Procedia of Engineering and Life Science https://pels.umsida.ac.id/index.php/PELS <p>Procedia of Engineering and Life Science is an output from the National Science and Technology Seminar held by the engineering faculty of Muhammadiyah University of Sidoarjo</p> <p>&nbsp;</p> en-US p3i@umsida.ac.id (P3i Umsida) Sat, 30 Dec 2023 00:00:00 +0000 OJS 3.1.2.1 http://blogs.law.harvard.edu/tech/rss 60 Implementation of Heaven Theme Study in the Spirit of Worship https://pels.umsida.ac.id/index.php/PELS/article/view/1603 <p>Worship is a central aspect of religious life practiced by believers with the aim of drawing closer to the Creator and adhering to the teachings of their faith. In the journey of worship, the theme of paradise plays a significant role as a source of motivation and spiritual guidance. Paradise, viewed as the ultimate destination filled with eternal happiness, pleasure, and peace, holds importance across various religious beliefs. Implementing studies on the theme of paradise in the spirit of worship is relevant for deepening understanding, motivating, and enhancing the quality of believers' worship. This research employs a qualitative approach, combining literature analysis and field studies. The analysis reveals that understanding the concept of paradise significantly influences believers' worship spirit. The theme of paradise serves not only as a personal motivator but also reinforces religious values and shapes moral behavior and ethics within religious communities. Challenges in implementing studies on the theme of paradise include varying individual understandings and interpretations of religious texts.D iscussion highlights the need for harmonizing understanding of the concept of paradise, optimizing the implementation of paradise-themed studies in worship through religious education and community activities, strengthening religious values through religious education programs, and addressing challenges through open dialogue and contextual approaches. This research contributes to a deeper understanding of implementing studies on the theme of paradise in the spirit of worship and proposes steps for developing more meaningful and directed worship practices within the religious context.</p> khoiri khoiri Copyright (c) 2024 khoiri khoiri https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1603 Sat, 30 Dec 2023 00:00:00 +0000 Development of ETS (E-Ticketing System) Module for Issue Management at PT Pelayaran Nasional Ekalya Purnamasari https://pels.umsida.ac.id/index.php/PELS/article/view/1586 <p>This study presents a research proposal aimed at addressing the need for improved internal management systems in the logistics industry. The goal is to introduce an Employee Tracking System (ETS) module integrated with the Human Resource Information System (HRIS) to facilitate real-time communication and problem-solving within the organization. The study focuses on the practical challenges of organizational management and the ongoing evolution of information technology in the workplace. The proposed ETS module is expected to enhance employee communication and streamline issue resolution, ultimately contributing to improved organizational efficiency and effectiveness. The research methodology involves a one-month internship program, during which students will work on implementing the ETS module and evaluating its impact on internal management processes. The results of this study are expected to provide valuable insights into the potential benefits of integrating information systems in the logistics industry, with implications for similar organizations seeking to modernize their internal management practices.</p> <p><strong>Highlight :</strong></p> <ul data-sourcepos="5:1-6:62"> <li data-sourcepos="5:1-5:76">Problem:&nbsp;Logistics industry needs better internal management systems.</li> <li data-sourcepos="6:1-6:62">Solution:&nbsp;Integrate Employee Tracking System (ETS) with Human Resource Information System (HRIS) for real-time communication and problem-solving.</li> <li data-sourcepos="7:1-7:81">Research:&nbsp;Internship program implements and evaluates ETS module to assess impact on efficiency and effectiveness.</li> </ul> <p><strong>Keywords:</strong> Logistics, Employee Tracking System, HRIS integration, Real-time communication, Organizational efficiency</p> Muhammad Syamsuddin, Uce Indahyanti Copyright (c) 2024 Muhammad Syamsuddin, Uce Indahyanti https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1586 Wed, 21 Feb 2024 00:00:00 +0000 Electric Motor Maintenance https://pels.umsida.ac.id/index.php/PELS/article/view/1596 <p>Electric motors play a vital role in industrial operations, and their protection from overloading is crucial for ensuring longevity, safety, and efficiency. This article explores the significance of motor overload protection devices in safeguarding motors from damage caused by overloading, which can lead to overheating and potential failure. It discusses the functioning of various protection devices, such as thermal, magnetic, and electronic overload relays, and emphasizes the importance of selecting the right device based on motor type, size, application, and environmental conditions. The article also highlights the role of regular maintenance and adherence to safety standards in ensuring the reliable and effective functioning of these protection systems. By implementing appropriate protection measures, companies can optimize energy use, increase operational efficiency, and reduce damage and production disruptions, thus contributing to the sustainability and safety of electric motors in industrial settings vulnerable to overloading.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Overload relays protect the motor, motor branch circuit, and motor branch circuit components from excessive heat from the overload condition</span></li> <li><span class="">Overload relays are part of the motor starter and protect the motor by monitoring the current flowing in the circuit</span></li> <li><span class="">The selection of an overload relay is important because repeated tripping and reset can reduce the mechanical life of the relay and may cause damage to the motor</span></li> </ul> <p><span class=""><strong>Keywords:</strong> electric motors, overload protection devices, thermal overload relays, magnetic overload relays, electronic overload relays, motor type.