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
316 Documents
ANALISIS PENGARUH NILAI KALORI BATUBARA TERHADAP EFISIENSI BOILER CFB DAN KONSUMSI BAHAN BAKAR UNIT 1 PLTU MERAK ENERGI INDONESIA
Ariyanto, Andi Erwan;
Soekardi, Chandrasa
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 12, No 3 (2023)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v12i3.15892
Sebagai objek studi untuk tugas akhir/skripsi ini adalah mempelajari karakteristik performance PLTU yang beroperasi menggunakan bahan bakar batubara. PLTU tersebut dioperasikan oleh sebuah perusahaan swasta PT MEI di Cilegon Banten. Permasalahan yang dihadapi oleh PLTU tersebut adalah karakteristik batubara yang dipergunakannya tidak selalu sama pada periode pengoperasiannya sehingga nilai kalorinya berubah-ubah. Hal tersebut memberikan pengaruh terhadap kinerja Boiler secara khusus, dan terhadap performance PLTU secara keseluruhan. Dalam pengoperasiannya dipergunakan 3 jenis nilai kalori batubara, yaitu 3567 Kcal/Kg, 3750 Kcal/Kg dan 4086 Kcal/Kg. Penelitian ini bertujuan untuk mengetahui pengaruh nilai kalori pada batubara terhadap efisiensi boiler CFB, nilai gross plant heat rate (GPHR), net plant heat rate (NPHR) dan specific fuel consumption (SFC) pada unit 1 PLTU PT MEI. Perhitungan efisiensi dilakukan dengan metode heatloss atau kerugian panas. Penelitian ini menghasilkan efisiensi boiler yang berbeda-beda. Nilai efisiensi boiler tertinggi adalah 82.54 % dengan kalori batubara 3823 kcal/kg. Konsumsi bahan bakar spesifik, NPHR dan GPHR juga dipengaruhi oleh nilai kalori. Dimana masing-masing nilainya yaitu GPHR 2794.6 kcal/kwh, NPHR 3175 kcal/kwh dan SFC nya adalah 0.73 kg/kwh.Kata Kunci : kalori batubara, efisiensi boiler, gross plant heat rate, net plant heat rate, specific fuel consumption.
ANALISIS EFISIENSI PROSES PRODUKSI PADA MESIN METAL SHEET PRINT TIPE MS2 DALAM PRODUKSI KEMASAN KALENG DENGAN METODE TPM DAN SMED
Amanu, Yusuf Nur
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 12, No 3 (2023)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v12i3.15930
Abstrak -- Mesin metal sheet print type MS2 memiliki peran besar dalam proses pembuatan kaleng, yaitu dalam proses printed sheet. Pada bulan Januari 2022 diperoleh bahwa nilai OEE sebesar 39,76% dimana nilai Avaibility rate nya 47,49%, Performance rate senilai 84,91% dan nilai Quality rate 98.68%. Sedangkan nilai kerugian terbesar dihitung dengan six big losses terjadi pada avaibility losses yakni dengan total losses sebesar 50% yang terdiri dari breakdown losses (BL) 14% dan setup and adjusment losses (SAL) 36%. Berdasarkan diketahui nya losees pada setup and adjusment losses (SAL) saat change over C/O, start up dan downtime mesin maka dilakukan penerapan metode SMED untuk menurunkan nilai downtime yang terjadi pada mesin saat startup. Dan metode TPM digunakan untuk menaikan nilai avaibility dan quality, hasilnya mampu meningkatkan avaibility rate sebesar 4.41% dengan mengurangi waktu Changeover (C/O) sebesar 45 menit sehingga menghasilkan nilai rata-rata OEE menjadi 43.12% Abstract-- The MS2 type sheet metal print machine has a big role in the process of making cans, namely in the printed sheet process. In January 2022, it was found that the OEE value was 39.76% where the Avaibility rate value was 47.49%, the Performance rate was 84.91% and the Quality rate was 98.68%. Meanwhile, the largest loss value is calculated using six big losses, which occur in availability losses, namely with a total loss of 50% consisting of breakdown losses (BL) 14% and setup and adjustment losses (SAL) 36%. Based on the known losses in setup and adjustment losses (SAL) during change over C/O, start up and engine downtime, the SMED method is applied to reduce the downtime value that occurs on the engine at startup. And the TPM method is used to increase the value of availability and quality, the result was able to increase the availability rate by 4.41% by reducing the Changeover time (C/O) by 45 minutes so that the average OEE value became 43.12%.
