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.
Articles
326 Documents
<![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[ANALISIS PERHITUNGAN BEBAN PENDINGINAN PADA RUANG LOCKER HANGAR 3 PT. GMF AEROASIA DENGAN METODE CLTD ]]>
<![CDATA[Muhammad, Firhan Adji]]>;
<![CDATA[Ruhyat, Nanang]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i1.16689
<![CDATA[Proses pendinginan pada ruang Locker Hangar 3 mempunyai fungsi yang penting dalam menjaga temperatur ruangan agar tetap sejuk. Dengan pendinginan yang optimal, para karyawan yang beristirahat didalam ruangan akan merasa nyaman. Penulis melakukan analisis terhadap kondisi ruang Locker Hangar 3 dengan metode penelitian yang digunakan adalah dengan cara mengambil data lapangan serta melakukan analisis perhitungan terhadap data tersebut mengunakan rumus rumus yang didapat dari bahan bahan literatur. Setelah dilakukan penelitian dan analisis perhitungan, maka didapat nilai total beban thermal ruangan sebesar 5383.63 Watt, Temperatur tertinggi ruang Locker sebesar 28,20C, nilai kelembaban relative tertinggi pada ruang Locker sebesar 69%. Hasil dari penelitian ini menunjukan bahwa kapasitas mesin pendingin diruang Locker belum mampu menunjang kebutuhan beban pendingin sehingga harus ditambah 1 buah mesin pendingin dengan kapasitas 1.5PK. mesin pendingin yang ada sebelumnya direkoemendasikan untuk diganti dari ke tipe Low-Watt dengan peluang efisiensi efisiensi 19,28% dengan tingkat penghematan Rp2.033.024 per Tahun. dari segi penerangan, Lampu Ruang Locker direkomendasikan untuk dilakukan penggantian menggunakan lampu Tube LED dengan kapasitas 24 Watt. peluang penghematan yang dihasilkan 33.33 % lebih ekonomis dari lampu yang telah terpasang, dengan efisiensi yang dihasilkan adalah sebesar Rp.2.226.097 per tahun. Hasil perhitungan Indeks Konsumsi Energi di ruang Locker adalah sebesar 17,05 kWh/m2 termasuk dalam katagori efisen.]]>
<![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[ANALISIS KELEMBAPAN UDARA TERHADAP TERJADINYA POROSITAS PADA SAMBUNGAN LAS SMAW MATERIAL BAJA A 106 GRADE B MENGGUNAKAN METODE RADIOGRAPHY DAN LIQUID PENETRAN TEST ]]>
<![CDATA[Rofiqie, Ahmad]]>;
<![CDATA[Fitri, Muhamad]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i1.22326
<![CDATA[Ada banyak metode pengelasan yang biasa digunakan dalam dunia konstruksi dan industri saat ini. Salah satu yang banyak digunakan saat ini yaitu, metode pengelasan busur nyala logam terlindung atau disebut juga Shield Metal Arc Welding (SMAW). Penelitian ini menggunakan material pipa ASTM A 106 grade B yang akan disambungkan dengan proses pengelasan SMAW yang mana (Root Pass dan Hot Pass) dengan pengaturan mesin las 80-90 A dan 11 Volt dimana kecepatan pengelasan sekitar 9 mm/menit. Untuk proses pengelasan (Filler Pass dan Capping Pass) dengan pengaturan mesin las 90-100 A dan 24 V. Pada proses pengelasan banyak faktor yang menyebabkan cacat porositas, salah satunya yaitu kelembapan udara. Metode untuk menginspeksi hasil menggunakan 2 metode, yaitu NDT (Non Destructive Test) Liquid penetrant test dan radiography test, yang hasilnya akan ditentukan berdasarkan acceptance criteria berdasarkan standar ASME. Tujuan dari penelitian ini adalah menentukan spesimen uji tersebut bisa diterima berdasarkan acceptance criteria ASME. Hasil pengujian menunjukkan adanya discontinuity berupa adanya porosity dan cluster porosity pada permukaan ditengah pengelasan, hasil pengelasan pada joint 1 terdapat porosity 1 mm dan cluster porosity lebar 29 mm dan pada joint 2 terdapat porosity 1,5 mm dan cluster porosity lebar 35 mm sehingga berdasarkan acceptance criteria standar ASME dinyatakan hasil pengelasan tersebut dilakukan perbaikan. Kata Kunci: Pengelasan, Kelembapan Udara, Porositas, Shield Metal Arc Welding, Liquid Penetrant Test, Radiography Test.]]>
<![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.]]>
<![CDATA[Pembebanan Statis terhadap Rangka Mesin Alat Pengaduk untuk Adonan Donat menggunakan Sofware FEA ]]>
<![CDATA[Suryady, Sandy]]>;
<![CDATA[Sapto, Agung Dwi]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i1.17689
