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JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY
Published by Universitas Medan Area
ISSN : 25496220     EISSN : 25496239     DOI : -
Core Subject : Science, Engineering,
Energy Industrial & Manufacturing Engineering Mechanical Engineering
This journal is a publication media of research results in the field of machinery that has been carried out by academics or practitioners by following predetermined rules. The research areas include: manufacturing, engineering materials, energy conversion and renewable energy, as well as other machinery fields, such as: mechatronics, hydraulics, plantation tools, and engine maintenance management systems. Each paper that has been sent will be reviewed by a team of experts in their field, and published online through the http://ojs.uma.ac.id/index.php/jmemme url address. This journal was founded in 2017 and has been registered with a print version of ISSN 2549-6220 and the online version of ISSN 2549-6239.
Arjuna Subject : -
Articles 211 Documents
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Development of a Soybean Crushing Machine Based on the VDI 2221 Method at UKM Tempe Tiga Putra Hilmi Syifa, Ahmad Zada; Ayudyah Eka Apsari
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.13864

Abstract

UKM Tempe Tiga Putra, located in Jepara, faces challenges in the manual soybean crushing process. This process takes approximately 2 hours and 30 minutes per day to handle a daily capacity of 65 kg and imposes significant physical strain on workers, especially on the wrists. This study aims to design a more efficient and ergonomic soybean crusher using the VDI 2221 method. The resulting machine features specifications such as a ¼ hp AC motor, a hollow galvanized frame, an A-type V-belt, and dimensions tailored to the operator's anthropometry. The machine reduces processing time to 24 minutes per day, improving efficiency by 83.97%. The VDI 2221 method facilitated a design that meets the technical and economic requirements of the UKM while enhancing operator comfort. This innovation not only boosts production efficiency but also minimizes the risk of injury from manual labor. Consequently, the tool significantly enhances productivity and fosters a better working environment at UKM Tempe Tiga Putra.
A Energy Efficiency Strategy in Manufacturing Industry Through Implementation of Automation Technology Gede Arya Rachman; Rifki Saiful; Ratna Ariati; Syukri M. Nur; Erkata Yandri
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.13998

Abstract

The implementation of automation technology in the manufacturing industry has become a critical solution in facing global energy efficiency challenges. Amid increasing demands for reduced energy consumption and carbon emissions, the manufacturing sector is required to adopt innovative solutions in their operations. This study aims to analyze and evaluate energy efficiency strategies through the application of automation technology in the manufacturing sector, with a focus on optimizing energy consumption and increasing productivity. The research methodology uses both quantitative and qualitative approaches, including analysis of historical energy consumption data from 50 manufacturing facilities that have implemented automation systems, in-depth interviews with industry experts, and comparative evaluation of various automation technologies available in the market. The results show that the implementation of automation technology can reduce energy consumption by an average of 27.5% in the first 12 months, with an increase in production efficiency by 35%. Further analysis reveals that automation systems based on the Internet of Things (IoT) and artificial intelligence provide optimal results in energy management, with an average return on investment of 2.3 years. The integration of smart sensors and automated control systems has proven to be effective in optimizing energy use in production processes, predictive maintenance, and peak load management. The study also identified key challenges in implementation, including high initial investment costs, personnel training needs, and the complexity of system integration. The study found that key factors for successful implementation include strategic planning, top management support, and a comprehensive training program. In conclusion, the application of automation technology in the manufacturing industry is an effective strategy to achieve long-term energy efficiency, with the potential for significant savings and increased industrial competitiveness.
Techno – Economic Analysis for Biorefinery Gede Arya Rachman; Syukri M. Nur
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.14014