PENGARUH KEKASARAN PERMUKAAN DAN KETEBALAN BONDLINE ADHESIVE TERHADAP KEKUATAN BONDING DARI RING SEAL PADA GEARSHAFT CFM56-7B
Maqi, Mochammad;
Hidayat, Imam
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 12, No 3 (2023)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v12i3.16709
Dalam proses operasinya mesin CFM-56-7B, ring seal yang terpasang pada gearshaft Transfer Gearbox (TGB) sering mengalami terkelupas sehingga rusak dan mengakibatkan sering terjadi kebocoran. Pada TGB terdapat adhesive bonding sebagai perekat antara ring seal dan gearshaft yang berfungsi untuk menahan oli agar tidak bocor. Dengan terjadinya kebocoran oli akan mempengaruhi sistem lubrikasi pada bearing di Transfer Gearbox (TGB). Salah satu aspek peningkatan kekuatan adhesive bonding tergantung pada dua faktor yaitu kekasaran permukaan dan ketebalan bondline adhesive. Tugas Akhir (TA) ini menganalisis bagaimana kekasaran permukaan dengan proses grit blasting dan ketebalan bondline mempengaruhi kinerja adhesive bonding. Metode yang digunakan pada penelitian ini yaitu eksperimental yang bertujuan untuk mendapatkan kekuatan adhesive bonding yang optimum. Parameter untuk yang dievaluasi dari analisis ini yaitu kekuatan bonding dan tegangan maksimum adhesive tersebut yang dibuat variasi ukuran abrasive 20 dan 36 dan tiga ketebalan bondline 1 mm. 2 mm, 3 mm. Dari pengujian yang telah dilakukan, didapat hasil bahwa kekuatan adhesive bondingmeningkat seiring dengan meningkatnya kekasaran permukaan dan berkurangnya ketebalan adhesive. Nilai rata-rata optimum uji kekasaran didapat pada ukuran abrasive 20 sebesar 318,217 µin. Dan nilai optimum nilai tegangan geser didapat pada ketebalan adhesive bondline 1 mm sebesar 9,7471 MPa.
ANALISIS LAJU KOROSI BAJA KARBON MATERIAL 20G DAN A210 A1
Rajendra, Fajar Cahyadi;
Feriyanto, Dafit
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 12, No 3 (2023)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v12i3.14884
Kualitas kimia feedwater pada siklus air dan uap tertutup harus dijaga sedemikian rupa sesuai standar yang telah ditetapkan untuk menjaga keandalan operasi pembangkit. Kebocoran pipa kondensor merupakan salah satu penyebab terjadinya kontaminasi air laut pada feedwater. Penelitian ini bertujuan untuk mengetahui nilai laju korosi terhadap lingkungan NaCl 3,5 % dan mengetahui bentuk struktur mikro material 20 G dan A210 A1. Penelitian dilakukan dengan menggunakan pengujian korosi polarisasi potensiodinamik pada rentang potensial -1000 mV s.d. 1000 mV dengan scan rate 5 mV/s, pengujian scanning electron microscope dan pengujian metalografi. Hasil pengujian korosi menunjukkan nilai laju korosi pada larutan NaCl 3,5 % material 20G sebesar 0,00018328 mmpy dan material A210 A1 sebesar 0,00011301 mmpy. Ketahanan korosi material A210 A1 lebih baik dari material 20G karena memiliki kandungan kromium (Cr) sebesar 0,0408% dan nikel (Ni) sebesar 0,0271%. Hasil penelitian ini menunjukkan bahwa material A210 A1 lebih baik dari 20G dalam ketahanan terhadap korosi
ANALISIS KEMURNIAN OKSIGEN PADA SISTEM PRESSURE SWING ADSORPTION (PSA) DENGAN PENAMBAHAN MASSA MATERIAL ADSORBENT ZEOLIT 13X (600,700 Dan 800 Gram
Safaat, Mukhtar;
Khaerudini, Deni Shidqi
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 12, No 3 (2023)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v12i3.14276
Polusi udara menyebabkan masalah pernapasan akut dan kronis yang menjadi perhatian yang berkembang baik dari tingkat global maupun individu. Akibatnya, ada kebutuhan yang berkembang untuk mengatasi kesehatan dan kualitas hidup melalui konsentrator oksigen yang ringan dan portabel dengan pasokan oksigen kelas medis konsentrasi oksigen 88-92%. Penelitian ini bertujuan untuk memilih zeolit yang dapat digunakan untuk menghasilkan gas oksigen dan mengetahui kemurnian oksigen yang dihasilkan pada sitem pressure swing adsoption (PSA) pada setiap variasi massa adsorbent zeolit 13x yang digunakan., Penelitian dilakukan dengan tahapan percobaan pada sistem pressure swing adsorption (PSA) dengan uji adsorpsi menggunakan variasi massa material adsorbent zeolit 13x 600,700 dan 800 gram. Berdasarkan hasil penelitian yang telah dilakukan pada sistem eksperimen pressure swing adsorption (PSA) untuk aplikasi oxygen concentrator dapat di simpulkan bahwa dari pengujian variasi massa adsorbent zeolite molecular sieve (ZMS) 13X yang dilakukan pada sistem pressure swing adsorption (PSA) untuk oxygen concentrator untuk pencapaian kemurnian oksigen paling baik berada pada kondisi 2 dengan nilai maksimal 81.5%.