</span></p> Akbar Rayhan Hasfi, Syamsudduha Syahrorini Copyright (c) 2024 Akbar Rayhan Hasfi, Syamsudduha Syahrorini https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1596 Tue, 20 Feb 2024 00:00:00 +0000 NH Fuse Maintenance as Low Voltage Network Protection at PT. PLN ULP 3 Krian, Sidoarjo, East Java https://pels.umsida.ac.id/index.php/PELS/article/view/1583 <p>This internship report presents an analysis of the NH replacement low voltage network maintenance activity in the XYZ region. The goal of this study is to determine the network conditions and potential interference, and to replace NHs that have exceeded their useful life limit or have been damaged with NHs that have specifications suitable for the low voltage network. The method used in this study is low voltage network analysis, which is important to maintain network reliability. The results show that NH replacement is a crucial maintenance activity that can minimize potential disruption to the network and prevent damage to the NH. The implication of this study is that by enhancing low voltage network reliability through NH replacement, the overall performance of the electric power distribution system can be improved.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">NH replacement is a crucial maintenance activity for low voltage networks.</span></li> <li><span class="">Low voltage network analysis is important to maintain network reliability.</span></li> <li><span class="">NH replacement can minimize potential disruption to the network and prevent damage to the NH.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> NH replacement, low voltage network, maintenance activity, network conditions, potential interference.</span></p> Fikri Alam Firmansyah, Izza Anshory Copyright (c) 2024 Fikri Alam Firmansyah, Izza Anshory https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1583 Thu, 22 Feb 2024 00:00:00 +0000 Maintenance On Ice Tube Maker Machine CV. Sampoerna Prima Gemilang https://pels.umsida.ac.id/index.php/PELS/article/view/1578 <p>The industrial ice machine, particularly the ice tube maker, requires regular maintenance to ensure optimal performance, extend its lifespan, and minimize unexpected breakdowns. Regular maintenance allows for timely inspection and cleaning of critical components, such as the condenser, evaporator, and water filtration system, to prevent clogging and hindering the machine's ability to produce ice at its optimal output. Preventative maintenance also plays a crucial role in identifying and addressing potential issues early on, preventing them from escalating into major problems and reducing the chances of unexpected breakdowns. This proactive approach reduces the risk of costly repairs and prolonged periods of downtime, ensuring that the ice machine is up and running when needed. Practical tips for preventative maintenance include regular cleaning and sanitizing, replacing water filters, inspecting and cleaning condenser coils, and scheduling professional maintenance. Prioritizing preventative maintenance for the ice tube maker is essential for maximizing performance, extending equipment lifespan, and minimizing downtime and costly repairs, which can have significant implications for businesses that rely on this equipment.</p> <p><strong>Highlight :</strong></p> <ul data-sourcepos="5:1-5:46"> <li data-sourcepos="5:1-5:46">Preventative maintenance&nbsp;is crucial for optimal performance,&nbsp;lifespan,&nbsp;and breakdown prevention of ice tube makers.</li> <li data-sourcepos="6:1-6:94">Regular cleaning, filter replacement, coil inspection, and professional service&nbsp;are key maintenance practices.</li> <li data-sourcepos="7:1-7:112">Reduced downtime, repair costs, and maximized performance&nbsp;are significant benefits of proper maintenance.</li> </ul> <p><strong>keywords :</strong> ice tube maker, maintenance, lifespan, performance, breakdown prevention.</p> Arief Tri Wicaksono, Jamaluddin Copyright (c) 2024 Arief Tri Wicaksono, Jamaluddin https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1578 Thu, 22 Feb 2024 00:00:00 +0000 ATS (Automatic Transfer Switch) Transmission System as Power Supplier for Pahlawan Booster https://pels.umsida.ac.id/index.php/PELS/article/view/1577 <p>This research aims to investigate the effectiveness of the Automatic Transfer Switch (ATS) system in power transmission by observing and simulating its operation. The results show that the ATS system is highly effective in minimizing downtime during power outages by automatically switching to a backup power source. This discovery has important implications for the management of distributed power networks, particularly in improving responsiveness to power outages. However, the ATS system still has some shortcomings that need to be addressed to avoid potential impacts. Overall, this study highlights the importance of the ATS system in ensuring uninterrupted power supply and the need for further research to improve its performance.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The ATS system is highly effective in minimizing downtime during power outages.</span></li> <li><span class="">The ATS system has important implications for the management of distributed power networks.</span></li> <li><span class="">Further research is needed to improve the performance of the ATS system</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Automatic Transfer Switch, Power Transmission, Downtime, Backup Power Source, Distributed Power Networks.</span></p> Nur Rachmad Arifin, Yusuf Manggala Dinata, Farid Setyo Pamungkas Copyright (c) 2024 Nur Rachmad Arifin, Yusuf Manggala Dinata, Farid Setyo Pamungkas https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1577 Thu, 22 Feb 2024 00:00:00 +0000 Chicken Sausage Production Process At PT. Charoen Pokphand Indonesia Food Division, Ngoro Unit https://pels.umsida.ac.id/index.php/PELS/article/view/1494 <p>This study investigated the chicken sausage production process and explored problem-solving strategies using fishbone diagrams. The analysis identified key stages, including raw material preparation, grinding, mixing, molding, cooking, cooling, cutting, and packaging. Fishbone diagrams were employed to systematically dissect process issues, revealing root causes related to personnel, methods, machines, materials, and environment. The findings highlight the effectiveness of fishbone diagrams for identifying and addressing production bottlenecks, paving the way for optimized efficiency and quality control in sausage manufacturing.