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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Techno: Jurnal Penelitian Dinamika : Jurnal Teknik Mesin Research Journal of Life Science Jurnal Pembangunan dan Alam Lestari R.E.M (Rekyasa Energi Manufaktur) Jurnal Journal of Science and Engineering Journal Of Khairun Community Services Jurnal Inovasi Teknologi Terapan
Tri Suyono
Mechanical Engineering Department, Universitas Khairun
Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation Other

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NACA 0020 Horizontal Axis Wind Turbine Design Optimization to Increase Coefficient of Power (Cp) Suyono, Tri; Umron, Amat; Harbelubun, Mohammad Muzni
TECHNO: JURNAL PENELITIAN Vol 14, No 2 (2025): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v14i2.10268

Abstract

Renewable energy is the primary solution to future energy challenges. Horizontal-axis wind turbines (HAWTs) have great potential as a source of clean energy, especially in remote areas. This study aims to optimize the number of HAWT blades to increase the Coefficient of Power (Cp) through simulation and experimental methods. Optimization is done by modifying the angle of attack and the number of blades. Aerodynamic simulations using the QBLADE software were validated through laboratory experiments with small-scale prototypes. The study calculated the harvestable wind energy using the Betz limit (59%) and the Cp range from the previous study (35-45%). The turbine's efficiency is strongly influenced by the number of blades operating based on lift, with the glide ratio being an important parameter. The turbine blade was manufactured using NACA 0020 at the Mechanical Engineering workshop at Khairun University. Testing is carried out in the laboratory to measure the relationship between the number of blades, rotor rotation, and the generator's output power. This process accounts for mechanical, generator, and heat losses. The experimental data is validated by simulation and calculation to formulate the number of blade relationships as design recommendations. Based on analyses of the relationships among Cp, Cm, and TSR, and comparisons with previous studies, the number of wind turbine blades was shown to have a significant effect on aerodynamic efficiency, initial torque, and energy conversion performance. The 2-blade turbine is well-suited to strong winds due to its high efficiency at high TSRs, but it is less stable and has low starting torque. The 6-blade turbine excels at low TSR with ample initial torque, ideal for slow winds and mechanical applications, although its efficiency decreases at high TSR. 3-blade turbines offer the best compromise, making them a top choice in commercial systems.
Desain Pengering Elektrik Untuk Pengolahan Dendeng Ikan Cakalang (Katsuwonus Pelamis) M. Muzni Harbelubun; Tri Suyono; Iwan Gunawan; Amat Umron
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.356

Abstract

Traditional drying of skipjack jerky is still widely used by MSMEs, but it is highly weather-dependent, prone to contamination, and produces less uniform quality. This research aims to design and test a prototype of an incandescent electric dryer that is simple to operate, provides controlled drying conditions, and is easy to use. The system developed is an insulated cabinet with stainless-steel mesh racks, incandescent light heaters, forced-air circulation, and temperature and humidity sensors, monitored during a 360-minute performance test with sample mass changes. The results showed that the drying chamber temperature remained stable at 43.9–49.3 °C, the relative humidity dropped from about 47% to ±30%, and the jerky mass decreased from ±917 g to ±353 g, with a final moisture content of about 30%. Compared to sun drying, electric dryers provide faster drying rates and more stable drying patterns, making the time to achieve the target moisture content and quality between batches more predictable. These findings show that the prototype is worthy of consideration as an alternative drying technology for seafood processing MSMEs and serves as a basis for further development to improve energy efficiency and product uniformity.
Co-Authors Abrar Ridwan Afiyanti, Mufidah Ahmad Fudholi Amat Umron Amin Setyo Leksono Aminudin Afandhi Aminudin Afandhi Ari Pani Desvina Ari Pani Desvina Bambang Tjiroso, Bambang Baroro, Ismatul Dimas Putra Wardani Fitra Putra Siko Hagus Tarno Handoko Handoko harbelubun, Moh. Muzni hardi, witono Hartono Hartono Herbelubun, Muh Muzni Hi. Abbas, Muhammad Fadly Iwan Gunawan Iwan Gunawan Kamaruzzaman Sopian Kifli Umar Kifli Umar Lita Asyriati Latif Majid Khan Bin Majahar Ali Mariyam Fazleena Musthafa Mufidah Afiyanti Rahmadeni Rahmadeni Rose Novita Sari Handoko Sari, Rose Novita Silvi Ikawati, Silvi Umron, Amat Witono Hardi Yendra, Rado Yogo Setiawan