Abstract

This comprehensive study explores the implementation of technical-economic analysis in the context of biorefinery, a key solution in the transition to a sustainable bio-based economy. The global biorefinery industry has witnessed significant growth, with a market value reaching USD 614.25 billion in 2022 and projected to grow at a CAGR of 8.2% through 2030. However, increasing energy consumption in biorefinery operations has raised concerns about economic efficiency and sustainability, underscoring the critical role of technical-economic analysis. This study adopts a bibliometric approach, integrating quantitative and qualitative analysis to systematically examine the implementation of technical-economic analysis in biorefinery. The study offers several key findings: (1) the chemical, manufacturing, and food processing sectors account for a significant share of energy consumption, with a potential reduction of 30-40% through biorefinery implementation; (2) the integration of technical-economic analysis in biorefinery operations has resulted in a 40% increase in biomass conversion efficiency, a 35% increase in resource utilization, and a 45% reduction in waste generation, while delivering an annual ROI of 22%; (3) the application of technical-economic analysis has resulted in substantial cost savings, energy efficiency, and reduced environmental impacts. The study also identifies challenges, such as high initial investment and potential resistance to change, as well as the need for further research on the scalability and transferability of the proposed framework. In addition, the findings highlight important policy and regulatory implications, emphasizing the need for targeted incentives and industry-specific guidelines to promote the integration of technical-economic analysis in biorefinery projects. This study provides a comprehensive understanding of the critical role of technical-economic analysis in transforming the biorefinery industry, paving the way for a more sustainable and resilient bio-based economy. The key insights and practical recommendations presented in this study can serve as valuable guidance for industry practitioners, policy makers, and researchers in advancing the adoption of this transformative strategy.
Bioenergy Industry Management Challenges and Opportunities in the Energy Transition Era Gede Arya Rachman; Syukri M. Nur
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.14015

Abstract

The era of global energy transition has positioned bioenergy as a critical component in diversifying renewable energy sources. This study aims to analyze the implementation of bioenergy industry management in the context of energy transition, with a focus on the development of an integrated risk management framework and operational optimization. Through a systematic literature review (SLR) approach to publications from the 2019-2024 period from the Scopus, Web of Science, Science Direct, and ProQuest databases, this study integrates findings from 247 selected articles. The results of the analysis show a significant increase in operational efficiency of up to 45% through the implementation of an integrated risk management framework, including a real-time monitoring system and an AI-based decision-making platform. The financial impact analysis reveals a reduction in OPEX of 34.4% and an increase in CAPEX ROI from 15.3% to 22.8%. From an environmental perspective, the implementation of the framework has succeeded in reducing CO2e emissions by 36.5% and water use by 25%. This study identifies four main challenges in implementation: technology gaps, supply chain complexity, immature regulatory frameworks, and the need for human resource development. The developed framework integrates technical, economic, and social aspects, providing practical guidance for the industry in the transition to sustainable bioenergy. This research contributes to the development of theoretical framework and practical guidelines for bioenergy industry management, while opening up new research opportunities in the integration of blockchain, IoT, and advanced AI technologies for operational optimization. The results show that continuous evolution in the management approach of the bioenergy industry is key to realizing an effective and sustainable energy transition.
Modification of Nyamplung Seed Peeling Machine Transmission Muhammad Ilham Alhabsyie; Wilarso; Awang Surya; Asep Saepudin; Aswin Domodite
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.14238

Abstract

Design of a nyamplung seed peeling machine with a 0.5 HP electric motor drive source with 1400 rpm rotation using a Ø76 mm pulley transmission system with a 1:1 ratio with a v-belt type A-24. After testing, it was found that from 100% of the nyamplung seeds there were seeds that were crushed and their contents were not processed, as many as 55% of the nyamplung seeds were found, apart from that when the machine was run there were seeds that were thrown out of the hopper so that the results of the machine design were deemed not to be as expected. To overcome this problem, it is necessary to modify the previous research machine so that the peeling process between the seeds and the nyamplung shell can improve the quality. The results of the modification of the nyamplung seed peeler tool were obtained with a duration of 13 seconds, the number of nyamplung seeds was 25 pcs, of which 17 were peeled. There were 5 pcs of whatever were not peeled, and 3 pcs were crushed. The second trial had a duration of 14 seconds, the number of seeds sampled was 25, 18 were peeled, the remaining 4 were not peeled and 3 were crushed. The third trial lasted 15 seconds out of a total of 25 pieces peeled, the result was 19 pieces peeled and the remaining 2 pieces failed, 4 pieces were destroyed
Design and Construction of Prototype of CNC Plasma Cutting Machine Simulator 3 Axis Based on Stepper Motor and Mach3 PC Software Asep Dharmanto; Nur Rofiq; Asep Saepudin; Aswin Domodite; Wilarso
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.14289

