Jurnal Teknik Mesin
Jurnal Teknik Mesin (JTM) adalah Peer-reviewed Jurnal tentang hasil Penelitian, Karsa Cipta, Penerapan dan Kebijakan Teknologi. JTM tersedia dalam dua versi yaitu cetak (p-ISSN: 2089-7235) dan online (e-ISSN: 2549-2888), diterbitkan 3 (tiga) kali dalam setahun pada bulan Februari, Juni dan Oktober. Focus and Scope: Acoustical engineering concerns the manipulation and control of vibration, especially vibration isolation and the reduction of unwanted sounds; Aerospace engineering, the application of engineering principles to aerospace systems such as aircraft and spacecraft; Automotive engineering, the design, manufacture, and operation of motorcycles, automobiles, buses, and trucks; Energy Engineering is a broad field of engineering dealing with energy efficiency, energy services, facility management, plant engineering, environmental compliance, and alternative energy technologies. Energy engineering is one of the more recent engineering disciplines to emerge. Energy engineering combines knowledge from the fields of physics, math, and chemistry with economic and environmental engineering practices; Manufacturing engineering concerns dealing with different manufacturing practices and the research and development of systems, processes, machines, tools, and equipment; Materials Science and Engineering, relate with biomaterials, computational materials, environment, and green materials, science and technology of polymers, sensors and bioelectronics materials, constructional and engineering materials, nanomaterials and nanotechnology, composite and ceramic materials, energy materials and harvesting, optical, electronic and magnetic materials, structure materials; Microscopy: applications of an electron, neutron, light, and scanning probe microscopy in biomedicine, biology, image analysis system, physics, the chemistry of materials, and Instrumentation. The conference will also present feature recent methodological developments in microscopy by scientists and equipment manufacturers; Power plant engineering, the field of engineering that designs, construct, and maintains different types of power plants. Serves as the prime mover to produce electricity, such as Geothermal power plants, Coal-fired power plants, Hydroelectric power plants, Diesel engine (ICE) power plants, Tidal power plants, Wind Turbine Power Plants, Solar power plants, Thermal engineering concerns heating or cooling of processes, equipment, or enclosed environments: Air Conditioning; Refrigeration; Heating, Ventilating, Air-Conditioning (HVAC) and Refrigerating; Vehicle engineering, the design, manufacture, and operation of the systems and equipment that propel and control vehicles.
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<![CDATA[Effect of Intake Manifold Porting and Polishing and Throttle Body Venturi Diameter Modification on Motorcycle Performance ]]>
<![CDATA[Anbia, Gun Gun]]>;
<![CDATA[Arwati, I Gusti Ayu]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.27416
<![CDATA[This study aims to investigate the effect of intake manifold and throttle body modifications on the performance of a Yamaha Mio M3 125cc motorcycle engine. A two-level factorial experimental design with two factors was employed: intake manifold diameter (27 mm and 30 mm) and throttle body diameter (26 mm and 28 mm). Data were collected using a dyno test and analyzed using statistical methods. The results revealed that intake manifold and throttle body modifications significantly influenced the performance of the Yamaha Mio M3 125cc motorcycle engine. The combination of a 27 mm intake manifold and a 28 mm throttle body produced the highest torque of 23.1 Nm at 2,058 RPM, while the combination of a 27 mm intake manifold and a 26 mm throttle body generated the highest power of 11.2 HP at 7,155 RPM. These modifications resulted in a 10.53% increase in torque and a 16.67% increase in power compared to the standard configuration. Modifying the intake manifold and throttle body can enhance the performance of the Yamaha Mio M3 125cc motorcycle engine. Keywords: Intake manifold modification, Throttle body modification, Engine performance, Yamaha Mio M3 125cc]]>
<![CDATA[EFFECT OF SINTERING TEMPERATURE ON TUNGSTEN CARBIDE DENSITIES AND POROSITY ]]>
<![CDATA[Ade, Ade Saputra]]>;
<![CDATA[Hidayat, Imam]]>;
<![CDATA[Prijono, Kusdi]]>;
<![CDATA[Dimyati, Arbi]]>;
<![CDATA[Salam, Rohmad]]>;
<![CDATA[Rohmat, Nur]]>;
<![CDATA[Suhendi, Suhendi]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.23016