</p> <p><strong>Highlight&nbsp;:</strong></p> <ul data-sourcepos="3:1-4:2"> <li data-sourcepos="3:1-3:150">Process breakdown:&nbsp;The study identified key stages in chicken sausage production (preparation,&nbsp;grinding,&nbsp;mixing,&nbsp;etc.) using fishbone diagrams.</li> <li data-sourcepos="4:1-4:2">Root cause analysis:&nbsp;Fishbone diagrams helped pinpoint root causes of process issues across various factors (personnel,&nbsp;methods,&nbsp;machines,&nbsp;etc.).</li> <li data-sourcepos="5:1-5:184">Quality improvement:&nbsp;The findings suggest fishbone diagrams as an effective tool for identifying and addressing bottlenecks,&nbsp;leading to optimized efficiency and quality control.</li> </ul> <p><strong>Keywords:</strong> chicken sausage, production process, fishbone diagrams, problem-solving, quality control</p> Irma Kiranti, Lukman Hudi, Rifky Pradiko Copyright (c) 2024 Irma Kiranti, Lukman Hudi, Rifky Pradiko https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1494 Tue, 20 Feb 2024 00:00:00 +0000 Application of the AHP Method to Assesment of Performance Levels of Production Employees of the Zenbo Division of PT. Mertex Indonesia https://pels.umsida.ac.id/index.php/PELS/article/view/1594 <p>This research aims to address the absence of an employee performance assessment system at a company by designing and implementing a system using the Analytical Hierarchy Process (AHP) method. The goal is to support decision-making and evaluate employee productivity, ultimately maintaining high company productivity. The AHP method was utilized to determine the level of productivity of each existing employee, leading to changes in ranking positions for certain operators. The results highlight the effectiveness of the AHP-based assessment system in enhancing employee productivity and its potential implications for decision support in performance evaluation.</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The research aims to design and implement an employee performance assessment system using the AHP method.</span></li> <li><span class="">The AHP method was effective in determining the level of productivity of each employee and led to changes in ranking positions for certain operators.</span></li> <li><span class="">The results highlight the potential implications of the AHP-based assessment system for decision support in performance evaluation.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> employee performance assessment, Analytical Hierarchy Process (AHP), decision-making, productivity, performance evaluation</span></p> Doni Prasetyo, Inggit Marodiyah Copyright (c) 2024 Doni Prasetyo, Inggit Marodiyah https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1594 Tue, 20 Feb 2024 00:00:00 +0000 Maintenance, OEE, Effectiveness Roving Machine Maintenance Using the Overall Equipment Effectiveness (OEE) Method at PT. Mertex Indoensia https://pels.umsida.ac.id/index.php/PELS/article/view/1593 <p>This study investigates the efficiency of roving machines at PT. Mertex Indonesia, revealing elevated downtime as a critical impediment impacting production flow and leading to decreased Overall Equipment Effectiveness (OEE) levels below industry benchmarks. By employing the OEE framework, we quantified the current state's performance at 66.92%, highlighting substantial room for improvement. Our findings underscore the need for targeted interventions aimed at reducing unplanned stoppages and enhancing equipment reliability, ultimately driving towards compliance with globally recognized best practices.</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Elevated downtime significantly impacts production flow and leads to low OEE levels.</span></li> <li><span class="">The current OEE level stands at 66.92% indicating significant potential for improvement.</span></li> <li><span class="">Targeted interventions aim to reduce unplanned stoppages and enhance equipment reliability, aligning with global best practices.</span></li> </ul> <p><span class=""><strong>Keywords: </strong></span><span class="">PT. Mertex Indonesia, </span><span class="">roving machines, </span><span class="">downtime, </span><span class="">Overall Equipment Effectiveness (OEE), </span><span class="">production flow.</span></p> Alfien Ramadhan Syach Putera; Inggit Marodiyah Copyright (c) 2024 Alfien Ramadhan Syach Putera; Inggit Marodiyah https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1593 Tue, 20 Feb 2024 00:00:00 +0000 Apllication Of The Moving Average Forecasting Method In Masonry Concrete Sales https://pels.umsida.ac.id/index.php/PELS/article/view/1591 <p>This study aims to create a concrete sales forecasting system using the moving average method to predict sales for the next month in order to determine the amount of production that must be supplied in the next period. The study uses the moving average method which is widely used and has accuracy in forecasting. The results obtained mean error of 32630.95, MAD of 224532, MSE of 80977550000, standard error of 318154, Mape of 12.621% and average forecast of 1960074.0. The study implies that the moving average method is an effective tool for sales forecasting and can be used to make informed decisions about production planning and estimating future growth</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study aims to create a concrete sales forecasting system using the moving average method.</span></li> <li><span class="">The moving average method is an effective tool for sales forecasting and can be used to make informed decisions about production planning and estimating future growth.</span></li> <li><span class="">The study provides statistical measures such as mean error, MAD, MSE, standard error, and MAPE to evaluate the accuracy of the moving average method.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Sales forecasting, Moving average method, Production planning, Accuracy, Informed decisions.