cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota medan,
Sumatera utara
INDONESIA
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
 17   18   19   20   21 
Development of an Equivalent Carbon Monitoring System for ACT Students at PT Toyota Motor Manufacturing Indonesia Hessa Sinai Singadipoera; Suryawhan Arifandi Mufriandi; Dhani Gusti Saputra
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.v9i1.13125

Abstract

PT Toyota Motor Manufakturing Indonesia (TMMIN) is a company with a production base for exporting vehicles and components in Asia Pacific. PT TMMIN has a vocational college called the Toyota Indonesia Community Academy (AKTI) so that it can help build the automotive industry in Indonesia. Toyota has a program called the Toyota Environmental Challenge 2050 which is a form of realization of the SDGs. AKTI as part of the Toyota business line has the initiative to play a role in this program by providing training to AKTI students in the form of a green curriculum. It is hoped that with the green curriculum AKTI students will be able to know the equivalent use of the carbon they produce in their daily activities. Therefore, AKTI needs to develop a website-based system, using the Agile methodology with the Extreme Programming (XP) framework, the PHP programming language with the Laravel 8 framework, and a MySQL database. In system development, functional modeling analysis is carried out which produces several diagrams such as use case diagrams, activity diagrams and class diagrams. The system can manage the process of using electrical devices by students, manage the process of student green activities, and monitor the equivalent value of carbon emissions for each student. This can be a reference for AKTI to prepare AKTI students who have environmental awareness values ​​to support PT TMMIN's green program.
Wing Simulation Using Naca 0018 and 0024 and Aluminum Alloy 7075 T6-SN and 7050-T7451 Materials for Lift and Drag Pane, Medyawanti
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v8i2.13164

Abstract

Analysis of the airfoil's shape on an airplane wing is essential because geometry can determine aerodynamic performance and the forces at work, such as lift and drag. In this research, two types of aluminum materials, namely Aluminum Alloy 7075 T6-SN and Aluminum Alloy 7050-T7451, will be tested to find out which one can produce the highest lifting force and drag force on NACA 0018 and 0024 as well as look at the pressure contour and speed Contour of each type of material using ANSYS Fluent software at a speed of 200 m/s. From the simulation and calculation results, it was obtained that the highest lift coefficient and drag coefficient on the NACA 0018 Airfoil were using Aluminum Alloy 7075-T6 SN material, namely 6.83 N and 6.89 N. Meanwhile, in the NACA 0024 Airfoil simulation, the highest lift coefficient and thrust coefficient were obtained. It also uses aluminum Alloy 7075-T6 SN, namely 3.23 N and 4.64 N.
Application of Keyless Security System in Credenza Product Design Purwanto, Agung Ari; Setiawan, Yogi
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.v9i1.13101

Abstract

A credenza is a type of furniture commonly utilized as a storage unit for various items, typically equipped with conventional physical locks. These locks, often made from iron, metal, or brass, pose a high risk of theft and require more time to unlock. This study proposes an alternative solution for enhancing storage security systems by incorporating Radio Frequency Identification (RFID) technology. The adoption of a keyless security system based on RFID aims to replace conventional physical locks, offering improved security and efficiency. The primary objective of this research is to evaluate the effectiveness of RFID technology and its practical application in credenza furniture. Experimental results using Medium Density Fibreboard (MDF) as the material indicate that the maximum functional door thickness is 50 mm, with an authentication time of 1.27 seconds. The production process yielded a credenza featuring an RFID Reader Box installed on the inner side of the door, positioned 100 mm from the top edge, and a locking component located on the inner left wall, 115 mm from its edge.
The Influence of Operational Conditions on the Cold Test of CFB Boiler for Fluidization Process Using Air Cap Bell-Type Mauk, Syifa Ainun; Pajri, Oppy Oktaviani; Ashfani, Khansa; Alwan, Hafid
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.v9i1.10626

Abstract

Fluidization is a method of contacting solid particles with a fluid so that they exhibit fluid-like properties. One industrial application of fluidization is the fluidization process in power plants using Circulating Fluidized Bed (CFB) boilers where air is blown from the bottom as coal is burned to keep it suspended above the furnace. The variations used were air flow rates of 32,09; 62,72; 91,89; 123,98 and 154,61 m3/hour, bed material heights of 20; 30 and 40 cm, and types of bed material of coal and silica sand. This research aims to investigate the effects of changes in primary air flow, bed height, and type of bed material in the bed on fluidization behavior in CFB using an air cap bell-type through cold testing for easier observation. The results of this research show that at an air flow rate of 154,61 m3/hour and a bed material height of 40 cm, the highest pressure drop was obtained. For silica sand and coal, the pressure drops were 3,51 and 1,11 kPa, respectively. For the silica sand bed material, various fluidization phenomena were observed, while for coal, only the fixed bed phenomenon was observed.
The Effect of Using Single Retention on Papermaking Process to Improve Product Quality and Reduce Costs: Case study Brown Paper Manufacturing Aldy Pradana; Ni Njoman Manik; Amelia Rahmatika; Erwin
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.v9i1.11424

