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All Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Turbo : Jurnal Program Studi Teknik Mesin Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Nyayu Aisyah
Universitas Gadjah Mada
Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Control & Systems Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Review of Carbon Capture Technology and Its Potential Application to Reduce Emissions In Heavy Equipment Exhausts Mutiara Putri; Nyayu Aisyah; Sugiyanto Sugiyanto; Lety Trisnaliani
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 10, No 3 (2025): October 2025
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

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Abstract

Carbon emissions from diesel engines, particularly those from heavy equipment, are a significant greenhouse gas emitter in industries such as construction, mining, and logistics. As global efforts toward decarbonization intensify, carbon capture technologies offer a solution to reduce global emissions. This paper conducts a literature review to explore current carbon capture technologies—including chemical sequestration, physical sequestration, and membrane separation—and evaluates their potential for integration with heavy equipment exhaust systems. Key considerations include system size, energy requirements, maintenance, and operational compatibility. Integration of exhaust heat recovery systems is also assessed as a complementary solution to address the high energy demands of carbon capture in the environment. Technical, economic, and regulatory challenges are discussed, along with potential innovations and use cases that could support future deployments. The findings indicate that although carbon capture is still in its infancy, targeted applications and modular designs supported by policy incentives could enable practical implementation in the near future. This review provides a foundation for future research, pilot projects, and system designs aimed at enabling sustainable operation of heavy equipment
Analisis Downtime Engine Motor Grader XCMG GR3005T Pro Menggunakan Metode Reliability Centered Maintenance II (RCM II) Dan Failure Mode And Effect Analysis (FMEA) Muhammad Arkan Adelard Arkan; Nyayu Aisyah; Lilik Dwi Setyana; Andhi Akhmad Ismail
Jurnal Teknologi dan Rekayasa Alat Berat Vol 3 No 01 (2026): JTRAB Volume 3, No 1, 2026
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v3i01.22225

Abstract

The evaluation of engine system downtime in the XCMG GR3005T Pro motor grader was conducted using the Reliability-Centered Maintenance II (RCM II) and Failure Mode and Effects Analysis (FMEA) methods. Failure data and maintenance history from February 2023 to November 2024 were utilized to identify failure modes, calculate Risk Priority Number (RPN) values, and formulate appropriate maintenance actions. A total of 63 failure modes were identified across 23 engine components, with the Solenoid Fuel Supply Pump exhibiting the highest RPN value (126). Four major components were classified as critical components, namely the Solenoid Fuel Supply Pump, Oil Pump, Fuel Supply Pump, and Water Pump. The recommended maintenance strategies include Scheduled On-Condition Tasks and Scheduled Discard Tasks, determined based on the RCM II Decision Diagram evaluation. This approach is intended to reduce downtime, enhance engine system reliability performance, and maximize equipment availability.
Studi Performa dan Analisis Kerusakan Sistem Hidrolik Excavator Mini Excavator Zhugimada Muhammad Hisyam Ar-Rizqi; Braam Delfian Prihadianto; Sugiyanto Sugiyanto; Nyayu Aisyah
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.v14i2.4608

Abstract

The hydraulic system plays a vital role in supporting excavator performance by transmitting power through pressurized fluid to actuate the boom, arm, and bucket. However, fluid leakage can significantly reduce operational efficiency and performance. This study aims to analyze the hydraulic system performance of the Zhugimada mini excavator trainer unit before and after repair. Tests were conducted on three main parameters: silinder drift, silinder speed, and silinder pressure, under three load conditions zero capacity, struck capacity, and heaped capacity. The results show that leakage was caused by damage to the fittings on the arm and bucket silinders, the seal on the boom silinder, the valve connecting the tank and pump, and an electric motor speed exceeding the standard (1,491 rpm). The leakage impact was indicated by a decrease in silinder speed 1.41% for the boom, 1.34% for the arm, and 0.51% for the bucket and a 16.28% pressure drop in the boom under no-load conditions. After the repair, system performance improved significantly, with boom speed increasing by 0.92%–2.04% and arm speed by 0.82%–1.77%. The repair effectively addressed both internal and external leakage and improved the overall efficiency of the hydraulic system.
Analisis Manajemen Inventori Consumable Goods Dotting Gloves dengan Metode Buffer Stock dan Reorder Point Achmad Fikry; Sugiyanto Sugiyanto; Nyayu Aisyah; Braam Delfian Prihadianto
Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 2 (2024): JTRAB Volume 1, No 2, 2024
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v1i2.13267

Abstract

This research aims to optimize consumable goods inventory control for dotting gloves items in a heavy equipment company. The inventory control process uses mathematical calculation methods, namely additional inventory (buffer stock) and reorder points as well as designing a web-based inventory application system. The research results showed that stock outs occurred repeatedly for dotting gloves. In 2023, the initial inventory of this item will be out of stock for 4 months. The frequency of purchasing dotting gloves is relatively small, only done twice in 5 months. After calculating the buffer stock and reorder point, the company is advised to place a reorder when the stock of dotting gloves reaches 83 pairs or 7 dozen to maintain the continuity of the company's operations. Next, a web-based inventory management application was created to automatically detect reorder points on dotting glove items.
Co-Authors Achmad Fikry Andhi Akhmad Ismail Lety Trisnaliani Lilik Dwi Setyana Muhammad Arkan Adelard Arkan Muhammad Hisyam Ar-Rizqi Mutiara Putri Prihadianto, Braam Delfian Sugiyanto Sugiyanto