</span></p> Mochammad Romi, Boy Isma Putra Copyright (c) 2024 Mochammad Romi, Boy Isma Putra https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1591 Tue, 20 Feb 2024 00:00:00 +0000 Accu Scrap Raw Material Inventorycontrol Using the Min- Max Method https://pels.umsida.ac.id/index.php/PELS/article/view/1590 <p>To address stockouts and overstock concerns in Accu scrap processing, this research introduces the application of the Min-Max method to enhance inventory control performance. Implementing this approach on bullion and ingot products resulted in a 33% improvement in inventory management effectiveness. The Min-Max method facilitated the determination of safe stock levels, minimal order quantities, and reorder points, thereby promoting efficient resource allocation and supply chain optimization. Consequently, manufacturers experienced reduced operating expenses while maintaining competitive edge and responsiveness to market dynamics</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The Min-Max method improved inventory management effectiveness by 33%.</span></li> <li><span class="">This approach facilitated the determination of safe stock levels, minimal order quantities, and reorder points.</span></li> <li><span class="">Manufacturers experienced reduced operating expenses while maintaining competitive edge and responsiveness to market dynamics.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Accu scrap processing, Min-Max method, inventory control, supply chain optimization, resource allocation</span></p> Muhammad Nur Faizin, Ribangun Bamban Jakaria Copyright (c) 2024 Muhammad Nur Faizin, Ribangun Bamban Jakaria https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1590 Wed, 21 Feb 2024 00:00:00 +0000 Quality Control Analysis Using the Failure Mode and Effect Analysis Method https://pels.umsida.ac.id/index.php/PELS/article/view/1589 <p>This study aimed to investigate critical factors contributing to defective Epodion® rh-Erythropoietin Alfa syringes, specifically focusing on reducing cracks during manufacturing. A Failure Mode and Effect Analysis (FMEA) approach was employed to identify the primary causes of failure, revealing cracking as the predominant issue affecting 43% of defective units. To mitigate this concern, we calculated a Risk Priority Number (RPN) of 162, highlighting the significance of addressing material-related issues. By recommending enhanced quality control measures for raw materials prior to their utilization within the production process, our findings suggest potential improvements in material strength, thereby minimizing product defects</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study aimed to investigate factors contributing to defective Epodion® rh-Erythropoietin Alfa syringes, with a focus on reducing cracks during manufacturing.</span></li> <li><span class="">A Failure Mode and Effect Analysis (FMEA) approach was used to identify the primary causes of failure, revealing cracking as the predominant issue affecting 43% of defective units.</span></li> <li><span class="">Enhanced quality control measures for raw materials prior to their utilization within the production process were recommended to minimize product defects.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Epodion, rh-Erythropoietin Alfa, syringes, FMEA, quality control.</span></p> Muchammad Lukman Hakim, Atikha Sidhi Cahyana Copyright (c) 2024 Muchammad Lukman Hakim, Atikha Sidhi Cahyana https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1589 Wed, 21 Feb 2024 00:00:00 +0000 Forecasting Analysis of Raw Material Demand in the Battery Breaker Production Process at PT IMLI https://pels.umsida.ac.id/index.php/PELS/article/view/1588 <p>Accurate demand forecasting is crucial for companies engaged in smelting, such as PT IMLI, to prevent shortages and inventory increases. This research aims to determine the most appropriate forecasting method for raw material demand based on historical data. Three methods were used: moving average with n = 3 and n = 5, and exponential smoothing with α = 0.2. The results showed that the Exponential Smoothing Method with α = 0.2 had the smallest error rate, with a MAPE value of 23%, MAD of 411, and MSE of 293303. This method can be used to optimize demand forecasting for the next period, ensuring that the company has sufficient raw materials for black tin smelting.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Accurate demand forecasting is crucial for companies engaged in smelting to prevent shortages and inventory increases.</span></li> <li><span class="">Three methods were used to determine the most appropriate forecasting method for raw material demand based on historical data: moving average with n = 3 and n = 5, and exponential smoothing with α = 0.2.</span></li> <li><span class="">The Exponential Smoothing Method with α = 0.2 had the smallest error rate, with a MAPE value of 23%, MAD of 411, and MSE of 293303, and can be used to optimize demand forecasting for the next period.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> demand forecasting, smelting, raw materials, historical data, moving average, exponential smoothing.</span></p> Muhammad Hizam Anshori, Atikha Sidhi Cahyana Copyright (c) 2024 Muhammad Hizam Anshori, Atikha Sidhi Cahyana https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1588 Wed, 21 Feb 2024 00:00:00 +0000 A Planning Purchasing Policies for Raw Material Welding Wire Using Economic Order Quantity (EOQ) Method to Reduce Overstock https://pels.umsida.ac.id/index.php/PELS/article/view/1587 <p>This study aims to determine the optimal order quantity of K71T welding wire for PT BMI's boiler production process to reduce storage and inventory costs. The Economic Order Quantity (EOQ) method is applied to calculate the optimal amount of material to be ordered in one period. The results show that the total inventory cost using the EOQ method is Rp. 89,060,000,- compared to the company policy of Rp. 290,840,000,-. The optimal number of orders is 407 boxes with a purchase frequency of 4 times per year and a safety stock of 181 boxes. The findings of this study can be used as a reference for other manufacturing companies that face similar procurement challenges to optimize their inventory management and reduce costs.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study determines the optimal order quantity of K71T welding wire, reducing storage and inventory costs.