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All Journal Prosiding SNATIF R.E.M (Rekyasa Energi Manufaktur) Jurnal Turbo : Jurnal Program Studi Teknik Mesin ARMATUR : Artikel Teknik Mesin dan Manufaktur
Surono, Bambang
Universitas Muhammadiyah Metro
Aerospace Engineering Automotive Engineering Education Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pengujian Eksperimental Keausan Bahan Alumunium, Tembaga dan Baja Karbon Menggunakan Uji Keausan Skala Laboratorium Type Pin On Disc Aswar Aswar; Simon Parekke; Harjuma Harjuma; Bambang Surono; Sulis Dri Handono
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4677

Abstract

Keausan menentukan kinerja dan umur pakai komponen mekanik. Studi ini mengevaluasi ketahanan aus aluminium, tembaga, mild steel, alloy steel, dan stainless steel menggunakan tribometer Pin-on-Disc skala laboratorium pada gesekan kering. Spesimen silinder (Ø10mm×30 mm) diuji pada kecepatan 290 rpm, lintasan 150 m, dengan dua variasi beban yaitu 3,5 N dan 4,0 N. Laju keausan spesifik dihitung dari perubahan massa dan beban, disertai observasi makroskopik pola keausan. Hasil menunjukkan perbedaan nyata antar material: stainless steel terbaik dengan laju keausan terendah 1,1×10⁻5 cm³/N·m dan pola abrasi ringan. Mild steel dan alloy steel menunjukkan stabilitas terhadap peningkatan beban dengan respon keausan rendah, masing-masing 3,9% dan 5,0%. Aluminium memiliki laju keausan tertinggi dan respons hingga 19,9%, dengan indikasi delaminasi serta akumulasi serpih aus. Korelasi antara data kuantitatif dan morfologi permukaan menegaskan bahwa kombinasi kekerasan tinggi, keuletan memadai, dan stabilitas lapisan oksida merupakan penentu utama ketahanan aus.
PENGARUH WAKTU PEMANASAN DAN MEDIA KOROSI TERHADAP LAJU KOROSI BAJA ASTM A36 SEBAGAI BAHAN CHAMBER INCENERATOR Eko Nugroho; Nurlaila Rajabiah; Bambang Surono; Wahyu Seto Aji
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4734

Abstract

An incinerator is a machine designed to process solid waste through high-temperature combustion technology. Continuous combustion may lead to corrosion, which is often considered an inevitable problem. The purpose of this study is to investigate how combustion duration and corrosive media affect the corrosion rate. The research method employed was an experimental design involving the heating of material. Tests were conducted to analyze the effect of combustion time and corrosive media in the incinerator chamber on the corrosion rate. The material used was ASTM A36 steel with dimensions of 70 mm × 50 mm × 5 mm. The corrosive media employed were rainwater, H₂SO₄, and HCl. The material was heated at 700 °C for 3, 5, and 7 hours. The immersion time in corrosive media was 30 minutes, followed by a cooling period of 7 days. The results indicated that the highest corrosion rate occurred at a combustion time of 7 hours. Thus, the longer the combustion time, the greater the reaction, resulting in an increased corrosion rate. The use of different corrosive media also influenced the corrosion rate. It was found that the highest corrosion rate was 0.00534 mm/year after 7 hours of heating in HCl solution, while the lowest corrosion rate was approximately 0.00077 mm/year in rainwater after 3 hours of heating. Therefore, prolonged heating not only enhances the reaction but also significantly increases the corrosion rate.
Pengaruh Variasi Jarak Nosel dan Kecepatan Udara Inlet terhadap Tekanan dan Kecepatan Hisap pada Pompa Vakum Jet Ejector Arasy Fahruddin; Lukman Hudi; Bambang Surono; Mulyadi Mulyadi
TURBO [Tulisan Riset Berbasis Online] Vol 15 No 1 (2026): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v15i1.5104

Abstract

This study aims to analyze the effect of variations in nozzle spacing and inlet air velocity on the vacuum pressure and flow velocity distribution in a jet ejector vacuum pump. The method used is a numerical simulation based on Computational Fluid Dynamics (CFD) to obtain a detailed picture of the fluid flow characteristics in the system. The variations in nozzle spacing studied include 14 mm, 16 mm, and 18 mm, while the inlet air velocity is varied at 10 m/s, 15 m/s, and 20 m/s. The simulation results show that increasing the nozzle spacing tends to reduce the pressure on the venturi, thereby increasing the vacuum effect, with optimal conditions obtained at a distance of 18 mm and an inlet velocity of 10 m/s. Under these conditions, the pressure in the tube reaches the lowest value compared to other variations. However, increasing the inlet air velocity actually causes an increase in pressure in the tube due to turbulence and backflow, thereby reducing or even eliminating the vacuum effect at velocities of 15 m/s and 20 m/s. Overall, the performance of a jet ejector is greatly influenced by a combination of geometric and operational parameters.
Co-Authors A'rasy Fahruddin Adi Cahyono Agus Kuswanto Aji, Wahyu Seto Akhmad Syarief Akhmad Syarief Anang Ansyori Andra, Daffi Arifin, Zulkarnain arrohman, sigit Asroni Asroni Asroni Asroni, Asroni Aswar Aswar Aswar Aswar Daffi Andra Dwilma Shopie Eko Nugroho Eko Nugroho Fathirahman, Muhammad FERI FITRIYANTO Fikri, Muhammad Luqman Saiful Hanafi, Imam Mahfud Handono, Sulis Dri Harjuma Harjuma Harjuma, Harjuma Hendri Yonatan I Ketut Setiawan I Made Miasa Ichsan Ristiawan Imam Mahfud Hanafi Ivoda, Havinza Namza Juni Ismanto Kemas Ridhuan Legisnal Hakim Legisnal Hakim Lukito Dwi Yuono, Lukito Dwi Lukman Hudi Mafruddin Mafruddin Mafruddin Mafruddin, Mafruddin Mascuk Susilo Muhammad Fajri Muhammad Fathirahman Muhammad Luqman Saiful Fikri Mulyadi Mulyadi Nurlaila Rajabiah Parekke, Simon Praharsa, Rinaldi Rafli, Endhita Fourten Riki Purnomo Ristiawan, Ichsan Santoso, Sakti Septiandi, Ari Shopie, Dwilma Sigit Arrohman Simon Parekke Simon Parekke Sriwijaya, Rachmad Sriwijaya, Rachmad Sudirman Sudirman Sulis Dri Handono Sunaryo Sunaryo Susilo, Mascuk Syaukaty Yasinta Syaukaty Yasinta Tri Cahyo Wahyudi Wahyu Seto Aji Wahyudi, Tri Cahyo Yuwono Yuwono Zulkarnain Arifin