<![CDATA[Kemajuan ilmu pengetahuan dan teknologi untuk menunjang proses produksi skala besar agar proses adonan tersebut dilakukan analisa pada rangka mesin, sehingga dapat mempercepat produksi donat dalam skala besar untuk mempercepat produksi donat. Penelitian ini untuk Analisa design rangka alat pengaduk adonan donat menggunakan software FEA. Analisis beban statis pada rangka Alat Pengaduk adonan donat menggunakan software FEA. Material Galvanize steel yang mempunyai nilai yield stress 203 MPa, sedangkan perhitungan software didapat von mises 54,136 MPa dan perhitungan manual 69,864 MPa. Sedangkan material stainless steel memiliki nilai yield strength 332 MPa, dengan nilai von mises 95,656 MPa dan perhitungan manual 172,339 MPa. Hasil dari analisis rangka Alat Pengaduk Adonan donat dengan perhitungan teori mendapatkan angka dari hasil von misses 54,136MPa, displacement 0,17 mm yang menggunakan material galvanis steel. Sedangkan untuk material stainless steel besar nilai displacement sebesar 1,3 mm untuk hasil simulasi dan 2,4 untuk perhitungan manual. Safety factor yang didapat pada analisis dengan menggunakan software FEA dan perhitungan teoritis bahwa rangka Alat Pengaduk Adonan donat menggunakan material Galvanize steel dan mendapatkan nilai Safety Factor 2,12 dengan perhitungan manual dan 2,81 yang dihitung menggunakan simulasi software. Sedangkan untuk material stainless steel sebesar 1.8 yang dihitung secara manual dan 2,81 yang dihitung menggunakan software.]]>
<![CDATA[NUMERICAL INVESTIGATION HEAT TRANSFER OF ROTARY DRYER OLIVE LEAF DRYING USING COMPUTATIONAL FLUID DYNAMICS METHOD ]]>
<![CDATA[carles, Henry carles]]>;
<![CDATA[Ramadhan, Daris Fajar]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 3 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i3.30121
<![CDATA[The conventional drying process for olive leaves is done in the sun. The drying capacity is relatively small over a long period. This process can be improved by using a rotary dryer. To determine optimal drying conditions in the temperature range of 30-45 [ºC], it is necessary to carry out numerical analysis using the Computational fluid dynamics method with varying heating temperatures of 30, 40, 50, and 60 [ºC]. The total heat energy transferred from the heater to the olive leaves by convection is 366,252 [kJ/s] and 21,371 [kJ/s] by conduction with a rotary dryer rotation speed of 75 [rpm]. The drying temperatures resulting from these four variations are 25.65, 26.85, 29.55, and 31.35 [ºC] with a heat flux of 2.542 x 10-6 [W/m2]. The heating temperature of the rotary dryer set at 60 [ºC] can distribute the heat of 1.8 [M.J.], resulting in an optimal olive leaf drying temperature of 31.35 [ºC].]]>
<![CDATA[STATISTICAL ANALYSIS OF FUEL CONSUMPTION IN HATCHBACK CARS IN INDONESIA FOR THE YEAR 2024 USING MATLAB ]]>
<![CDATA[Ginting, Ph.D, Dianta]]>;
<![CDATA[Sukendar, Sukendar]]>;
<![CDATA[Hasanudin, Abdul]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 3 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i3.28138
<![CDATA[Due to their affordability and compact size, the annual rise in fuel prices has prompted Indonesian consumers to opt for more fuel-efficient vehicles, particularly hatchback models. This study analyzes the key factors influencing fuel consumption in hatchback cars produced in 2024 in Indonesia using statistical analysis with MATLAB. The data analyzed includes technical specifications from various popular hatchback models in the Indonesian market, such as vehicle weight, torque, engine capacity, and engine technology. The analysis results show that vehicle weight has a moderate positive correlation (r = 0.25) with fuel consumption, meaning heavier cars use more fuel than lighter vehicles. In contrast, engine capacity and torque show weak negative correlations with fuel consumption, with correlation values of -0.13 and -0.18, respectively, suggesting that while these factors influence performance, their effect on fuel efficiency is relatively minimal. The findings highlight the critical importance of vehicle weight reduction as a key strategy for improving overall fuel efficiency. Furthermore, this study provides essential insights for consumers to select vehicles that offer a better fuel economy. It also offers valuable guidance for manufacturers looking to design more fuel-efficient and environmentally friendly cars. The potential for vehicle weight reduction to become a primary focus for increasing fuel efficiency in hatchback cars is especially emphasized, offering hope for a more sustainable automotive market in Indonesia]]>
