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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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Studi Numerik Pengaruh Variasi Rasio Diameter Silinder Pengganggu di Depan Returning Blade Terhadap Coefficient of Power (CP) Turbin Angin Savonius Penambahan Fin Ryandika Aditya Pramanta; Priyo Agus Setiawan; Nopem Ariwiyono
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2685

Abstract

Experimental research on savonius wind turbine with additional fins and variouscircular cylinders have been carried out as an effort to improve the turbine performance.Further research is needed to validate experimental studies.Based on the problems above,numerical studies using 3-dimensional Computational Fluid Dynamics (CFD) method isneeded to determine coefficient of torque values. The turbine has the same diameter and heightof 0.4 meters with additional fins. The various diameter of circular cylinder used are ds/D =0.1; ds/D = 0.2; ds/D = 0.3; and ds/D = 0.4. Then the cylinder is placed at a distance of X =34 cm and Y = 10 cm. The final result is the turbine can reach the highest increase of 5.4% inits performance with ds/D = 0.4 with 0.389 coefficient of power (Cp).
Studi Numerik Pengaruh Jarak Silinder Pengganggu terhadap Returning Blade pada Performa Turbin Angin Savonius Fin Mokhamad Prayitno; Priyo Agus Setiawan; Nopem Ariwiyono
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2687

Abstract

The performance of Savonius wind turbine has increased in the previous experimentalstudies with 1 additional fin and various disturbing cylinder distance in front of returning blade.Although the performance has increased, validation is needed through experiments . Therefore, furtherresearch is needed. The research uses Computational Fluid Dynamic (CFD) with 3-dimensional modelto obtain an increase on the turbine performance. In this simulation the solver chosen is pressure based with transient time mode. In the Savonius wind turbine simulation, the model used is the realizable k-epsilon model. Numerical method can validate experimental study. The turbine uses 1 additional fin with 40 cm in diameter and height. The variation of disturbing cylinder distance is S/d = 1.4 ; S/d =1.7; s/d = 2.0; s/d = 2.3 with wind speed of 5 m/s. Simulations are also carried out to determine thevalue of Coefficient of Power (Cp). The final result is there is 5,40% increase on the turbineperformance at the distance S/d = 1,7 , 5 m/s speed, and 1,0 TSR. The Coefficient of Power (Cp)simulation value is 0,389.
Studi Numerik Pengaruh Variasi Rasio Diameter Silinder Sirkular Terhadap Performa Turbin Angin Savonius Overlap Yuanditma Pranaja Kastara M; Emie Santoso; Priyo Agus Setiawan
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2689

Abstract

- Experimental research on the performance of savonius wind turbine has been carried outwith additional overlap ratios and various diameter ratio of circular cylinder in front of returningblade. The validation of experimental results can be displayed by making numerical study researchwith Computational Fluid Dynamics (CFD) method. This method can also be used to obtaincoefficient of power. Numerical studies were conducted using savonius wind turbines with 0,3 overlapratio and also 0,4 meter of diameter and height. The various of circular cylinder diameter is ds/D =0,3; 0,4; 0,5; and 0,6. The wind speed is set at 5 m/s. The highest increase of performance savoniusoverlap wind turbines is 3,51% in the variations of ds/D = 0,4 to savonius overlap wind turbineswithout circular cylinder with 0,324 coefficient of power (Cp) at Tip Speed Ratio 1.
Desain dan Analisa Aerodinamis Bodi Mobil Minimalis Roda Tiga Terhadap Tingkat Kestabilan Kendaraan Ditinjau dari Kondisi Skid dan Rolling Defi Ramdani Wira Buana; Priyo Agus Setiawan; Tri Andi Setiawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 1 No 1 (2017): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Transportasi pada saaat ini memiliki peran yang penting terhadap mobilitas manusia. Berbagaiinovasi telah dikembangkan untuk berbagai model transportasi sebagai solusi dalam memenuhikebutuhan mobilitas manusia tersebut. Dalam perkembanganya salah satu transportasi yang palingdiminati adalah mobil. Mobil adalah kendaraan darat yang digerakkan oleh tenaga mesin, beroda3 atau lebih, biasanya menggunakan bahan bakar minyak ataupun bahan bakar listrik yang ramahlingkungan untuk menghidupkan mesinnya. Seiring berjalannya waktu, perkembangan inovasi padamobil sangat bervariasi dengan mengedepankan konsep minimalis dan futuristik serta teknologimutakhir. Sehingga dibutuhkan suatu inovasi terhadap mobil yang sudah ada baik dalam segi bahanbakar, sistem kerja, maupun desainDalam penelitian kali ini akan dibuat sebuah desain bodi mobilminimalis roda 3 yang akan diuji tingkat aerodinamisnya serta tingkat kestabilan kendaraan saatberbelok ditinjau dari kondisi skid dan rolling. Sehingga didapat kecepatan aman saat berbelok.Hasil dari penelitian ini diperoleh model desain bodi mobil dengan roof yang memiliki sudut buangaerodinamis sebesar 100 dengan nilai Cd = 0,28 ; Cl = -0,03 dan Cm = 0,03. Dimensi dari bodimobil ini adalah panjang 3 meter, lebar 1,4 meter dan tinggi 1,5 meter dengan beban maksimalmuatan 250 kg. Dengan melihat pengaruh aerodinamis terhadap tingkat kestabilan kendaraanditinjau dari kondisi skid dan rolling diperoleh kecepatan aman berbelok tanpa kemiringan sebesar28 km/jam. Namun ketika mobil berbelok dengan kemiringan 60 maka diperoleh kecepatan amannyasebesar 34 km/jam. Hal ini membuktikan bahwa kondisi mobil yang bergerak miring ketika berbelokakan memperkecil gaya sentrifugal yang terjadi sehingga mobil dapat berbelok dengan kecepatanyang lebih tinggi.
PERANCANGAN DAN ANALISIS STRUKTUR BAJA PENYANGGA TANGKI AIR YANG DITINGGIKAN KAPASITAS 100 M³ PRODUK PT. PELANGI INDOKARYA M. Hilmy Syahfata; Mohamad Hakam; Priyo Agus Setiawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 7 No 1 (2023): Conference On Design And Manufacture Its Application
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