Abstract

Many objects around us use paper-based materials. Recycle fiber is an alternative raw material with great potential to meet fiber needs and overcome environmental problems. Paper with virgin pulp raw materials has a higher production cost than paper with recycled fiber raw materials. Apart from fiber raw materials, the chemicals used also cause high production process costs. Currently, the industry uses a double retention system for $ 63,022.5 per month; this cost comes from using more chemicals. This study aims to determine the effect of the use of single retention on machine run ability and the quality of paper produced and to find out how much production cost savings from the use of single retention. In this study, brown paper was made using CPAM chemicals as retention materials and silica as comparison retention materials with doses of 0.25kg/ton, 0.5kg/ton, 0.75kg/ton, and 1kg/ton, respectively. Then, wet-end properties testing was carried out, which included drainage and FPR. Furthermore, dry-end properties testing, which included internal bonding, concord, ring crush, and tensile testing, was carried out on a laboratory scale. The results showed that using a maximum dose of cpam of 0.25kg/ton got better results. In using cpam above 0.25 kg/ton, quality degradation results are obtained, but the drainage produced continues to increase as the dose increases; this is influenced by the amount of floc formed in the stock, thus affecting the run ability of the machine. After research and calculations with the application of single retention in the brown paper manufacturing process, considerable cost savings were obtained, and quality can be maintained using strength agents.
Design of a 2 HP Power Waste Shutter Machine Using on-Grid PLTS With 6 x 290 WP Pangalitan, Agung; Samosir, Rahmad; Pane, Medyawati
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.v9i1.12541

Abstract

In the campus environment, the management of organic waste such as leaves is of particular concern, so a 2 HP organic waste shredder was designed with a rotation speed of 1450 rpm, a 150 mm diameter pulley, and a 6200 mm long shaft with 21 blades 15 mm thick, 25 mm wide, 100 mm long, and 24 mm diameter motor shaft made of S45C steel, supported by a 1.47 kW motor; Testing of this machine at various waste loads shows optimal results with different electrical power and engine rotation, such as at loads of 0.2 kg (237.8 V, 6.27 A, 1.49 kW), 3.5 kg (184 .1 V, 5.97 A, 1.15 kW , 1493 rpm), 5 kg (221.2 V, 6.37 A, 1,409 kW, 1990 rpm), and 8 kg (234.6 V, 6.38 A, 1,496 kW), so that this machine is supported by an on-grid PLTS with a power of 1740 WP which is able to increase the efficiency of electricity costs for the needs of operating the chopping machine. Keywords: 2HP AC motor; organic chopping machine  
Potential Reduction of CO2 Emissions in Transportation Bus Vehicles with Diesel Fuel and Compressed Natural Gas : Case Study: Fuel Mix Variations Fikri Fahlevi Nasution; Martin, Awaludin
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.v9i1.11107

Abstract

The Indonesian government continues to strive to reduce CO2 emissions, with a target reduction of 29% by 2030. In urban areas, motor vehicles are the largest contributors to CO2 emissions, accounting for 70%. One of the steps that can be taken to reduce CO2 emissions is by using Compressed Natural Gas (CNG) as a vehicle fuel. The purpose of this writing is to study the impact of replacing Diesel Fuel with CNG on the CO2 emissions generated by transportation buses.. Based on the discussion, the CO2 emissions produced by 100 city buses (fuel consumption of 100 L/unit/day) are 26.20 tons of CO2/day, 785.96 tons of CO2/month, and 9,562.56 tons of CO2/year for 100% diesel fuel. For 100% CNG fuel, the emissions are 0.02 tons of CO2/day, 0.63 tons of CO2/month, and 7.72 tons of CO2/year. CO2 emissions are reduced by 2.61 tons of CO2/day, 78.54 tons of CO2/month, and 955.49 tons of CO2/year for every 10% reduction in diesel fuel usage. CO2 emissions can be reduced by up to 99.9% by replacing diesel fuel with CNG. The area of forest required to eliminate CO2 with 100% diesel fuel composition annually is 16.79 hectares, while with 100% CNG composition, it is only 0.01 hectares. The forest area required decreases by 1.67 hectares for every 10% reduction in diesel fuel composition.
Hydrogen Production Simulation From Empty Palm Oil Bunches Using Aspen Plus Sapari, Budiman; Hotman H. Simatupang; Isra Anwar; Muhammad Syukri 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.v9i1.12046