<![CDATA[The manufacture of tungsten carbide begins with mixing WC with Co in the milling process and then the compaction process is carried out using a compacting machine. After that, the sintering process is carried out to increase the strength of the material. From various studies it was found that the sintering temperature had an effect on the density of the tungsten carbide produced. The problem is what is the best sintering temperature for WC (Tungsten carbide). This study was intended to analyze the effect of temperature on the density and porosity of tungsten carbide. The research was carried out with a compaction press load of 20 tons with 4 variations of sintering temperature and heating electric current strength, namely 50A -600°C, 60A -800°C, 70A -1000°C and 80A -1200°C. The results of this study prove that the WC sintering temperature has a significant effect on density and porosity. The highest average density of 9.4763 g/ml was achieved by specimens with a sintering temperature of 1.000°C and a current of 70A. Microstructural observations using SEM-EDX also proved that this specimen had the best density compared to other specimens.]]>
<![CDATA[MANUFACTURE AND TESTING OF VIBRATION TEST SCHEMES FOR PIPING SYSTEMS ]]>
<![CDATA[Ali, Ali]]>;
<![CDATA[Saputra, Hendiawan Nugraha Aldi]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.25377
<![CDATA[Piping system is the distribution of fluids through pipes. This is often in everyday life, an example is the water pipe in every house that is used to fulfill desires and in the industrial field pipes are often used to distribute petroleum fluids as well as offshore and onshore. Supports have a very important role to overcome the loads that occur at points that experience excessive loads caused by the weight of pipes and other devices. In general, dynamic failures in pipe systems are caused by resonance from the vibrations of the pipe stretch. Therefore, this research is intended to determine the effect of valve opening variation and pedestal distance variation on vibration in the pipe system so that it can be used for consideration in designing a piping system. This research uses an experimental approach starting with the preparation of a vibration test scheme and then testing using a vibration meter. The test data was processed and statistically analyzed so that it was found that at 100% valve opening, the largest value is at a pedestal distance of 180 cm with a flow rate of 2.8 m/s2 and the largest 50% valve opening is at the same pedestal distance of 180 cm with a flow rate of 2.3 m/s2. The farther the pedestal distance, the greater the vibration and deflection and the greater the flow discharge produced, the higher the vibration produced]]>
<![CDATA[INCREASED DRIVING FORCE OF NATURAL PLANT FIBER EXTRACTION RESULTS BASED ON THE RESULTS OF THE DEVELOPMENT OF NATURAL FIBER EXTRACTORS ]]>
<![CDATA[Azizi, Muhammad]]>;
<![CDATA[Azharuddin, Azharuddin]]>;
<![CDATA[Malik, Irawan]]>;
<![CDATA[Fitri, Muhamad]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.27623
<![CDATA[This research was motivated by the lack of utilization of wasted plant parts so that there were previous extractors that had been made but were still not optimal. This study itself aims to determine the effect of changes in the driving power of natural plant fiber extractors on the extracted fibers compared to previous extractors so that later the fiber produced can be used as the main material for making natural composites. In this study, the extractor is a tool used to extract plant fibers lining banana stems. The method used in this study is by developing the previous extractor, especially in the drive motor that used to use a DC motor and then replaced with a 5.5 HP gasoline motor, drum blade cap, tool transmission and water drain slide. After the development of the extractor was carried out, it continued with the initial data collection process with the loading method with an average banana stem layer length of 165.5 〖mm〗^2 and an average weight of 6.91 kg where the results can be used to determine the power of the drive motor used in this tool. The process of extracting plant fiber from banana stem layers to determine the influence of the quality and quantity of fiber produced after tool development. As a result, the time needed to extract plant fibers averaged 9.3 seconds compared to previous tools which averaged 37.6 seconds manually and 42.3 seconds with DC motors.]]>
<![CDATA[STUDY OF FINITE DIFFERENCE METHOD IN HEAT FLOW SIMULATION OF TWO-CHAMBER THERMOS SEPARATOR MADE OF POLYPROPYLENE USING MATLAB APPLICATIONS ]]>
<![CDATA[Pandriana, Aap]]>;
<![CDATA[Pudjiwati, Sri]]>;
<![CDATA[Alva, Sagir]]>;
<![CDATA[Tarigan, Kontan]]>;
<![CDATA[Sudarma, Andi Firdaus]]>;
<![CDATA[Khaerudini, Deni Shidqi]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.27803