</span></li> <li><span class="">The Economic Order Quantity (EOQ) method is applied, resulting in a total inventory cost of Rp. 89,060,000,- compared to the company policy of Rp. 290,840,000,-.</span></li> <li><span class="">The findings can be used as a reference for other manufacturing companies facing similar procurement challenges to optimize their inventory management and reduce costs.<br></span></li> </ul> <p><span class=""><strong>Keywords:</strong> welding wire, optimal order quantity, inventory management, procurement challenges, manufacturing companies</span></p> Mike Vidiasari, Ribangun Bamban Jakaria Copyright (c) 2024 Mike Vidiasari, Ribangun Bamban Jakaria https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1587 Wed, 21 Feb 2024 00:00:00 +0000 A Raw Material Truck’s Queue System Optimization https://pels.umsida.ac.id/index.php/PELS/article/view/1570 <p>We present a field study investigating the impact of raw material supply chain optimization within PT Mekabox International, a producer of high-quality brown papers utilizing recycled sources. To ensure consistent productivity, maintaining supplier interest is crucial due to limited raw material availability. Our findings reveal that expediting unloading processes significantly improves supplier satisfaction beyond pricing alone. Through quantitative analysis using a multi-channel single-phase queuing model, we demonstrate that adding one additional unloading team reduces truck waiting times from 33 to 17 minutes. These improvements enhance operational efficiency, foster stronger relationships with suppliers, and ultimately contribute to sustainable growth in the brown paper industry.</p> <p><strong>Highlight :</strong></p> <ul data-sourcepos="7:1-7:49"> <li data-sourcepos="7:1-7:49">Optimizing the raw material supply chain for brown paper production&nbsp;can be achieved by expediting unloading processes,&nbsp;which improves supplier satisfaction.</li> <li data-sourcepos="8:1-8:34">Quantitative analysis using a queuing model&nbsp;shows that adding one more unloading team can reduce truck waiting times from 33 to 17 minutes.</li> <li data-sourcepos="9:1-9:64">These improvements&nbsp;lead to better operational efficiency,&nbsp;stronger relationships with suppliers,&nbsp;and contribute to sustainable growth in the brown paper industry.</li> </ul> <p><strong>Keywords:</strong> brown paper, raw material, supplier satisfaction, unloading, queuing model</p> Sugeng Prayitno, Wiwik Sulistiyowati Copyright (c) 2024 Sugeng Prayitno, Wiwik Sulistiyowati https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1570 Thu, 22 Feb 2024 00:00:00 +0000 Axle Pully Making Process For Conveyor Belt St40 Iron https://pels.umsida.ac.id/index.php/PELS/article/view/1559 <p><strong><em>Abstract</em></strong> <em>The process of manufacturing axles and pulleys for St40 iron belt conveyors is a crucial stage in the development of components capable of meeting the demands of severe industrial environments. This article provides a comprehensive overview of the set of steps required to create a precise and reliable axle and pully. From the technical design to the final finishing stage, each step is explained in detail to ensure optimal quality and performance. Material selection, cutting, forming, precision machining, welding, heat treatment, and protective spraying are integral components of this manufacturing process. By deeply understanding this process, it is expected that the belt conveyor industry can produce high-quality products that can withstand extreme operational conditions</em></p> <p><strong><em>&nbsp;</em></strong></p> Mukhammad Imam Baihaqi, Prantasi Harmi Tjhajajanti Copyright (c) 2024 Mukhammad Imam Baihaqi, Prantasi Harmi Tjhajajanti https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1559 Tue, 20 Feb 2024 00:00:00 +0000 Periodic Maintenance Analysis of Diesel Motor Generator Set 900 kVA Power as Backup Energy https://pels.umsida.ac.id/index.php/PELS/article/view/1597 <p>This study aims to evaluate the efficiency of generators as backup power sources through daily, monthly, and annual routine maintenance analysis to improve their reliability, availability, and operational health. The study was conducted in compliance with regulations related to electrical maintenance of aviation facilities and power plants. The methods used to determine the efficiency of generators include Mean Time Between Failures (MTBF), Actual Operating Time (AOT), Specified Operating Time (SOT), Probability, and Availability. The results show that the availability and average compliance of each generator can be determined through these calculations. The implication of this study is that it provides a framework for evaluating the efficiency and reliability of generators, which can be used to improve the performance of backup power sources.</p> <p><strong>Highlight&nbsp;:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Regular maintenance analysis is crucial for improving the efficiency and reliability of generators.</span></li> <li><span class="">Mean Time Between Failures (MTBF) and Actual Operating Time (AOT) are important metrics for evaluating the performance of generators.</span></li> <li><span class="">The study provides a framework for determining the availability and compliance of each generator, which can be used to improve their operational health.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> generators, backup power sources, maintenance analysis, reliability, availability.</span></p> Rois Nur Rofiq Salam, Edi Widodo Copyright (c) 2024 Rois Nur Rofiq Salam, Edi Widodo https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1597 Tue, 20 Feb 2024 00:00:00 +0000 Analysis of Work Accidents in the Lathe Workshop CV. XX Using the Job Safety Analysis Method with the Failure Mode and Effect Analysis Approach. https://pels.umsida.ac.id/index.php/PELS/article/view/1584 <p>This research aims to determine the level of risk and potential for work accidents in manufacturing processes that use heavy equipment such as lathes, which can cause accidents and disrupt production. The method used is job safety analysis (JSA) and suggestions for the complete use of Personal Protective Equipment (PPE) for workers in accordance with production equipment to reduce the risk of work accidents. The results show that being hit by a spark during the welding process has a failure mode severity level value, and being exposed to a gram when lathe has the highest value of failure mode occurrence and effect analysis. The failure mode detection and effect analysis value is the lowest due to limited PPE. The implication of this research is to provide a comprehensive understanding of the potential risks and safety measures that can be implemented to minimize work accidents in manufacturing processes.