<![CDATA[THE EFFECT OF USING AN EXTRA FAN ON CHANGES IN TEMPERATURE, VOLTAGE AND ELECTROLYTE SPECIFIC GRAVITY OF LEAD ACID BATTERIES IN ELECTRIC PALLET MOVERS ]]>
<![CDATA[Sugianto, Rizaldy Adha]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 3 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i3.18343
<![CDATA[Batteries are one of the vital components that are the main source of energy in electric forklifts which of course must be considered, especially their performance in issuing voltage and density of electrolyte which can be influenced by other factors such as temperature. The design of the battery itself tends to be closed so that it has very minimal air circulation which makes the hot temperature trapped and affects the performance of the battery itself. For these problems, an analysis of the addition of an extra fan on the battery cover was carried out to determine the extent of the extra fan's influence on battery performance (temperature, voltage, and electrolyte density) with a lead acid on the electric pallet mover. SPSS (Statistical Package for the Social Science) is used as a research method which is expected to produce data that shows how much influence the addition of an extra fan has on the battery performance of the electric pallet mover. The results of this study show that the addition of an extra fan to the pallet mover battery cover provides a significant change in the temperature, voltage, and density of the battery electrolyte. When the level of the extra fan is in the off state (none) compared to the level of the extra fan in the high speed state (6500 RPM) in the temperature test, the results show that the average change is 10.93oC. Then when the level of the extra fan is in the off state (none) compared to the level of the extra fan in the high speed state (6500 RPM) in the Voltage test, the results show that the average change is 0.6 volts. Meanwhile, when the extra fan level is in the off state (none) compared to the extra fan level in the high speed state (6500 RPM) in the Density test, the results show that the average change is 0.22.]]>
<![CDATA[EFFECT ANALYSIS OF ROTATIONAL SPEED CHANGES ON PROPELLER TURBINES ON THE POTENTIAL FOR CAVITATION FORMATION USING COMPUTATIONAL FLUID DYNAMIC METHOD (CFD) ]]>
<![CDATA[Widodo, Aditya Putra]]>;
<![CDATA[Khaerudini, Deni Shidqi]]>
<![CDATA[ Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 3 (2024) ]]>
Publisher : <![CDATA[Universitas Mercu Buana ]]>
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DOI: 10.22441/jtm.v13i3.18667
<![CDATA[Water is an inexhaustible resource. In Indonesia there are several areas that have the potential of water energy for electricity production. Water energy can be used for electricity production and supports emission reduction programs because it does not produce CO2 emissions during the electricity production process by water turbines. One of the problems experienced by turbines is damage caused by cavitation. Cavitation itself is the formation of air gas bubbles due to very low pressure reaching below the vapor pressure, so that water evaporates at low pressure. This research was conducted to determine the effect of rotational speed on the potential for cavitation. This research was conducted using the CFD method and using the ANSYS application. In the simulation process, several variables are used, namely rotational speed and fluid velocity. The conclusion of this study is that the higher the rotating speed of a propeller turbine, the higher the cavitation potential that will occur in the propeller turbine. Because the higher the rotational speed of a turbine,so the lower the pressure that occurs in the turbine, this is in accordance with Bernoulli's Law. Suggestions for further research can be done with several modifications or variations of the winglet radius so as to get a better design. In addition, in future research it is also possible to modify the angle of the blade so as to reduce the emergence or formation of gas bubbles on the propeller blades due to decreased pressure.]]>