ANALISIS PENGARUH SUMBU RODA TERHADAP RADIUS BELOK PADA MOTOR LISTRIK E-NIAGA GENI BIRU 3 RODA
Aditya, Roiy;
Golwa, Gian Villany
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 12, No 3 (2023)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v12i3.16098
Motor listrik E-niaga geni biru merupakan kendaraan roda 3 yang menggunakan energi listrik, di setiap roda memiliki jarak sumbu yang dapat mempengaruhi terhadap kestabilan kendaraan pada saat posisi belok yang dapat menyebabkan slip pada roda sehingga mengalami perilaku understeer atau oversteer. Radius belok adalah jarak belok minimum yang dapat diperlukan oleh kendaraan. Untuk mengetahui radius belok pada motor listrik E-niaga geni biru peneliti melakukan analisis dengan menggunakan metode perbandingan pengukuran secara teoritis dan pemodelan pada software AutoCAD. Gaya vertikal, gaya sentrifugal dan gaya lateral merupakan gaya – gaya yang terjadi pada ban untuk mengetahui sudut slip. Hasil perhitungan teoritis dan pemodelan Software AutoCAD memiliki hasil yang sama didapatkan radius belok 2,93 m dengan radius maksimal 3,71 m dan radius minimal 2,11 m. Pada kecepatan 30 km/jam, 35 km/jam dan 40 km/jam sudut slip roda belakang lebih besar dari pada roda depan. Hal ini disebabkan karena roda belakang bernilai negatif atau berlawanan dengan gaya vertikal pada roda depan, sehingga terjadi pengurangan gaya vertikal pada roda belakang. index understeer (Kus) menunjukkan pada kecepatan 30 km/jam, 35 km/jam dan 40 km/jam mengalami perilaku belok oversteer karena mempunyai nilai negatif yaitu -3,36, -4,9 dan -5,37. Nilai negatif disebabkan karena sudut slip roda belakang lebih besar daripada roda depan.
Design and Development of Flow Loss Testing Device in Pipe Installation Using VDI 2221 Method
Ardian, Rifky Dwi;
Fitri, Muhamad
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 14, No 1 (2025)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v14i1.19066
Piping installation is a medium for fluid transfer which has many design variations. The design used can affect the flow rate of the fluid. The effect comes from head losses which are divided into major losses and minor losses. Basically, major losses are losses caused by straight pipes while minor losses are losses due to pipe components. These components can be in the form of bends, connections, branching and changes in cross-sectional size. Losses that occur in pipe flow can be studied by direct simulation. To carry out a direct simulation, a test tool is needed that can help analyze losses that occur in fluid flow in pipe installations. The design that is carried out refers to the use of pipe installations that are often encountered including its components. The system design of the flow loss test equipment is selected using the VDI 2221 method. The selection of components is carried out by comparing the variations in the arrangement of system components. From the results of this comparison, the best variation was obtained with the results of the main PVC pipe, 108 bit Shimizu jet pump, ball valve type, pressure gauge capacity of 2.5 bar, flowmeter capacity of 1.5 m3/h, rotameter capacity of 2-20 GPM/10- 70 LPM. The tool has been completed built and tested so it is feasible to use.