Abstract

A simulation model of biomass gasification for hydrogen production has been further developed using Aspen Plus. The model developed is based on Gibbs free energy minimization using the finite equilibrium method. The objective was to study the effect of important parameters such as gasification temperature, steam to biomass ratio and shift reaction temperature on hydrogen concentration. Simulations were conducted for palm empty bunch feedstock. The simulation results show that the main gas components in the synthetic gas are H₂, CO, CO₂, CH₄. Hydrogen gas increases with increasing temperature, hydrogen concentration increases from 22 kg/hour to 64 kg/hour but CH₄ concentration decreases from 50 kg/hour to 0 kg/hour with increasing temperature from 500-800˚C under 500 kg/hour steam flow rate operation.
Damage Analysis and Repair of a Small-Scale ORC (Organic Rankine Cycle) Prototype Turbine During Testing Siburian, Rivaldo; Antonius, Dikky; Abadi , Surjo
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.v9i1.12316

Abstract

This research discusses the damage analysis and repair of an Organic Rankine Cycle (ORC) prototype turbine that experienced failure during testing. The damage occurred due to a collision between the rotor blades and stator blades, causing the rotor blade to break. The primary cause was identified as a manufacturing error in the turbine stator, where the flange holes were misaligned with the shaft. Additionally, the use of improper locking flange bolts and loose fitting on the coupling and stator shaft contributed to this issue. The research methodology included failure analysis using Process Failure Modes and Effects Analysis (PFMEA) to identify potential failures and prioritize corrective actions. The results indicate that adjustments in the manufacturing process, the use of high-precision measurement technology, improved material quality control, and better technician training can significantly reduce the risk of future failures. Furthermore, evaluating operational conditions and conducting regular inspections are recommended to ensure optimal turbine performance. With the implementation of these corrective actions, the ORC turbine prototype is expected to operate more reliably and efficiently during testing and use. This research is expected to make a significant contribution to enhancing the reliability and efficiency of ORC system turbines, and provide guidance for the future development and testing of turbines.
Design of an IoT-Based Control System for Energy Storage Efficiency and Monitoring Siti Kholifah Kamino; Ferdiansyah, Muhammad; Agus Salim Wardana
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.v9i1.13342

Abstract

The increasing demand for efficient, transparent, and adaptive energy storage systems presents a significant challenge in supporting the global transition to renewable energy. This study presents the development of an Internet of Things (IoT)-based control system designed to optimize intelligent energy storage management. The system is built around an ESP32 microcontroller and integrates voltage, current, and temperature sensors, alongside wireless communication modules, all connected to a web-based dashboard for real-time monitoring. A dynamic control algorithm is employed to enhance the efficiency of the charging and discharging processes. Experimental results show a charging efficiency of 95% and a discharging efficiency of 94.74%, accompanied by a low data latency of 120 ms. The monitoring sensors demonstrate exceptional accuracy, with deviations within ±1% for voltage and current, and ±2°C for temperature, surpassing conventional systems. Compared to traditional approaches, the IoT-based system offers significant improvements in operational efficiency, data accuracy, and transparency in energy management. These findings highlight the potential of IoT integration in electronic control systems as an innovative solution for smart, efficient, and reliable energy storage. Future research should focus on scaling the system for industrial applications and incorporating artificial intelligence to predict performance and adapt system conditions in real-time

Page 19 of 22 | Total Record : 211

 17   18   19   20   21 

Filter by Year

2017 2025


Reset
Filter By Issues
All Issue Vol. 9 No. 2 (2025): December 2025 Edition Vol. 9 No. 1 (2025): June 2025 Edition Vol. 8 No. 2 (2024): December 2024 Edition Vol. 8 No. 1 (2024): June 2024 Edition Vol. 7 No. 2 (2023): Edisi Desember 2023 Vol. 7 No. 1 (2023): Edisi Juni 2023 Vol. 6 No. 2 (2022): Edisi Desember 2022 Vol 6, No 1 (2022): EDISI JUNI Vol 5, No 2 (2021): EDISI DESEMBER Vol 5, No 1 (2021): EDISI JUNI Vol 4, No 2 (2020): EDISI DESEMBER Vol 4, No 1 (2020): EDISI JUNI Vol 3, No 2 (2019): EDISI DESEMBER Vol 3, No 1 (2019): EDISI JUNI Vol 3, No 1 (2019): EDISI JUNI Vol 2, No 2 (2018): Edisi Desember Vol 2, No 2 (2018): Edisi Desember Vol 2, No 1 (2018): EDISI JUNI Vol 2, No 1 (2018): EDISI JUNI Vol 1, No 2 (2017): Edisi Desember Vol 1, No 2 (2017): Edisi Desember Vol 1, No 1 (2017): EDISI JUNI Vol 1, No 1 (2017): EDISI JUNI More Issue