<![CDATA[Heat transfer can be defined as transfer of energy from one area to another as a result of temperature differences in objects. This indicates heat transfer not only explains how heat energy is transferred from one object to another, but can also predict the rate of heat transfer that occurs under certain conditions. In this case, what is related to the heat flow model equation is two-chamber thermos separator where the separator is made of polypropylene. This separator functions to prevent the flow of heat from one side to the other side of the thermos tube. Polypropylene is included in the insulator category, although heat transfer still occurs. The heat transfer will be calculated using the finite difference method in parabolic partial differential equations using the Matlab application. The heat transfer process is assumed to occur by conduction, with a separator length of 1 cm. Assume the first side of the divider has a right temperature of 100°c, and the other side 20°c. The temperature point measured on the separator is located in the center of the separator. After completing the solution using the Matlab application with the finite difference method, a heat transfer flow simulation was obtained in the two-chamber thermos separator which shows the heat flow transfer at any time. At 0.1 seconds the temperature at T1 is 2.4°c, while at 10 seconds is 65.9704°c. Then at 0.1 seconds the temperature at T4 is 0.48°c, while at 10 seconds 19.5436°c. The conclusion is in the separator of the two-chamber thermos there is significant heat flow from the side of the first tube to the other side.]]>
<![CDATA[The Effect of Paracetamol Inhibitor Concentration and Immersion Time to The Corrosion Rate and Toughness in 3% NaCl Media ]]>
<![CDATA[Ulum, Miftachul]]>;
<![CDATA[Rosidah, Afira Ainur]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.21938
<![CDATA[Corrosion is one of the main problems causing damage to metals. The occurrence of a reaction with the surrounding environment accompanied by several factors cause deterioration so that corrosion causes damage to the material. Therefore, researchers added inhibitors as a way to control corrosion. This study used paracetamol as an inhibitor against corrosion protection of AISI 1020 steel with 3% NaCl as the media. The method used for the corrosion test was the weight loss and toughness test using the Charpy method of impact testing. This study obtained the lowest corrosion rate value at the addition of 220 ppm inhibitor concentration with immersion time for 7 days of 1.078 mpy. The efficiency observed in this study showed that adding an inhibitor concentration of 220 ppm with the immersion time of 7 days had the highest value reaching 71.42%. Moreover, the impact test results got the highest value on the 220 ppm inhibitor variation with the immersion time of 7 days, reaching 0.0817 J/]]>
<![CDATA[STUDY OF THE NEWTON RAPHSON METHOD IN ANALYZING THE DEPTH OF FLUID FLOW IN THE WASTEWATER CANAL U RPS TKRO SMKN 1 CIRUAS USING THE MATLAB APPLICATION ]]>
<![CDATA[Susilo, R Dwi Pudji]]>;
<![CDATA[Tarigan, Kontan]]>;
<![CDATA[Sudarma, Andi Firdaus]]>;
<![CDATA[Oktaviani, Ana Nur]]>;
<![CDATA[Khaerudini, Deni Shidqi]]>;
<![CDATA[Fitri, Muhamad]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.27624
<![CDATA[Abstract--Flow Depth can be defined as channel height or open channel flow depth, is an important parameter in hydraulic calculations and analysis. The depth of flow in the U channel (U channel) of the Student Practice Room (RPS) for Automotive Light Vehicle Engineering (TKRO) at SMKN 1 Ciruas often causes delayed flow congestion and full channels. Sometimes it is dry if only a few students carry out practical use of room practice and use of water and other waste. The aim of this research is to find a solution to this problem, namely by knowing the depth of flow in the channel so that in the future when designing waste water drainage channels it can be designed appropriately and in accordance with the volume of waste released. The method is to calculate the flow depth in the U channel using NEWTON RAPHSON numerical analysis and the Matlab application to determine the flow depth. The calculation result is the depth of water flow in channel U, with water flow discharge Q = 0.016 m3/s, Manning coefficient for roughness of channel walls and base n = 0.025, slope of channel bottom I = 0.003, and width of channel U B = 0.22 m, at The 11th and 12th iterations flow depth = 0.194864 m. The results of manual exact calculations in the 11th and 12th iterations, the error percentage is 0%, meaning that the flow depth is uniform at a water level of 0.194864 m. Calculations using the Matlab application obtained graphs and the iteration steps were slightly different in the 12th and 13th iterations, the flow depth results were the same = 0.194864 m. The initial guess at flow depth(h)=1, the percentage error is 25%, the uniform flow depth of the RPS TKRO SMKN 1 Ciruas U channel is 0.194864 m.Keywords : Depth of flow, NEWTON RAPHSON, Open Channel, U Channel, MATLAB]]>
