JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY
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.
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<![CDATA[Design of Distillation Equipment for Extracting Atsiri Oils from Serai Wangi Leaves Using the Steam and Water Method ]]>
<![CDATA[Syafrizal, Muhammad]]>;
<![CDATA[Irwansyah]]>;
<![CDATA[Siswo Pranoto]]>;
<![CDATA[Idris, Muhammad]]>;
<![CDATA[Darianto, Darianto]]>;
<![CDATA[Indra Hermawan]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.6402
<![CDATA[Distillation is a technique for extracting Atsiri oils from various plants, one notable example being the Serai Wangi plant (Cymbopogon nardus), a type of herb commonly used in medicine, beauty products, and even as an additive to fuel. Atsiri oils from Serai Wangi can be produced through various methods, such as extraction. The advantage of this method is that it does not require high temperatures, thereby preventing the oil from degrading easily. Consequently, this distillation equipment design was developed to assist farming communities in acquiring an efficient distillation machine. The design process began with a literature study related to the design of distillation equipment. It involved calculating the design of the device and testing the functionality of the distillation equipment. The parameters observed were the effective capacity of the device, its performance, and the yield results. The outcome of this Serai Wangi oil distillation equipment design, featuring an evaporation tank, is that the evaporation process, where the burning furnace heats the water in the tank and steam is directed to the condenser through a connecting pipe, operates efficiently and can produce Atsiri oils of high quality and quantity.]]>
<![CDATA[Analysis of Fuel Level Monitoring System Design In Fuel Tank Generator Set ]]>
<![CDATA[Widianto, Maulana Luky]]>;
<![CDATA[Nurhadi]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.10110
<![CDATA[The fuel monitoring system for Generator Sets in mining areas is currently non-existent, resulting in an inability to determine fuel depletion status, consequently rendering the units inoperable and not functioning as intended. This research aims to design a fuel monitoring system for generator set fuel tanks using LoRa communication and ultrasonic sensors. Additionally, it seeks to investigate the effects of different LoRa bandwidth variations and distances on the time of air (ToA) for fuel level data transmission. The study employs an experimental method to explore the relationship between LoRa bandwidth variations (KHz) of 125, 250, and 500 KHz, as well as distances between modules (m) of 25, 50, 75, and 100 meters, concerning the time of air (ToA) for fuel level data transmission. The results of this research include the design and implementation of a fuel level monitoring device. The study demonstrates that the shortest data transmission time occurs at a bandwidth of 125 KHz and a distance of 25 meters, while the longest data transmission time occurs at a bandwidth of 500 KHz and a distance of 100 meters. This indicates that both bandwidth and distance significantly influence the time of air (ToA) or data transmission duration for fuel level monitoring.]]>
<![CDATA[Corrosion Rate of Ship Fuel Pipes Due to the Use of HSD B0 and HSD B30 ]]>
<![CDATA[Tubagus Nur Ilham]]>;
<![CDATA[Dwisetiono]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.10121
<![CDATA[Pipes are an important part of the world of shipping because most ships use pipes as a medium for transferring liquids from one tank to another or from one place to another. The use of biodiesel B30 as a mixture of diesel fuel high speed diesel (HSD) has an impact on the engine and other components. The method used in calculating the corrosion rate is the loss method which refers to the ASTM G31-71 standard using a test kit flow loop and potentiostat. Corrosion rate obtained by using a test toolflow loop until the 75th day that the B0 corrosion rate was 0.003534 mm/y and the B30 corrosion rate was 0.0047366 mm/y. The corrosion rate obtained by using a potentiostat corrosion testing tool showed that the B0 corrosion rate was 0.00000016 mm/y and the B30 corrosion rate was 0.00000963 mm/y. There is an additional 30%fatty acid methyl ester (FAME) palm crude oil can increase the corrosion rate.]]>
<![CDATA[Comparison of Welding Results Using Oxy Acetylene Welding (OAW) and Gas Metal Arc Welding (GMAW) on Brass Leaf Propeller Repair ]]>
<![CDATA[Mochamad Yusuf Afandi]]>;
