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All Journal Infotekmesin Multidisciplinary Innovations and Research in Applied Engineering
Agus Lutanto
Akademi Inovasi Indonesia
Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Advancements in Automotive Braking Technology for Enhanced Safety: A Review Agus Lutanto; Aprianur Fajri; Kacuk Cikal Nugroho; Fajrul Falah
Multidisciplinary Innovations and Research in Applied Engineering Vol. 1 No. 1 (2024)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/6n21wx31

Abstract

This research explores advancements in braking technology with a focus on enhancing vehicle safety. The topic was chosen due to the critical importance of literature connecting braking technology developments to safety levels. The method employed was a comprehensive review of current literature concerning types and advancements in braking technologies, particularly in automotive vehicles. Analysis indicates that integrating modern braking technologies can significantly enhance driving safety and comfort, although challenges related to costs and maintenance need further attention. Further studies are recommended to optimize the future implementation of these technologies.
Performance and Emission Analysis of Motorcycles Using Pertalite-Methanol Fuel Blends Agus Lutanto; M. Burhan Rubai Wijaya; Hadromi
Multidisciplinary Innovations and Research in Applied Engineering Vol. 1 No. 2 (2024)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/vv71xa86

Abstract

The increasing use of motorcycles necessitates the development of more efficient and environmentally friendly fuel alternatives. This study examines the effect of mixing methanol with pertalite fuel on engine performance and exhaust emissions in carburetor motorcycles. The fuel variations tested include M0, M5, M10, M15, M20, and M25. Performance testing was conducted using a dynotest, while exhaust emissions were measured with an emission gas analyzer. The results indicate that M25 produces the highest torque and power output, particularly in the 2500–8500 rpm range. Additionally, M25 significantly reduces HC and CO emissions, with HC at 108.33 ppm vol and CO at 0.19% vol, compared to M0. The findings suggest that methanol-enhanced fuel improves combustion efficiency, enhances engine performance, and lowers emissions. Thus, methanol-pertalite blends offer a promising alternative for improving carburetor motorcycle performance while reducing environmental impact.
Effect of Flow Rate Variation on Solar Water Heater Performance Baharudin Priwintoko; Agus Lutanto; Yusuf Subagyo; Saeful Romadhon; Agus Prasetyo
Multidisciplinary Innovations and Research in Applied Engineering Vol. 2 No. 2 (2025)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/nrhaqe41

Abstract

Solar energy potential in Indonesia is very large, yet its utilization for daily thermal needs still requires improvement through simple, economical, and efficient collector designs. This study analyzes the effect of fluid flow-rate variation on the performance of a trickle-type solar water heater with a V-shaped collector under local outdoor testing conditions. The novelty of the work lies in the combined evaluation of a V-shaped zinc-sheet absorber, trickle-type flow arrangement, north-facing 30° collector orientation, and practical flow-rate range of 2, 4, 6, and 8 L/min. The outdoor experiment was conducted from 09:00 to 12:00 Western Indonesia Time with repeated field observations for each flow-rate condition. Inlet temperature, outlet temperature, ambient temperature, collector temperature, cover temperature, wind speed, and solar radiation intensity were recorded and processed to determine useful heat gain, heat absorbed by the fluid, collector efficiency, fluid heat-absorption efficiency, and total efficiency. The results show that a lower flow rate produces a greater increase in fluid temperature, but it does not always produce the highest total efficiency. The 4 L/min flow rate provided the best performance, with a total efficiency of 55%, fluid heat-absorption efficiency of 71%, average fluid heat-transfer rate of 559.53 W, and estimated test-period fluid energy of 1678.59 Wh (6.04 MJ) during the 3 h test period. These findings indicate an optimum balance between fluid residence time and mass flow rate in improving solar water heater performance.
Prediksi dan Validasi Porositas Kipas Aluminium Hasil Pengecoran Dengan Simulasi dan Eksperimen Berbasis Finite Difference Method Dedhy Prihtiantoro; Agus Lutanto
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2806

Abstract

Porosity is a common defect in the aluminum casting process, particularly in thin-walled components such as compressor fans. This study aims to predict and validate porosity in cast aluminum fan components using a combined simulation and experimental approach. The simulation was conducted using the Finite Difference Method (FDM) with the aid of SOLIDCast and FLOWCast software to evaluate molten metal distribution, Niyama criterion, and solidification time. The experimental casting was carried out using silica sand molds and Aluminum A319 alloy, followed by metallographic analysis under an optical microscope. The results show a strong correlation between the simulation predictions and experimental findings, especially in the identification of microporosity, gas porosity, and localized shrinkage. This approach has proven effective in improving casting quality and can serve as a reference for optimizing gating system design.
Optimization of Endmill Tool Life in Aluminum 6061 Milling Using Design of Experiments (DoE) and DMAIC Lean Six Sigma Dedhy Prihtiantoro; Agus Lutanto; Baharudin Priwintoko
Infotekmesin Vol 17 No 2 (2026): Infotekmesin: Juli 2026
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/

Abstract

Premature endmill failure in aluminum 6061 milling increases production costs, machine downtime, and surface quality variation. Previous studies have generally been conducted under laboratory conditions; therefore, they do not fully represent parameter variations, machine conditions, operator involvement, and monitoring limitations in industrial shop-floor environments. This study aims to identify the dominant factors affecting endmill breakage and to determine the optimum cutting parameters. The research method integrates DMAIC Lean Six Sigma, Design of Experiments (DoE), FMEA, ANOVA, and cutting force analysis. The results show that feed per tooth and depth of cut are the dominant factors affecting endmill breakage frequency. The optimum combination was obtained at the low cutting-speed level, feed per tooth of 0.10 mm/tooth, and depth of cut of 2 mm, with a predicted Breaks_out_of_10 value of 1.07. Based on the optimization model and cutting force analysis, this combination provides a predictive estimate of a 30–40% reduction in breakage compared with the baseline condition. The contribution of this study lies in integrating process improvement, statistical optimization, and mechanistic interpretation to support tool life control in industrial milling processes.
Co-Authors Agus Prasetyo Aprianur Fajri Baharudin Priwintoko Dedhy Prihtiantoro Fajrul Falah Hadromi Kacuk Cikal Nugroho M. Burhan Rubai Wijaya Saeful Rofi Romadhon Yusuf Subagyo