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Job safety analysis (JSA) and Personal Protective Equipment (PPE) are used to reduce the risk of work accidents in manufacturing processes that use heavy equipment.</span></li> <li><span class="">Being hit by a spark during the welding process has a failure mode severity level value, and being exposed to a gram when lathe has the highest value of failure mode occurrence and effect analysis.</span></li> <li><span class="">The research provides a comprehensive understanding of the potential risks and safety measures that can be implemented to minimize work accidents in manufacturing processes.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> manufacturing processes, heavy equipment, work accidents, job safety analysis, personal protective equipment.</span></p> Muhammad Tauhid Himam, Edi Widodo Copyright (c) 2024 Muhammad Tauhid Himam, Edi Widodo https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1584 Thu, 22 Feb 2024 00:00:00 +0000 Use of the CLARKE JU6H-NL30 Diesel Pump in Building Fire Suppression Systems https://pels.umsida.ac.id/index.php/PELS/article/view/1576 <p>This study investigates the suitability of the Clarke JU6H-30NL diesel pump engine as a supplementary solution for fire extinguishing systems in a banking facility during August–September 2023. Employing practical fieldwork methods, we analyzed the specifications, operational procedures, and benefits versus drawbacks of diesel pumps compared to electrical alternatives. Observational techniques were utilized to collect real-time data onsite. Our findings reveal that diesel pumps offer significant advantages such as uninterrupted operation during power failures, elevated water pressures, lower maintenance costs due to more accessible spare parts, and enhanced overall building safety and resilience against fires. These insights suggest that incorporating diesel pumps into existing fire protection strategies could provide reliable backup solutions, particularly in critical infrastructure settings where continuous operations are crucial.</p> <p><strong>highlight:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study analyzed the specifications, operational procedures, and benefits versus drawbacks of diesel pumps compared to electrical alternatives.</span></li> <li><span class="">Observational techniques were utilized to collect real-time data onsite.</span></li> <li><span class="">Diesel pumps offer significant advantages such as uninterrupted operation during power failures, elevated water pressures, and lower maintenance costs due to more accessible spare parts.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Clarke JU6H-30NL diesel pump engine, fire extinguishing systems, banking facility, uninterrupted operation, building safety.</span></p> Mohamad Affan Rahmadin, Iswanto Iswanto Copyright (c) 2024 Mohamad Affan Rahmadin, Iswanto Iswanto https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1576 Thu, 22 Feb 2024 00:00:00 +0000 The procedure for measuring fuel pressure on an injection motorbike uses a pressure gauge https://pels.umsida.ac.id/index.php/PELS/article/view/1574 <p>This study aimed to design and test a fuel pump pressure tester for injection motors to measure fuel pressure and determine whether the fuel pump is working properly. The qualitative method was used in the design process, which included creating design concepts, observation, and data processing. A literature review was conducted to strengthen the research results. The functional test in the final process showed that the tool could work well and provide information in measuring fuel pressure from the fuel pump. The implication of this study is that the fuel pump pressure tester can be used to prevent engine failure and improve engine performance.</p> <p><strong>Highlight:</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Qualitative method used in the design process</span></li> <li><span class="">Literature review conducted to strengthen research results</span></li> <li><span class="">Functional test showed tool can measure fuel pressure accurately</span></li> </ul> <p><span class=""><strong>Keywords:</strong> fuel pump pressure tester, injection motors, fuel pressure, engine failure, engine performance.</span></p> Diyas Robikh Arafat, Rachmad Firdaus Copyright (c) 2024 Diyas Robikh Arafat, Rachmad Firdaus https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1574 Thu, 22 Feb 2024 00:00:00 +0000 Repair and Maintenance of Ceramic Mould Pressing Machine https://pels.umsida.ac.id/index.php/PELS/article/view/1571 <p>This article presents the best practices for the maintenance and repair of ceramic pressing machines, which are crucial components of the ceramic production process. The goal is to ensure smooth operation, prevent unexpected breakdowns, and maintain production efficiency and quality. Regular maintenance, including cleaning, checking of critical components, and replacement of worn or damaged parts, is essential. Repairs should be carried out by trained and experienced technicians who can detect and fix problems before they become serious. Proper training for maintenance staff and machine operators is also important to ensure efficient machine operation and minimize production downtime. The results show that following these best practices can significantly improve the performance and longevity of ceramic pressing machines, leading to increased productivity and profitability for ceramic manufacturers.</p> <p><strong>highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Regular maintenance is essential to ensure smooth operation and prevent unexpected breakdowns of ceramic pressing machines.