<![CDATA[STRENGTH ANALYSIS OF STEEL ROPE ON FREIGHT ELEVATOR WITH A HOIST LIFTING CAPACITY OF 3 TONS ]]>
<![CDATA[Risdiyan, Asep]]>;
<![CDATA[Haftirman, Haftirman]]>;
<![CDATA[Arwati, I Gusti Ayu]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.19053
<![CDATA[Steel rope has advantages over chains, but also has disadvantages. The advantage is that it is resistant to shock loads, if it breaks it shows a brittle sign on one of the wires (Houda Mouradi, 2018). The drawbacks are that they are not resistant to corrosion, are difficult to bend, can stretch or elongate, and tend to rotate (Aginaparru, 2018). In this study the analysis carried out was the process for the Salt Spray test to determine the effect of the corrosion rate on steel rope and the tensile test process aimed at determining the phase transformation, plasticity, creep, fatigue, to the fatigue point, as well as metallographic tests for changes in the properties mechanic. Loss or loss of weight on steel rope type 6 x Fi (29), diameter 13 from the salt spray test process, increased the corrosion rate from 0.21 mpy to 0.23 mpy. The greater the tensile force, the greater the tensile stress that occurs. And the greater the tensile force, the greater the elastic modulus that occurs from the elastic limit to the fatigue limit due to the magnitude of the tensile force that exceeds the limit. In metallographic testing using the ASTM 317 / ASTM E 407 method, it can be concluded that the steel rope has a modulus of elasticity, visible crack lines in the steel rope structure indicating that the steel rope has undergone an elastic process to the fatigue limit or fracture limit. Keywords: Salt Spray, wire, creep, fatigue ]]>
<![CDATA[Two-stage Anaerobic Reactor Design of SS 316 Material with Application of Penetrant Test Method (NDT) ]]>
<![CDATA[Gea, Markus]]>;
<![CDATA[Khaerudini, Deni Shidqi]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.27069
<![CDATA[Abstract-- Anaerobic reactors are essential in processing organic waste, biomass, and wastewater into desired end products through a dark fermentation process. This process involves bacteria decomposing organic matter without light or oxygen, producing hydrogen gas, and other by-products. In this study, the design, manufacture, and testing of a two-stage anaerobic reactor of stainless steel 316 material were carried out carefully, considering dimensions, and material specifications. The device design process involved design simulation using SolidWorks, while the manufacturing stage involved material preparation, component forming, welding, and device installation. Testing was conducted using Nondestructive testing (NDT) methods to detect surface defects, and ensure the structural integrity of the reactor. This study provides an in-depth overview of the manufacturing process of a two-stage anaerobic reactor, including material preparation, welding, and NDT testing, hoping to contribute to developing more effective, and sustainable organic waste treatment technologies.]]>
<![CDATA[Candlenut Oil as Base Oil for Bio Lubricants Experiment to Improve of Low Temperature Properties with Additive Pourpoint Depressant (PPD) ]]>
<![CDATA[Raflan, Raflan]]>;
<![CDATA[Soekardi, Chandrasah]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i2.22179
<![CDATA[This study investigated Candlenut oil has the potential to become a bio-lubricant, replacing the dependence on mineral oil and edible feedstocks, if use of edible vegetable oils for bio-lubricant production is difficult owing to the demand for food, which has increased sharply. The low temperature flow property of vegetable oils is extremely poor, and this limits their use at low operating temperatures especially as automotive and industrial fluids, adding additive PPD have been adopted to improve the properties of vegetable oils. Sample preparation method is carried out by stirring Candlenut oil and PPD additives on magnetic steering for 60 minutes. There were 6 samples with different mass concentrations of PPD additives made from 0 to 0.05 % PPD (w/w). Viscosity Kinematic & Pourpoint testing was carried out on each sample, the findings showed that the impact of mixing PPD additives caused the Viscosity Kinematic value to increase gradually by ±0.022 mm2/s and from testing the pourpoint value of the optimum additive mass concentration of 0.03 % PPD (w/w) with a pourpoint value of -37 ° C, this showed that the concentration of % PPD (w/w) was not directly proportional to the pourpoint value of Candlenut oil.]]>
