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All Journal INOVTEK POLBENG International Journal of Marine Engineering Innovation and Research Journal of Safety, Health, and Environmental Engineering Jurnal Cakrawala Maritim Proceedings Conference on Marine Engineering and its Application PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Priyo Agus Setiawan
Politeknik Perkapalan Negeri Surabaya
Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Transportation

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Simulation of Overlap Effect on Savonius Wind Turbine Performance by Varying Cylinder Distance in Front of Returning Blade Projek Priyonggo Sumangun Lukitadi; Priyo Agus Setiawan; Fariz Andika Firmansyah
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 4 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i4.5101

Abstract

The performance of Savonius wind turbine was improved in the previous experimental studies that added overlap and variation of disruptive cylinder distances in front of returning blade. However, the study could not display flow visualization such as velocity contours, streamlined velocity, and pressure contours on turbines so further research is needed. This research is in the form of numerical study using 3-dimensional Computational Fluid Dynamics (CFD) method. The simulation is, determine visualize the turbine’s flow like a velocity contours, streamlined velocity, and pressure contours. The turbine has the same diameter and height of 0.4 meters with overlap addition. The various distances of the disruptive cylinder used is S/d = 1.4; S/d = 1.7 ; S/d = 2 and S/d = 2.3. The final result shows that the visualization at a distance of S/d = 1.7 is the most optimal wake distance to cover the overall returning blade side so that the performance of the Savonius wind turbine at that distance is highest compared to other variations.
An Experimental Study of Stagger Angle Effect Placed in front of Returning Side toward the Savonius Wind Performance Using Overlap Myring Blade for n = 1 Priyo Agus Setiawan; Projek P. S. Lukitadi; Emie Santoso; Nopem Ariwiyono; Aminatus Sa’diyah; Daisy D. K. R. Antariksih; Galih Anindita; Budi Prasojo; George E. Kusuma; Rini Indarti; Mardi Santoso; Bambang Antoko; Endang P. Purwanti; Mohammad M. Munir
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6402

Abstract

The previous Savonius wind turbine studies have proved that overlap modifications to conventional blades can improve turbine performance. With these conventional blades, the performance is less optimum because the drag force generated by turbine's rotation is still high. Based on this condition, this experiment is conducted by modifying Savonius wind turbine with overlap blades using Myring equation n = 1. Its blade profile is made half-elliptical to reduce drag force. Diameter and height of the turbine are 400 mm with 0.3 overlap ratio. The ratio of cylinder diameter (ds/D) is 0.4, and the ratio of cylinder center distance (S/d) is 1.7. Experiments are conducted by varying stagger angles of circular cylinder in front of returning blade are 45°, 50°, 55°, and 60° with velocity 5 m/s. The final results show that the best performance improvement of the turbine occurs at 60° stagger angle. The increase in torque coefficient is 4.95% and power coefficient is 20.16% to overlap Savonius wind turbine with myring n = 1 with no circular cylinder.
Co-Authors Adi Wirawan Husodo Aditya Yuta Prawiratama Aisyah Diva Alfin Ardianto Alfin Ardianto Am Maisarah Disrinama Aminatus Sa’diyah Ammaisarah Disrinama Anindita, Galih Antariksih, Daisy D. K. R. Antariksih, Daisy D. K. R. Antoko, Bambang Antoko, Bambang Arie Indartono Ariwiyono, Nopem Ariwiyono, Nopem Arizona Pradhika Raqih Ayomi Nur Laili Bambang Antoko Billy Yanuar Saputro Budi Prasojo Burniadi Moballa Daisy D. K. R. Antariksih Daisy Dwijati K.R.A Daisy Dwijati Kumala Daisy KRA Defi Ramdani Wira Buana Deni Purnanto Difa Falahudin E. Kusuma, George Eky Novianarenti Eky Novianarenti Endang P. Purwanti Fariz Andika Firmansyah Fariz Andika Firmansyah Firdaus Styo Fathoni Galih Anindita George E. Kusuma Heroe Poernomo Imah Luluk Indarti, Rini Invinandri Joko Kusuma, George Endri Lukitadi, Projek P. S. Lukitadi, Projek P. S. Lukitadi, Projek Priyonggo Sumangun Luqman Arif Nurudin M. Hilmy Syahfata M. Munir, Mohammad Mardi Santoso Maulana Jalalluddin Safii May T Mubarokah Mey Rohma Mohamad Hakam Mohammad M. Munir Mokhamad Prayitno Mulya, Mirza Z. I. Naffatsa Alza Wiyoga Nopem Ariwiyono Nopem Ariwiyono, Bachtiar Nur Budiyanto Ekky Pranowo Sidi Prasojo, Budi Projek P. S. Lukitadi Projek Priyonggo Sumangun Lukitadi Puruhitno Pambudi Rohimawan Purwanti, Endang P. Rachmat, Aulia Nadia Ramadani, Tarikh A. Rini Indarti Ryandika Aditya Pramanta Santoso, Emie Santoso, Emie Santoso, Mardi Sa’diyah, Aminatus Soim, Subagio Suantara Darma Gede Subagio Soim Subagio Soim Sudiyono Sudiyono Syahdan Firza Hendarto Tri Andi Setiawan Tri Dayanti Widya Febrian Prasetia Yuanditma Pranaja Kastara M