</span></li> <li><span class="">Repairs should be carried out by trained and experienced technicians to detect and fix problems before they become serious.</span></li> <li><span class="">Proper training for maintenance staff and machine operators is important to ensure efficient machine operation and minimize production downtime.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> ceramic pressing machines, maintenance, repair, production efficiency, quality.</span></p> Bagas Putra, Mulyadi Mulyadi Copyright (c) 2024 Bagas Putra, Mulyadi Mulyadi https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1571 Thu, 22 Feb 2024 00:00:00 +0000 Analyisis Of Boiler Reliability Maintenance System With Availability Ratio At PT. XXX https://pels.umsida.ac.id/index.php/PELS/article/view/1569 <p>This study investigates a food manufacturing firm's efforts to enhance operational efficiency by optimizing its maintenance strategy and spare parts management within the context of noodle production. The research focuses on reducing prolonged machine downtimes caused by boiler malfunctions, which negatively impact production targets. A novel approach combining total minimum downtime calculations and a hybrid corrective-preventive maintenance methodology has been proposed. To bolster this initiative, an efficient spare parts procurement scheme was implemented. Results demonstrate a substantial reduction in unplanned downtime following implementation, thereby improving overall productivity and profitability. Implications highlight the potential for widespread application across similar industries seeking to minimize disruptions while maximizing equipment lifetimes.</p> <p><strong>highlight :</strong></p> <ul data-sourcepos="2:1-4:63"> <li data-sourcepos="2:1-2:56">Reduced downtime through improved boiler maintenance.</li> <li data-sourcepos="3:1-3:69">Hybrid corrective-preventive maintenance for efficient operations.</li> <li data-sourcepos="4:1-4:63">Optimized spare parts procurement for enhanced productivity.</li> </ul> <p><strong>Keywords:</strong> noodle production, boiler maintenance, downtime reduction, spare parts management, hybrid maintenance.</p> Luthfi Frans Setiawan, Edi Widodo Copyright (c) 2024 Luthfi Frans Setiawan, Edi Widodo https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1569 Fri, 23 Feb 2024 00:00:00 +0000 Printing Machine Maintenance at PT Multi Anugerah Lestari Texindo https://pels.umsida.ac.id/index.php/PELS/article/view/1568 <p>This qualitative study investigates the environmental and social sustainability practices at PT Anugrah Lestari Texindo, a prominent PVC producer in Mojokerto, Indonesia. By employing analytical techniques, descriptions, and primary data through interviews, observations, and problem formulations, we examine this firm's production of flexible PVC materials, including synthetic leather, flooring, and colorants. Our findings reveal a commitment to sustainable development while balancing economic growth, highlighting the company's efforts towards waste reduction, energy efficiency, and community engagement. Implications from our research underscore the potential for further enhancing environmentally conscious manufacturing practices within the Indonesian plastics industry.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">The study examines the sustainable practices of a prominent PVC producer in Indonesia.</span></li> <li><span class="">The company shows a commitment to sustainable development while balancing economic growth.</span></li> <li><span class="">The research highlights the potential for enhancing environmentally conscious manufacturing practices in the Indonesian plastics industry.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Qualitative study, Environmental sustainability, Social sustainability, PVC producer, Indonesia.</span></p> Satrio Fajar Rahmananto, Prantasi Harmi Tjahjanti Copyright (c) 2024 Satrio Fajar Rahmananto, Prantasi Harmi Tjahjanti https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1568 Fri, 23 Feb 2024 00:00:00 +0000 Analysis of variation of iron coating rubber for upper punch moulds https://pels.umsida.ac.id/index.php/PELS/article/view/1567 <p>This study investigates the evolution of ceramic mold design and manufacturing processes, focusing on the role of punches in shaping ceramics through injection molding techniques. Key findings reveal diverse punch types—isostatic, pressure rubber, and exhaust punches—tailored to meet varying market demands. By employing ASTM 1045 high-performance 45 steel, we explore the impact of these punches on product quality and efficiency. Qualitative research methods, comprising literature review, observations, and interviews, were utilized to analyze the production process, formulation of ceramic bodies, and variations within ceramic molding tools and procedures. Our work contributes valuable insights into the advancements of injection molding technology, particularly in the context of rapid growth in polymeric materials' usage and their potential for mass production via fast cycle times and high quantities.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Diverse punch types tailored to meet market demands, including isostatic, pressure rubber, and exhaust punches</span></li> <li><span class="">Utilization of ASTM 1045 high-performance 45 steel for improved product quality and efficiency</span></li> <li><span class="">Employment of qualitative research methods, such as literature reviews, observations, and interviews, to examine the production process, ceramic body formation, and tool variations</span></li> </ul> <p><span class=""><strong>Keywords:</strong>&nbsp;ceramic mold, punches, injection molding, ASTM 1045 steel, diversified punches, qualitative analysis</span></p> Rizky Wahyu, Iswantoi Iswantoi Copyright (c) 2024 Rizky Wahyu, Iswantoi Iswantoi https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1567 Fri, 23 Feb 2024 00:00:00 +0000 Analysis of the causes of pressure drop in heat exchanger E-204 PT. ALP Petro Industry https://pels.umsida.ac.id/index.php/PELS/article/view/1566 <p><span class="">This study investigates the impact of gasket leaks and plate blockages on the efficiency of a Plate Heat Exchanger (PHE) and proposes remedial actions to mitigate these issues. The research focuses on the maintenance process involving dismantling, cleaning, and gasket replacements to address wear and dirt deposits. Results indicate that gasket blockages and leaks significantly reduce fluid flow and operational efficiency. By implementing periodic inspections, gasket replacements, and mechanical and chemical cleaning, a notable improvement in PHE efficiency is achieved, highlighting the importance of regular preventive maintenance for optimal performance and cost-effectiveness in industrial operations.