Industries engaged in manufacturing require a water supply. The required clean water capacity of 100 m³ is used to meet industrial needs, with the fulfillment of this amount having a positive impact on the smooth production process and related aspects for daily needs. The water tank is a water storage container with the aim of fulfilling the water supply at a certain height to provide pressure and facilitate the water distribution system. This research designs a steel structure supporting a water tank to support these needs. The tank tower structure is designed by considering several loads that will be received. The design method used is the Ulrich method, which involves creating three design concepts from which one of the best designs will be selected according to the selection criteria. The design of the steel structure supporting the water tank is carried out through strength analysis with Ansys Mechanical APDL software to determine the amount of stress obtained from the combination of loading received. This research results the steel structure supporting the water tank in the selected design concept shows a maximum stress value of 6.5 kg/mm2. The value obtained is still below the maximum allowable stress value of 16.67 kg/mm2. The total budget for steel structural materials in the form of profiles and plates is Rp 1,197,129,128.00.
Analisis Kinerja Mesin Roll Stand Menggunakan Metode Overall Equipment Effectiveness Pada Perusahaan Manufaktur Baja Ayomi Nur Laili; Rachmat, Aulia Nadia; Priyo Agus Setiawan
Journal of Safety, Health, and Environmental Engineering Vol. 3 No. 1 (2025): Journal of Safety, Health, and Environmental Engineering
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/jshee.v3i1.46

Abstract

Industri manufaktur baja merupakan salah satu sektor yang memiliki peran krusial dalam perekonomian global. Mesin roll stand menjadi komponen utama dalam proses produksi baja, di mana efisiensi dan produktivitasnya sangat menentukan daya saing perusahaan. Pengoperasian mesin yang berkepanjangan tanpa istirahat dapat menyebabkan kelelahan mesin, sehingga dapat meningkatkan kemungkinan kerusakan mesin. Oleh karena itu, agar stabilitas produksi dan kualitas produk yang diinginkan dapat tercapai, maka perusahaan perlu mengoptimalkan pelaksanaan kegiatan pemeliharaan untuk meminimalisir hal tersebut. Penelitian ini bertujuan untuk menganalisis kinerja mesin roll stand dengan menggunakan metode Overall Equipment Effectiveness (OEE) dan mengidentifikasi six big losses yang memengaruhi efektivitas kerja mesin di salah satu perusahaan manufaktur baja di Jawa Timur. Metode OEE digunakan untuk mengukur efektivitas mesin roll stand secara komprehensif dengan menghitung tiga variabel utama yakni availability, performance, dan quality. Selanjutnya, six big losses dianalisis untuk mengetahui efektivitas speed losses, nilai OEE dan meminimalisir terjadinya kegagalan mesin. Six big losses meliputi downtime, speed losses dan quality losses. Hasil perhitungan nilai OEE yang telah dilakukan menunjukkan bahwa rata-rata nilai OEE pada empat tahun terakhir adalah sebesar 58,71%, dengan nilai availability sebesar 99,53%, performance rate sebesar 59,12% dan quality rate sebesar 99,85%. Dikarenakan nilai OEE cukup rendah maka perlu dilakukan analisis lebih lanjut menggunakan analisis six big losses untuk mengetahui losses yang paling dominan yakni reduced speed losses dengan nilai sebesar 162,86% atau sebesar 14.238,70 jam, dan losses tertinggi berada pada tahun 2023 sebesar 55,28% atau sebesar 4.882,24 jam, sedangkan losses terendah pada tahun 2021 yakni sebesar 25,23% atau sebesar 2.202,59 jam.
Performance Investigation of the Savonius Wind Turbine by Putting a Rotating Cylinder in the front of Advancing by Varying the Diameter and Stagger Angle Setiawan, Priyo Agus; Soim, Subagio; Antoko, Bambang; Lukitadi, Projek P. S.; Santoso, Emie; Ariwiyono, Nopem; Antariksih, Daisy D. K. R.; Disrinama, Ammaisarah
International Journal of Marine Engineering Innovation and Research Vol 9, No 3 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i3.21136