Abstract

In a workshop, the machining or cutting process of plates must be done quickly and accurately, while most of them are still done manually or by hand. One of the technologies used today is the CNC (Computerized Numerical Control) machine which is one of the results of the development of machining technology that can be operated automatically and continuously, so that it can support the need for requests for complex workpiece shapes, high accuracy and in large quantities. In its processing, this workpiece is very difficult to do with a manual process or with ordinary tools. To overcome this, a CNC plasma cutting machine design was made. CNC plasma cutting is a CNC machine whose motion system can move the plasma eye or torch according to computer commands. The design of this plasma cutting machine is carried out with a design process to determine the dimensions of the machine and calculations to determine the specifications of the drive motor, with the design of the electric wiring diagram and the selection of controller selection specifications for the system. By testing the precision of the tool during the experiment. The purpose of this design is to create a CNC plasma cutting machine with easily obtainable materials and capable of carrying out complex plate cutting work with high tool precision. This CNC plasma cutting machine uses 3-axis CNC as the main driver, namely the X axis, Y axis and Z axis, and is operated with Mach3 software as a CNC machine controller and uses a stepper motor to move the axis axis. Mach3 software was chosen because it has an easy configuration because there is an auto tuning feature in determining the precision of each axis and is easy to operate, and easy to get on the internet, so that with this CNC plasma cutting machine it can help a workshop in doing sheetmetal work efficiently and accurately which in the end can save material, time and cost of work
Sustainable Biodiesel Industry: A Techno-Economic Framework For Evaluating Biodiesel Production Uhanto; Muhammad Syukri Nur
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 2 (2025): December 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i2.14134

Abstract

This study evaluates the technical and economic aspects of the biodiesel industry, focusing on factors affecting production feasibility and industry sustainability. Secondary data for the analysis were sourced from published and Scopus-indexed research. The study identifies biodiesel characteristics, production processes, techno-economic aspects, and the biodiesel market. The analysis indicates that biodiesel has significant potential as an alternative to fossil fuels. It shares comparable energy density and cetane numbers with fossil diesel while providing superior lubrication properties and lower CO₂ emissions. Biodiesel transesterification achieves high efficiency with alkaline catalysts and feedstocks with low free fatty acid content, resulting in higher biodiesel yields. From an economic perspective, feedstock costs constitute 75–80% of the total biodiesel production cost, posing a major challenge due to the high price volatility of feedstocks in the market. Supportive policies for utilizing local and non-food feedstocks are necessary to reduce dependence on similar and relatively expensive raw materials. The financial sustainability of biodiesel production depends on production process efficiency and feedstock price stability. Economic feasibility is measured using indicators such as Net Present Value (NPV) and Internal Rate of Return (IRR). This knowledge provides valuable insights for developing more effective strategies in the biodiesel industry, supported by targeted policies that enhance both economic and environmental viability.
Bioenergy as a Key Driver of Energy Transition: A Case Study of Emission Reduction and Energy Security Saiful, Rifki; Nur, Syukri M
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 2 (2025): December 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i2.14158