</span></p> <p><strong><span class="">Highlight :</span></strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Regular maintenance involving dismantling, cleaning, and gasket replacements is crucial for addressing wear and dirt deposits in Plate Heat Exchangers (PHEs).</span></li> <li><span class="">Gasket blockages and leaks have a significant negative impact on fluid flow and operational efficiency in PHEs.</span></li> <li><span class="">Implementing periodic inspections, gasket replacements, and mechanical/chemical cleaning can notably improve PHE efficiency, emphasizing the importance of preventive maintenance for optimal performance and cost-effectiveness in industrial operations.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Plate Heat Exchanger, Maintenance,</span> Efficiency, Gasket Leaks, Preventive Maintenance</p> Ardhi Shefta Fernanda, Rachmat Firdaus Copyright (c) 2024 Ardhi Shefta Fernanda, Rachmat Firdaus https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1566 Fri, 23 Feb 2024 00:00:00 +0000 Centrifugal Pump Maintenance at PT UG MANDIRI https://pels.umsida.ac.id/index.php/PELS/article/view/1565 <p>Centrifugal pumps are widely used in industrial and municipal water affairs, but as the equipment ages or the fluid is abnormal, some mechanical and fluid failures will occur. These failure forms include loose fault, imbalance fault, misalignment fault, bearing fault, cavitation, water hammer, abnormal flow passage, etc. To address these issues, this study proposes a predictive and preventative maintenance (PPM) program that incorporates four areas and six parameters that define a pump's performance. The program uses smart sensors and digital Internet of Things (IoT) systems to monitor the real-time running status of centrifugal pumps and perform signal acquisition, analysis, feature extraction, and fault diagnosis. The study also conducted experiments to simulate various failures of centrifugal pumps and verified the effectiveness of the PPM program. The results show that the program can effectively perform the intelligent operation and maintenance of pump units, which can improve the reliability and efficiency of centrifugal pumps.</p> <p><strong>Highlight :</strong></p> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">A predictive and preventative maintenance (PPM) program for centrifugal pumps incorporates four areas and six parameters that define a pump's performance.</span></li> <li><span class="">The program uses smart sensors and digital Internet of Things (IoT) systems to monitor the real-time running status of centrifugal pumps and perform signal acquisition, analysis, feature extraction, and fault diagnosis.</span></li> <li><span class="">The PPM program can effectively perform the intelligent operation and maintenance of pump units, which can improve the reliability and efficiency of centrifugal pumps.</span></li> </ul> <p><span class=""><strong>Keywords:</strong> centrifugal pumps, predictive and preventative maintenance, smart sensors, IoT systems, fault diagnosis.</span></p> Wahyu Hikmatiarun Yahya, Mulyadi Mulyadi Copyright (c) 2024 Wahyu Hikmatiarun Yahya, Mulyadi Mulyadi https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1565 Fri, 23 Feb 2024 00:00:00 +0000 Analysis of the Causes of Crooked Cane Carrier Shafts at the Kremboong Sugar Factory https://pels.umsida.ac.id/index.php/PELS/article/view/1561 <div class="border-borderMain/60 dark:border-borderMainDark/80 divide-borderMain/60 dark:divide-borderMainDark/80 ring-borderMain dark:ring-borderMainDark bg-transparent"> <div class="relative default font-sans text-base text-textMain dark:text-textMainDark selection:bg-superDuper selection:text-textMain"> <div class="min-w-0 break-words [word-break:break-word]"> <div dir="auto">This study investigates the problem of damage to the Cane Carrier shaft due to overload in sugar mills. The aim is to understand the exact cause of the bend of the Cane Carrier due to overload and find solutions to prevent it. The study found that overload and lack of regular maintenance were major factors in the breakdown of Cane Carrier shafts. To resolve this issue, the study recommends a change in load management, implementation of stricter preventive maintenance, and the implementation of regular overload monitoring. These measures can reduce damage to the Cane Carrier shaft and improve operational efficiency. The research makes an important contribution to the understanding and handling of the problem of damage to Cane Carrier shafts due to overload, and is relevant for the sugar industry and in the field of mechanical engineering.</div> <div dir="auto"><strong>Highlight :</strong></div> <div dir="auto"> <ul class="list-outside list-decimal marker:font-mono marker:text-sm pl-11"> <li><span class="">Overload and lack of regular maintenance are major factors in the breakdown of Cane Carrier shafts.</span></li> <li><span class="">Change in load management, implementation of stricter preventive maintenance, and the implementation of regular overload monitoring can reduce damage to the Cane Carrier shaft and improve operational efficiency.</span></li> <li><span class="">The research makes an important contribution to the understanding and handling of the problem of damage to Cane Carrier shafts due to overload, and is relevant for the sugar industry and in the field of mechanical engineering</span></li> </ul> <p><span class=""><strong>Keywords:</strong> Cane Carrier shaft, overload, regular maintenance, sugar mills, mechanical engineering.</span></p> </div> </div> </div> </div> Rangga Bayu Puspawarna, A’rasy Fahruddin Copyright (c) 2024 Rangga Bayu Puspawarna, A’rasy Fahruddin https://creativecommons.org/licenses/by/4.0 https://pels.umsida.ac.id/index.php/PELS/article/view/1561 Fri, 23 Feb 2024 00:00:00 +0000