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SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin
Published by Universitas Muhammadiyah Jakarta
ISSN : 20889038     EISSN : 25499645     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin is an open access, peer-review journal which publishes original and review articles that advance the understanding of both the fundamentals of engineering science and its application to the solution of challenges and problems in mechanical engineering systems, machines and components. The editorial team aims to publish high quality and highly applied research and innovation that has the potential to be widely disseminated, taking into consideration the potential mechanical engineering that it could generate.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 269 Documents
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TENSILE BEHAVIOR OF SINGLE ELBOW ASSEMBLY WITH RIVETS ORIENTATION ON JUTE/EPOXY COMPOSITE I.G.L, Aditya Pradnyana; I.G.K, Dwijana; I.D.G, Ary Subagia
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 2 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.2.81-87

Abstract

This experiment's purpose is to investigate the tension strength of the elbow joint with the variation of rivets position. The Joining was made based on jute woven fabric reinforced composite epoxy. The vacuum-assisted resin transfer molding process was employed to manufacture composites. In this joint two rivets were used in three orientations of positions such as diagonal (D), Vertical (V), and horizontal (H). In order to investigate the properties of a sample, the tensile loading was carried out. Then, the failure of samples based on the photographic method has analyzed. The test result shows that the tensile strength of joints with D orientation has the highest value compared with rivets on orientation V and H are 3.329 MPa, 2.946 MPa, dan 2.737 MPa, respectively. Additionally, the shear stress value of each rivets orientation on tangential states have D = 59.49 N/mm2, V = 47.46 N/mm2, and H = 45.35 N/mm2, respectively. It can be concluded that the rivet state orientation becomes an important factor for the tension strength of the tangential joint of the composites.
ANALYSIS OF BOILER MACHINERY MAINTENANCE USING OEE (OVERALL EQUIPMENT EFFECTIVENESS ) METHOD IN TAHU ASIN SINAR BANDUNG FACTORY Gusniar, Iwan Nugraha; Sandy, Rio
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 2 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.2.112-117

Abstract

The boiler engine is one of the strategies in increasing the efficiency of energy use, especially in the process of making tofu, the boiler works as a chemical (potential) energy conversion engine from fuel to heat energy in the form of steam by heating the fuel for that the boiler may always operate with optimal performance , The purpose of this study is to determine the effectiveness of the boiler machine during production, the effectiveness values include availability, performance rate and quality rate, the data analysis method is carried out with the overall method of equipment effectiveness using weekly data, after doing research, the availability value is 89.7%, The value of the performance rate is 87.9%, the engine quality rate shows a result of 99.9%, and the results of the calculation of Overall Equipment Effectiveness are 78.51%, it can be concluded that this value has not reached the standard or in other words the boiler engine needs to be reworked time management good production from wa time of machine operating availability (availability) as well as boiler engine performance from production (Performance rate) to increase the value of Overall Equipment Effectiveness.
THE MACHINE OIL DRAINER DESIGN IN SMALL MEDIUM-SIZE ENTERPRISES (SMEs) OF FOOD PROCESSING OF CASSAVA CHIPS IN CIAMIS DISTRICT Riyaldi, Slamet; Setiawan, Tia
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 2 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.2.88-94

Abstract

Machine technology is currently playing an important part in supporting small and medium-sized enterprises (SMEs)' growth and continuity. Oil filtration in cassava chips that are fried in SMEs is also a concern as chips which are not durable, moldy, and poorly smelling. A machine oil drainer is therefore required to prevent this so that SMEs can compete internationally according to the target. Further to the above, the researcher would recommend the design of the oil drainer used by SMEs in the production of cassavas chips. The design uses a case study by SMEs. In addition, to find out productivity level, the comparison before and after the use of an oil drainer is measured at the beginning and the end of the study. A case study technique with the chosen sample, namely the processing of cassava chips in the Ciamis Regency, is the analysis tool used. As for the data source, it is obtained by data collection techniques using questionnaires, interviews, observation, and documentation exploration through primary and secondary data collection. It is understood from the outcomes of the above discussion that the Machine Oil Drainer plays a role in reducing the oil content of cassava chips, where it can work and operate efficiently. If it can make food durable, mold-free, and smell rancid with the System Oil Drainer, the consistency and efficiency of cassava chips are thus growing. The Research output is in the form of a Machine Oil Drainer that can assist in the filtering process to minimize the oil content of cassava chips in Ciamis Regency cassava chips SMEs.
EFFECT OF NUMBER OF TRANSITION METAL CATALYST CELLS MANGANESE CATALYTIC CONVERTER ON EXHAUST BASIS EMISSION OUTPUT CARBON MONOXIDE MOTOR GASOLINE Irawan, RM. Bagus; Pujianto, Edi; Amin, Moh; Subri, Moh
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 2 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.2.118-122