Abstract

The transition to renewable energy is an urgent step in addressing the global climate crisis and reducing dependence on fossil fuels, which have increased greenhouse gas emissions and exacerbated climate change. In this context, bioenergy emerges as an important solution because it not only helps reduce carbon emissions through cleaner and carbon-neutral combustion but also increases energy security by diversifying energy sources, especially through the utilization of organic biomass such as agricultural and forestry waste. This study aims to study more deeply about bioenergy as a key driver of energy transition through case studies related to emission reduction and energy security enhancement. Bioenergy plays an important role in the global energy transition because it is able to reduce dependence on fossil fuels and reduce carbon emissions. In addition to helping create a more resilient energy system by utilizing local biomass resources, bioenergy also supports the principle of a circular economy through the utilization of organic waste. Despite offering many benefits, bioenergy development faces challenges such as resource supply and production efficiency, but the opportunities to overcome these challenges remain large through technological innovation and supportive policies. Bioenergy plays an important role in the global energy transition towards clean energy by reducing carbon emissions and increasing energy security through the utilization of renewable biomass. Despite challenges in terms of policy, technology, and raw material supply, the great potential of bioenergy can be optimized through innovation and policy support to strengthen a more sustainable energy system. This study shows that bioenergy has great potential to reduce carbon emissions and increase energy security through the use of renewable biomass, but further development is needed to overcome efficiency and policy challenges to support the transition to a more sustainable energy system.
Evaluation of Occupational Safety and Health Requirements in Confined Space at Turbine Maintenance PT. Sinergi Nusantara Gula PG Tjoekir Lilis Hindun Wahyuni; Merry Sunaryo; Muslikha Nourma Rhomadhoni; Friska Ayu
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 2 (2025): December 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i2.14281

Abstract

Confined space is a high-risk workplace because it contains various sources of danger such as toxic gases, lack of oxygen, and fire risk. PT. Sinergi Gula Nusantara PG Tjoekir has implemented work procedures based on BINWASNAKER No. 113/DJPPK/XI/2006, but evaluation is needed to ensure compliance with the latest regulations, namely Permenaker No. 11 of 2023. The study aimed to evaluate the OSH Requirements in confined space turbine maintenance at PT. SGN PG Tjoekir is by Permenaker no. 11 of 2023, including confined space classification, access restrictions to enter confined spaces, entry permits, safe work procedures, equipment and equipment, and OSH confined space personnel. The type of research method used is qualitative descriptive, namely providing an overview of OSH requirements in a limited space for turbine maintenance. Then the data obtained is compared to its conformity with Permenaker No. 11 of 2023. The results of this study out of 17 conditions that must be met only 60% that have been met. The conditions that have not been met are the classification of confined space, testing and monitoring of hazardous atmospheric gases, labeling and energy isolation forms, supply respirators, testing, and monitoring equipment for hazardous atmospheric gases, penetrating voltage measuring instruments, and OSH confined space personnel. This study concludes that the OSH requirements in confined space turbine maintenance are in the category of lacking. The advice provided by the company can update the entry permit procedure and increase compliance with the latest regulation, namely Permenaker No. 11 of 2023 to improve work safety.
Analysis of the Effect of Biodiesel Use on the Wear of Heavy Equipment Machinery Components in the Mining Industry Gede Arya Rachman; Syukri M. Nur
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 2 (2025): December 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i2.14577

Abstract

This study analyzes the effect of the use of B30/B35 biodiesel on the wear of heavy equipment engine components in the Indonesian mining industry. Through a longitudinal experimental design for 12 months, the study was conducted on 24 units of heavy equipment consisting of excavators, bulldozers, and articulated dump trucks in three different mining locations: a coal mine in East Kalimantan, a nickel mine in Southeast Sulawesi, and a gold mine in Papua. The results show that the use of B30/B35 biodiesel consistently reduces the wear rate of components compared to conventional diesel. Nozzle injector wear in the biodiesel group is 18.6% lower, piston ring wear is 15.3% lower, cylinder liner wear is 12.7% lower, and bearing wear is 14.2% lower. SEM and EDS analysis revealed that biodiesel forms a tribochemical layer on metal surfaces that reduces direct contact between surfaces and minimizes wear. The analysis of the lubricant showed lower concentration of metal particles and better lubricant quality parameters in the biodiesel group. The developed predictive model indicates an extension of component life of around 15-20% with the use of biodiesel, potentially providing maintenance cost savings of 12-18% per year. These findings change the perception that the use of biodiesel is solely regulatory compliance, to an operational strategy that provides economic and technical benefits. This study provides a scientific basis for the optimization of preventive maintenance programs for mining heavy equipment that uses biodiesel and supports the sustainability of the implementation of the national mandatory biodiesel policy.

Page 20 of 22 | Total Record : 211

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