DESAIN DAN ANALISIS VELG CAST WHEEL TIPE MT DAN WM DENGAN VARIASI SPOKE MENGGUNAKAN MATERIAL ALUMUNIUM ALLOY TIPE 7050-T7651 DAN 7075-T6 (SN)
Sobirin, Muhammad;
P.N, Ardhi Fathonisyam;
Bahri, Mokh. Hairul
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 14, No 1 (2025)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v14i1.15139
The automotive industry is growing rapidly. Produce changes, especially in the level of Safety and comfort. Vehicle manufacturers are competing to improve the quality of the components used in these vehicles. One aspect of Safety and comfort is the Safety and comfort of the vehicle's wheels, in addition to an attractive wheel design. Therefore, the material used on the wheels is high-quality, with precise calculations and correct designs. Vehicle wheels are one of the main components in vehicles because vehicles without wheels cannot run. There are two kinds of wheels: spoke wheels (spoke wheels) and cast wheels. This study aims to determine how to design cast wheel wheels type MT and WM and analyze material comparison and the number of spokes based on simulation using the software. The simulation results show the design of the MT-type cast wheel: the maximum stress value on the 7050-T7651 aluminum alloy material is 426.784 MPa, and on the 7075-T6 (SN) aluminum alloy material, which is 426.784 MPa, it is still within the safe limit because it is still below the value yield strength. In the design of the WM-type cast wheel, the maximum stress value on aluminum alloy type 7050-T7651 is 362085 MPa. On aluminum alloy material type 7075-T6 (SN), which is 362,085 MPa, it is still within safe limits because it is still below the yield strength value. The maximum strain value for the two materials used is 3.987 x 100-6, and the maximum displacement value for both materials is 9.959 x 100-4. The highest factor of safety value on WM 5 spoke wheels with aluminum alloy type 7050 –T7651 is 1.76
Design and Construction of a Pineapple Skin Cutting Machine with a Pneumatic Actuator Drive Powered by a Solar Module with a Capacity of 200 WP
Arizona, Rafil;
Kurniadi, Shandy
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 14, No 1 (2025)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v14i1.25515
The main objective of this research is to carried out the design of a pineapple cutting machine with a pneumatic actuator powered by a solar module with a capacity of 200 WP. The research methods used are literature study and experimental laboratory. The laboratory experimental method is very suitable to be applied to post-harvest agricultural machines with a small capacity where the research is only focused on the success of the actuator system in carrying out pineapple cutting movements automatically by utilizing pressurized air coming from the compressor. The variation in air pressure for the pneumatic actuator is set at the air pressure, namely 3, 4, and 5 Bar. The actual peeling capacity using air pressure of 3 Bar resulted in 160 pineapple cutting/per hour, 170 fruit/per hour for 4 Bar, 173 bar for 5 bar, and 173 fruit/per hour manually.
Analysis of Variation in Fiber Volume Fraction on Torsional Strength of Epoxy and Polyester Matrix Coconut Fiber Composites
Pangestu, Rendy
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 14, No 1 (2025)
Publisher : Universitas Mercu Buana
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DOI: 10.22441/jtm.v14i1.20828
Natural fibers can be employed to enhance the strength and rigidity of composite structures. These fibers can be combined with matrix materials to create composite materials. One specific example of a natural fiber is coconut fiber. Unfortunately, coconut fiber is currently underutilized, leading to organic waste. However, coconut fiber offers several advantages as a substitute for automotive product composites despite facing specific technical challenges. Hence, it is important to understand the potential of coconut fiber composites with epoxy and polyester matrices. This study aimed to assess the capabilities of coconut fiber composites with epoxy and polyester matrices through a torsion test. The study involved conducting torsion tests on composites with varying volume fractions, precisely 25:75, 30:70, 35:65, and 40:60 (coconut fiber fraction to polyester/epoxy fraction). The research entailed creating torsion test specimens and performing the torsion tests. Subsequently, an analysis of the torsion test results was conducted. This research indicates that coconut fiber with an epoxy matrix demonstrated a maximum stress value of 31.27 MPa and a maximum shear strain value of 1.022 rad at a 30% volume fraction. Similarly, coconut fiber composite with a polyester matrix exhibited a maximum stress value of 27.83 MPa and a maximum shear strain value of 0.91 at a 30% volume fraction. Based on these outcomes, it can be concluded that the optimal volume fraction of coconut fiber for producing satisfactory specimens is 30%, regardless of whether the composites have epoxy or polyester matrices.