses on an evaluation of basic DC-DC converters, which offer many benefits when applied to SSWT systems. By considering efficiency, suitability, and electrical stress aspects, six DC-DC converter topologies consisting of boost, buck-boost, SEPIC, Cuk, zeta, and Luo, were tested under perturb and observe (P&O) and incremental conductance (INC) MPPT strategies. A 6.5-kW SSWT system, including a DC-DC converter and MPPT was designed in detail using PSIM. The results show that boost converter demonstrated the best overall performance in terms of power extraction, efficiency, and stress reduction, although its operation was limited to a narrower wind speed range. The zeta converter achieved efficiency and power extraction comparable to the boost converter with stable operation over a broader wind speed range, while the buck–boost converter offered step-up/step-down capability but experienced higher voltage and current stress. The SEPIC and Cuk converters showed low overall performance compared to others, whereas the Luo converter was better suited for low-wind-speed conditions.
Co-Authors Eduard Muljadi Hazlie Mokhlis Nurwati, Tri Rini Nur Hasanah Suyono, Hadi Wijono Wijono