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All Journal Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS Jurnal Energi dan Teknologi Manufaktur Jurnal Pengabdian Polinema Kepada Masyarakat Panrannuangku Jurnal Pengabdian Masyarakat Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Teknik Mesin, Industri, Elektro dan Informatika Asian Journal Science and Engineering Jurnal Teknik Ilmu dan Aplikasi Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer
Khambali Khambali
Jurusan Teknik Mesin, Politeknik Negeri Malang
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Pengaruh Penghalang Pada Intake Manifold Terhadap Emisi Gas Buang Motor Injeksi 125cc Gabrie Umar Bakti Mulana; Khambali Khambali; Yuniarto Agus Winoko
Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 2 No. 4 (2024): Agustus: Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v2i4.253

Abstract

This study aims to analyze the effect of barriers on standard intake manifolds on exhaust emissions in 125cc capacity injection motors. The applied barrier is expected to modify the intake air flow, which has an impact on the combustion process and the resulting exhaust emissions. The method used includes testing exhaust emissions with variations in the use of barriers under several engine conditions, including different engine speeds. The results show that the use of barriers can affect CO, HC, and O2 emission levels, with certain variations indicating changes in combustion efficiency. The conclusion of this research is that the selection of the right barrier diameter and intake manifold shape can contribute to the reduction of exhaust emissions of 125 cc injection motorcycles. The results of this study are expected to be a reference for the automotive industry in designing a more environmentally friendly intake manifold system.
EFFECT OF STATIC THERMAL TENSIONING AND PREHEATING ON ANGULAR DISTORTION IN FCAW WELDED SS400 STEEL CORNER JOINTS Sugeng Hadi Susilo; eko yudiyanto; Agus Setiawan; Khambali Khambali; Suryanto; Falih Alauddin
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 24 No. 2 (2024): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v24i2.39-48

Abstract

FCAW welding is an automated welding process that employs a wire roll electrode to melt metal, using flux or powder within the electrode's core for protection. A common issue with FCAW welding is the occurrence of angular distortion and alterations in the length and width dimensions, particularly in thin plate iron materials, due to residual stresses from the welding process. This research aims to assess the impact of static thermal tensioning, preheating, and their combination on angular distortion in SS400 steel corner joints during FCAW welding, considering heat input during welding. True experimental research methodology was employed, with variations in preheating temperatures of 200°C, 250°C, 300°C, static thermal tensioning at 150°C, 200°C, 250°C, transient thermal tensioning at 150°C, 200°C, 250°C, and a reference method with no treatment to determine the welding approach that minimizes angular distortion. The material used was 3mm thick SS400 steel. Data analysis was performed using Minitab 18 software and the One-Way Anova method. The research results indicate a significant influence of static thermal tensioning, preheating, and their combination on angular distortion. The optimal welding methods identified are preheating-static thermal tensioning at 89°55', preheating-transient thermal tensioning at 89°50', static thermal tensioning at 150°C at 89°45', transient thermal tensioning at 150°C at 89°40', and preheating at 200°C at 89°35'.
Pengaruh Modifikasi Permukaan Piston terhadap Emisi Gas Buang Motor Bakar Kapasitas 100 cc Gennarki Dini Setyawan Putra; Khambali Khambali
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 3 No. 3 (2024): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v3i3.4108

Abstract

Technological advances in motorized transportation are progressing rapidly, making motorized vehicles the main mode of transportation. The increasing number of motorized vehicles in society results in a significant increase in exhaust emissions. Combustion in vehicle engines is not always perfect, producing exhaust gases containing compounds harmful to human health, such as carbon monoxide (CO), hydrocarbons (HC), carbon dioxide (CO2), and nitrogen oxides (NOx). This study investigates the effect of variations in piston dome shape on exhaust emissions in a 100cc internal combustion engine using RON 90 fuel. The goal is to find the optimal compression ratio to produce cleaner exhaust emissions. The research data are presented in tabular form and analyzed using one-way ANOVA and graphs. The results showed a significant reduction in CO and HC emissions at all engine speeds (1000, 2000, 4000, and 5000 rpm) with variations in piston dome shape. The reduction in CO emissions ranged from 55.07% to 85.73%, while the reduction in HC emissions ranged from 54.14% to 86.10%. These results suggest that variations in piston dome shape can be an effective solution to minimize harmful exhaust emissions in internal combustion engines.
Co-Authors Agus Harijono Agus Setiawan AM Mufarrih Amrullah, Utsman Syah Bambang Hertomo Bambang Sulistyono Chandra Wiharya Eko Yudiyanto Falih Alauddin Fatkhur Rohman Gabrie Umar Bakti Mulana Gennarki Dini Setyawan Putra Harijono, Agus Hariyanto, Moh. Nasir Kasijanto - Listiyono Listiyono Listiyono Listiyono listiyono listiyono Maskuri Maskuri Moh. Nasir Hariyanto Moh. Rifa’i Muhamad Rifa’i Nurhadi - Nurhadi - Nurhadi Nurhadi . Nurhadi Nurhadi R N Akhsanu Takwim Santoso Santoso Sudarmadji Sugeng Hadi Susilo Sugeng Hadi Susilo Suryanto Vinan Viyus Yuniarto Agus Winoko