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All Journal Jurnal Energi Dan Manufaktur Jurnal Polimesin
Agustinus Lolok
Universitas Halu Oleo
Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Integrasi Teknologi Pengering Surya dan Tungku Gasifikasi Biomassa Untuk Peningkatan Kualitas Beras Lukas Kano Mangalla; Agustinus Lolok; Yulius Barra Pasolon
Jurnal Energi Dan Manufaktur Vol 6 No 01 (2023): April 2023
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2023.v16.i01.p06

Abstract

Teknologi pengeringan pascapanen produksi pertanian sangat penting dikembangkan untuk menjamin kualitas dan penyimpanan bahan. Pengembangan teknologi pengeringan energi matahari masih terbatas oleh kondisi alami sehingga tidak berlangsung kontinu. Karena itu pengeringan ini perlu diintegrasikan dengan unit sumber energi lainnya seperti biomassa, angin dan lain-lain. Kajian ini menganalisis secara comprehensive kedua sumber energy yang potensial dikembangkan di Desa Pombulaa Jaya Kecamatan Konda Sulawesi Tenggara sebagai daerah yang memiliki lahan pertanian khususnya padi sawah yang cukup luas. Dalam artikel ini disajikan tinjauan sistematik dari konsep dasar teknologi pengeringan matahari yang dikombinasikan dengan pemanas energi biomassa limbah panen untuk pengeringan pasca panen khususnya gabah padi sawah. Dilakukan pula pengujian distribusi perpindahan panas dalam ruang pengeringan dengan backup biomassa serta mendiskusikan kualitas produk pengeringan yang dipengaruhi oleh temperature, kandungan air bahan (moisture) dan ketebalan lapisan gabah. Pengembangan desain dan proses optimalisasi distribusi panas matahari sangat penting untuk meningkatkan kualitas produksi pertanian pasca panen. Hasil kajian ini merupakan bagian dari kegiatan Program Matching Fund tahun 2022
Effect of blade number on the performance of an H-rotor vertical axis wind turbine under low wind speed conditions Agustinus Lolok; Lukas Kano Mangalla; Bahdin Ahad Badia
Jurnal Polimesin Vol 24, No 2 (2026): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i2.8832

Abstract

Vertical Axis Wind Turbines (VAWTs) have significant potential for small-scale wind energy applications, particularly in regions with low to moderate wind speeds. One of the key design parameters influencing VAWT performance is the number of blades. This study aims to experimentally investigate the effect of blade number on the operational characteristics and aerodynamic efficiency of a laboratory-scale vertical axis wind turbine. Three turbine configurations with 2, 3, and 4 blades were tested, each with a blade height of 25 cm and installed at 45 cm above the ground. Experiments were conducted using an axial fan with a flow straightener in a laboratory setup under wind speeds of 2, 3, 4, and 5 m/s. Measured parameters included rotational speed (RPM), torque, mechanical power, Tip Speed Ratio (TSR), and power coefficient (Cp). The results indicate that the three-bladed turbine exhibits the best overall performance, achieving a maximum power coefficient of 0.37 at a wind speed of 5 m/s and a TSR of approximately 2.2. A relative efficiency analysis confirms that the three-bladed configuration offers the most favorable balance among torque generation, rotational speed, and aerodynamic losses. These findings offer valuable insights for optimizing small-scale VAWT design and enhancing wind energy utilization in low-wind-speed environments.
Co-Authors Bahdin Ahad Badia Lukas Kano Mangalla Lukas Kano Mangalla, Lukas Kano Yulius Barra Pasolon