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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta Journal of Mechanical Engineering Science and Technology Briliant: Jurnal Riset dan Konseptual Turbulen : Jurnal Teknik Mesin JOURNAL OF SCIENCE AND APPLIED ENGINEERING Jurnal Elemen Jurnal Energi dan Teknologi Manufaktur Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Pengabdian dan Pemberdayaan Nusantara (JPPNu) Bulletin of Community Engagement Logic : Jurnal Rancang Bangun Dan Teknologi Asian Journal Science and Engineering Jurnal Teknik Ilmu dan Aplikasi Journal of Mechanical Engineering Jurnal Polimesin Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Venus: Jurnal Publikasi Rumpun Ilmu Teknik Evrimata: Journal of Mechanical Engineering
Eko Yudiyanto
Politeknik Negeri Malang
Religion Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Journal : Asian Journal Science and Engineering

 1 
The Effect of Fuel Pump Pressure and Number of Injector Holes on 150cc Matic Motorcycle Performance Santoso, Santoso; Yulianto, Fian Arif; Yudiyanto, Eko; Aditya, Candra; Sabarudin, Suriansyah
Asian Journal Science and Engineering Vol. 2 No. 2 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i2.1020

Abstract

This study aims to evaluate the effects of increasing fuel pump pressure and varying the number of holes in the injector on engine performance. The fuel system in the engine has evolved from carburettor to injection system to improve the efficiency of fuel usage. In this study, the fuel pump pressure was increased to three levels, namely 2.5 bar, 3 bar, and 3.5 bar. In addition, variations in the number of holes in the injector were also tested using 3-hole, 6-hole, and 8-hole injectors. Engine performance was evaluated based on the power and torque produced. The research method used is experimental with power and torque measurements as engine performance data. The results showed that increasing fuel pump pressure and varying the number of holes in the injector had a significant effect on engine performance. Increasing the fuel pump pressure to 3.5 bar results in an increase in engine power and torque. The best power test results were obtained at a fuel pump pressure of 3 bar with a combination of 6-hole injectors, producing a maximum power of 11.63 HP at 6000 rpm engine speed. While the best torque test results were obtained at a fuel pump pressure of 3.5 bar with a combination of 3-hole injectors, producing a maximum torque of 43.10 Nm at 3000 rpm. The variation in the number of holes in the injector shows that the use of injectors with more holes tends to increase engine power and torque. Keywords: Engine Performance, Fuel Pump Pressure, Fuel Efficiency Injector Holes, Injection System
Surface Analysis and Material Elements in the Excavator Tooth Bucket which is affected by corrosion with the SEM and EDX method yudiyanto, eko; Susilo, Sugeng; Sulistyono, Sulistyono
Asian Journal Science and Engineering Vol. 3 No. 1 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i1.1761

Abstract

Corrosion in excavator tooth buckets is a major issue in the heavy equipment industry, especially in mining and construction. Exposure to water, humidity, and chemicals accelerates corrosion, reducing strength and wear resistance, which shortens component life and lowers operational efficiency. This study analyzes surface structure and material composition changes due to corrosion, aiming to enhance material durability through better selection and design. Using Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray Spectroscopy (EDX), corrosion effects on S45C steel were examined at up to 5000x magnification. The results show increased oxygen (O) from 3.56 WT% to 25.53 WT% and decreased iron (Fe) from 84.21 WT% to 59.35 WT%, indicating severe oxidation. Identified corrosion types include uniform and gap corrosion, highlighting the need for corrosion-resistant materials and protective coatings to improve excavator reliability
Co-Authors Agus Hardjito Agus Setiawan Agus Sujatmiko Akhlis Rizza, Muhammad Alauddin, Falih Amrullah, Utsman Syah Asrori Asrori Asrori Asrori BAYU PRANOTO Cahyono, Aldio Dita Candra Aditya Deny Arisandi Dwi Saputra, Luqman Elka Faizal Etik Puspitasari Gumelar, Briyan Adit gumono Gunawan, Chandra Habibi, Krisna Haris Puspito Buwono Khambali, Khambali Kris Witono Lisa Agustriyana Listiyono Mochammad Muzaki Mohammad Noor Hidayat Mohd Azlan Suhaimi Muhammad Afif Bahrain Muhammad Ammar Muhammad Fakhruddin Nila Alia Nugroho, Pipit Wahyu Pondi Udianto Purwoto, Eko Radhi Nurvian Amrullah Rahmad, Cahya Raihan Insan Nararya Ridho Surya Setiabudi Rifa’i, Muhamad Safian Sharif SANTOSO SANTOSO Saputra, Luqman Dwi Sarjiyana Sarjiyana Satworo Adiwidodo Sugeng Hadi Susilo Sugeng Susilo, Sugeng Sulistyono Sulistyono Sulistyono Sulistyono Suriansyah Sabarudin Suryanto Susilo, Sugeng Hadi Syamsul Hadi Syamsul Ph.D M.A. Hadi Thomas Adikusuma Walid, Achmad Yulianto, Fian Arif