<![CDATA[Dwisetiono]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.10256
<![CDATA[Propeller is one of the means of producing thrust to propel ships. In sailing in sea or river waters, ship propellers often hit foreign objects floating or floating in the waters which cause damage to the propeller in the form of bent, cracked or broken propeller blades. The purpose of this study is how to compare the results of welding Oxy Acetylene Welding (OAW) and Gas Metal Arc Welding (GMAW) against testing on the repair results of propeller blades made of Brass (Brass). To find out the results of welding Material testing Destructive Test (DT) Results of the maximum tensile strength (ultimate tensile strength) in Gas Metal Arc Welding (GMAW) welding of 342,368 MPa, Results of Gas Metal Arc Welding (GMAW) hardness strength of 101 HB, Results from Impact Gas Metal Arc Welding (GMAW) of 0.850 j/mm2 and the Non-Destructive Test (NDT) results from metallographic observations of the finer grains, the grande size looks small, then the composition is homogeneous, so the structure is stronger and more ductile.]]>
<![CDATA[Efficiency Analysis (Debit & Head Losses) of Centrifugal Pumps at PDAM Tirta Terubuk Bengkalis ]]>
<![CDATA[Wondo Nasrul Hayat]]>;
<![CDATA[Erwen Martianis]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.10323
<![CDATA[A pump is a device used to raise liquid from a lower position to a higher position. This study analyzes the efficiency of the centrifugal pump used in the air supply system at the Tirta Terukalis Bengkalis Water Supply Company (PDAM). The main focus of the analysis is on the parameters of water discharge, head losses, and centrifugal pump efficiency. This analysis was carried out at PDAM Tirta Terubuk Bengkalis. The data used in this study include the results of an airflow rate of 0.0073 m3/s, a pressure loss of 11 m, and a pump efficiency of 73%. The results of the study revealed that the water discharge was 0.0073 m3/s and the loss stress was 11 m, the pump efficiency reached 73%. This study provides insight into the performance of centrifugal pumps in certain situations in PDAM Bengkalis.]]>
<![CDATA[Optimization of Heating Time for Natural Rubber Motorcycle Inner Tire Patches ]]>
<![CDATA[Sulaiman, Zaid]]>;
<![CDATA[Bagas Akbar Gumelar]]>;
<![CDATA[Lazuardi Akmal Islami]]>;
<![CDATA[Muhammad Bagas Ananda]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.10349
<![CDATA[Tires have the main function of the vehicle to sustain the strength of the vehicle. Damage to tires that often occurs is punctured and broken. One way to repair it is by patching the inner tube. The purpose of this study was to find out the optimal heating time when patching tires. Tires are said to have optimal strength when they have strong adhesion and have no defects when given air pressure. The sample preparation method used is conventional tire patching. The tests carried out were adhesive testing, macro testing, FTIR testing, and thickness testing. The inner tube used is natural rubber. The test results show that the heating time of 15 minutes has the highest adhesive strength and the bond between the tire patch and the patch glue is well connected. However, the longer the heating time, the thinner the inner tube becomes. The thinner the inner tube causes the "swelling" defect in the inner tube when the inner tube is given air. The results of the FTIR test show that the rubber glue patches are natural rubber materials. So that the adhesion that occurs this time is the relationship between natural rubber and natural rubber]]>
<![CDATA[Characteristics of Ketapang Leaf Extract and PVA Nano Fibers Using the Electrospinning Method ]]>
<![CDATA[Sela, Melinia]]>;
<![CDATA[Anida Chairatunnisa]]>;
<![CDATA[Rina Aprilia]]>;
<![CDATA[Rahmanita]]>;
<![CDATA[Ida Sriyanti]]>;
<![CDATA[Leni Marlina]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.10943
<![CDATA[The electrospinning method is a method of making nanofibers using the influence of an electric field to produce a jet of electrically charged polymer solution. In this experiment, polyvinyl alcohol (PVA) nanofibers and ketapang leaf extract with various viscosities were made using electrospinning equipment with a static collector. Scanning using an electron microscope (SEM) shows that the morphology of the nanofibers formed looks homogeneous, continuous, and without beads (beads free). The SEM results were analyzed using ImageJ software, which was then carried out using Origin software to determine the fiber diameter. Diameter size distribution with fiber diameter size distribution ranging from 2000 to 8000 nm.]]>