Abstract

The wind energy is the one of the renewable energy to produce the power using turbine. The Savonius turbine have lower performance compared to the other. In this work, the method used is the experimental stu using the wind tunnel to flow air go to the Savonius turbine. The model used is a conventional Savonius wind turbine by adding cylinder installed in front of advancing area with a diameter of 0.4 m and a height of 0.4 m and ds/d of 0.1, 0.2, 0.3, and 0.4 with the rotation of 20 rpm at a stagger angle of 0°, 30°, 60°, and 90°. The experiment is kept constant at the velocity of 7 m/s. This work objective will determine the torque and power coefficient by varying the diameter and stagger angle. The results show that the biggest performance decreased was about 40% in the variation of ds/d of 0.3 with a stagger angle of 0°. The best results show that the wind turbine performance occurred the highest improvement in about 12% at the variation of ds/d = 0.4 with a stagger angle of 60°. 
Stress Analysis on Emergency Pipeline from Flare to Pressure Vessel Lukitadi, Projek Priyonggo Sumangun; Setiawan, Priyo A.; Ramadani, Tarikh A.; Mulya, Mirza Z. I.
International Journal of Marine Engineering Innovation and Research Vol 10, No 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.22595

Abstract

This work focuses on the analysis of emergency piping systems connected to flares and pressure vessels at oil and gas facilities in West Papua. The main objective is to determine support placement, and analyze pipe stress on flares and pressure vessels. The methods used include calculating the maximum allowable pipe span, stress analysis based on ASME B31.3. The results of the research show that a 6 in emergency pipe line requires a minimum of 2 supports with a maximum allowable pipe span of 36.967 ft. The pipe flexibility value of 0.00146 is still below the limit of 0.02582 set by ASME B31.3. Stress analysis due to sustained, occasional, and thermal expansion loading shows the highest values respectively of 2572.5 lb/in² (12.6% of the permit limit), 1294.0 lb/in² (18.9% of the permit limit for seismic loads), 595.0 lb/in² (2.2% of the permit limit for wind loads), and 23921.3 lb/in² (49.3% of the permit limit).
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 Setiawan, Priyo Agus; Lukitadi, Projek P. S.; Santoso, Emie; Ariwiyono, Nopem; Sa’diyah, Aminatus; Antariksih, Daisy D. K. R.; Anindita, Galih; Prasojo, Budi; E. Kusuma, George; Indarti, Rini; Santoso, Mardi; Antoko, Bambang; Purwanti, Endang P.; M. Munir, Mohammad
International Journal of Marine Engineering Innovation and Research Vol 10, No 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.22856

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 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 Billy Yanuar Saputro Burniadi Moballa 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 Fariz Andika Firmansyah Fariz Andika Firmansyah Firdaus Styo Fathoni 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 Maulana Jalalluddin Safii May T Mubarokah Mey Rohma Mohamad Hakam Mokhamad Prayitno Mulya, Mirza Z. I. Naffatsa Alza Wiyoga Nopem Ariwiyono Nopem Ariwiyono, Bachtiar Nur Budiyanto Ekky Pranowo Sidi Prasojo, Budi Projek Priyonggo Sumangun Lukitadi Puruhitno Pambudi Rohimawan Purwanti, Endang P. Rachmat, Aulia Nadia Ramadani, Tarikh A. 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