<![CDATA[The Effectiveness of Two-Stage Adsorption Using Adsorbents Activated with Strong Acid and Base Solutions on Biogas ]]>
<![CDATA[Tira, Hendry Sakke]]>;
<![CDATA[Padang, Yesung Allo]]>;
<![CDATA[Arifin, Muh Samsul]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.11447
<![CDATA[This study discusses the development of a two-stage adsorption application to enhance methane content in biogas. The adsorption process utilizes zeolite sourced from Lombok Island. To achieve this objective, the zeolite is activated using HCl and KOH solutions, each with concentrations of 3 Molar and 20%, respectively. Additionally, the zeolite is physically activated by heating it in a furnace at 300°C for 3 hours, followed by chemical activation. Research findings indicate that activation of zeolite with these compounds yields a significant increase in methane content compared to adsorption using non-activated zeolite. The improvement in methane content reaches at least 45%. These results demonstrate substantial potential in enhancing biogas production efficiency through two-stage adsorption using chemically activated zeolite. Additionally, this outcome underscores the understanding that without activation, zeolite from Lombok cannot function optimally as an adsorbent.]]>
<![CDATA[Study of the Flexural Resistance of Unsaturated Polyester Composite Reinforced by Finely Ground Sugarcane Bagasse Fiber for Light Construction ]]>
<![CDATA[Nusyirwan]]>;
<![CDATA[Zulfadly Koto]]>;
<![CDATA[Xhycho Vachanidyo]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.11482
<![CDATA[One of the polymer materials widely used in the field of engineering construction to be a candidate to replace metal materials is unsaturated polyester. This reason is because this material has many advantages such as low mass, ease of shape and resistance to moisture. However, this material still has many shortcomings, including low mechanical strength and easy cracking. Unsaturated polyester polymer material is widely used as a matrix for making composite materials for engineering fields such as vehicles and ship hulls. This research studies the flexural strength of composite materials from unsaturated polyester reinforced with finely ground sugarcane fibre. From the results of flexural strength testing, it is known that there is a tendency towards the variable addition of finely ground sugarcane fibre. increases from 10% to 20%, and after 20% the bending stress value tends to decrease. The maximum flexural stress value was obtained by adding a percentage of finely ground sugarcane fibre. with a percentage of 20% 102.32 MPa, this value can increase the maximum flexural stress value of pure polyester by 42.52 MPa, showing an increase of 249.63%]]>
<![CDATA[Strength Analysis of Crusher Construction in Nyamplung Seed Peeling Machine Using the Finite Element Method ]]>
<![CDATA[Nandang Imam Santosa]]>;
<![CDATA[Asep Dharmanto]]>;
<![CDATA[Asep Saepudin]]>;
<![CDATA[Wilarso]]>
<![CDATA[ JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/jmemme.v8i2.11757
<![CDATA[The nyamplung seed peeling machine uses a single roll crusher as its operating principle to automatically separate the nyamplung fruit's shell. One of the crucial parts of this apparatus that breaks down the nyamplung fruit shells is the crusher. The issue arises from the fact that the strength of the material utilized to construct the crusher is still unknown. This raises questions regarding how well the Nyamplung bean peeling machine crusher will function if it is used constantly. The purpose of this study is to identify the kind of material that works well for a nyamplung seed peeling machine crusher. An analysis will be conducted to ascertain the strength of the Nyamplung seed peeling machine crusher to follow up on this issue. The finite element method was used to conduct the testing. ASTM A36 and AISI 304 are the two materials that are compared in this analysis. In addition, it can be used to compare two different types of materials in terms of their strength, cost, and degree of safety. Following analysis for manual shaft calculations utilizing AISI 304 and ASTM A36 materials. With a yield strength of 250 N/mm², a safety factor of 9, a displacement of 0.022 mm, and von Mises stress readings of 29.044 N/mm² were achieved from the crusher simulation utilizing ASTM A36 material. Von Mises stress for the AISI 304 material was 28.471 N/mm², displacement was 0.023 mm, safety factor was 7, and yield strength was 206.804 N/mm².]]>