Abstract

The technology used to reduce air pollution is using a Catalytic Converter which is installed on the exhaust gas channel (muffler) of gasoline motorized vehicles. This Catalytic Converter serves to accelerate the oxidation of Hydrocarbon (HC) and Carbon Monoxide (CO) emissions, as well as to reduce Nitrogen Oxide (NOx). In this study it was designed in such a way on a laboratory scale by studying the manganese transition metal material as a supporting copper catalyst, to see the ability of the catalyst to reduce carbon monoxide exhaust emissions. This study aims first to examine the ability of the manganese transition metal catalyst as a support for copper (CuMn) and secondly to examine the effect of increasing the number of catalyst cells on exhaust emission output. The first research results obtained were that the Manganese Transition metal catalyst as a supporting Copper (CuMn) was able to reduce the output of Carbon Monoxide exhaust emissions. Second, the addition of the number of catalyst cells on the Copper (Cu) catalyst did not have a significant effect, while the addition of the number of catalyst cells on the Manganese Transition metal catalyst as a support for Copper, from 5 catalysts to 10 catalysts, was able to reduce the output of Carbon Monoxide exhaust gas more significantly. However, in the number of 15 catalyst cells, the reduction in exhaust emissions was not significant.
UNJUK KERJA MESIN PENCACAH PELEPAH KELAPA SAWIT DENGAN SISTEM ROTARY Arriyani, Yang Fitri; Idiar, Idiar; Subkhan, Subkhan; Krishnaningsih, Shanty Dwi
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 2 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.2.130-135

Abstract

Pemanfaatan limbah pelepah sawit dapat diolah sebagai pakan ternak, kompos, pembuatan briket, dan bahan dasar panel komposit. Pemanfaatan limbah pelepah kelapa sawit untuk berbagai tujuan tersebut diproses dengan cara mencacahnya menjadi cacahan berukuran kecil. Proses pencacahan dengan menggunakan mesin pencacah memberikan kemudahan bagi petani dan mempercepat waktu pencacahan. Beberapa penelitian telah dilakukan pada proses pencacahan pelepah daun kelapa sawit  dengan menggunakan motor penggerak yang berbeda-beda dan berbagai model pisau potong, daya motor, serta kecepatan putaran motor yang bervariasi dengan tujuan untuk mendapatkan kapasitas efektif mesin yang optimal. Metode perancangan yang digunakan dalam pembuatan mesin adalah metode Pahl dan Beitz, yaitu perencanaan, perancangan konsep produk, perancangan bentuk, dan perancangan detail. Parameter yang diamati dan diukur pada mesin adalah kapasitas efektif mesin, rendemen cacahan, dan ukuran panjang hasil cacahan. Uji coba dilakukan sebanyak tiga kali pengulangan dengan mencacah pelepah yang ditimbang masing-masing seberat 5 kg. Hasil uji coba terhadap mesin pencacah pelepah kelapa sawit sistem rotary menunjukkan bahwa kapasitas efektif mesin rata-rata adalah sebesar 244,06 kg/jam sehingga termasuk dalam katergori kelas A. Rendemen cacahan rata-rata pada mesin adalah sebesar 97 % dan ukuran rata-rata cacahan ≤ 50 mm adalah sebesar 89,5 % dan telah memenuhi syarat SNI 7580: 2010.
KARAKTERISTIK KEKUATAN TARIK DAN BENDING KOMPOSIT HYBRID SERAT DAN LIDI KELAPA Dosoputranto, Eddi; Musanif, Imran; Bawano, Franklin; Sumolang, Errol
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 2 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.2.136-142

Abstract

Pemanfaatan dan eksploitasi serat alam sebagai penguat pada material komposit terus dikembangkan dengan tujuan untuk mereduksi penggunaan serat sintetis yang berdampak pada masalah lingkungan. Penelitian ini bertujuan untuk mengkaji secara eksperimen potensi serat dan lidi kelapa untuk pembuatan material komposit hibrid sebagai salah satu material komposit berbasis serat alam yang memiliki kinerja untuk aplikasi industri furnitur. Metode yang digunakan adalah pembuatan komposit hibrid dengan menvariasikan volume serat dan lidi dengan matrik resin polyester. Sedangkan pengujian sifat mekanis secara berturt-turut mengacu pada standar pengujian ASTM D 638 dan ASTM D 790 untuk pengujian kekuatan tarik dan kekuatan bending. Hasil yang diperoleh menunjukan bahwa sifat kekuatan tarik dan bending paling optimal terjadi pada komposisi fraksi volume  serat 50 %. Secara keseluruhan bahwa lidi kepala sebagai bahan penguat pada komposit hibrid belum memberikan penguatan berarti yang dikarenakan masih terdapat lapisan keras yang mengitari pada permukaan lidi walaupun telah dilakukan perlakuan alkali.
EFFECT OF NICKEL ELECTROPLATING TIME ON CORRUGATED METAL GASKETS PERFORMANCE Ahbar, Isa Ibnu; Nurhadiyanto, Didik
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 2 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.2.123-129

Abstract

Metal gaskets is an alternative to asbestor gaskets, but it still have many weaknesses. The main focus of this research is to find the optimal electroplating time to prevent leakage.This research was started with forming the gasket material, and then followed by coating process. The methode that used in coating proses was electroplating with nickel solution. The gasket material used SUS 304 sheet with 1,5mm of thickness. Water pressure test was used to test leackage with 2 MPa, 4 MPa, 6 MPa, and 8 MPa presurre for 5 minute test duration. The result this research are  (1) electroplating are effected by time, the longer time applied more nickel attached to the gasket, (2) the best performance on nickel electroplated gasket was on 32 minute and 45 second plating time, (3) electroplated nickel gasket performance was better than the original to prevent leakage from 2 to 8 MPa water pressure.
Simulasi kontur distribusi suhu dan kecepatan fluida pada heat exchanger type shell and tube aliran dua stage sistem counter flow dengan computational fluid dynamics (cfd) Achmad Ramadhan Muzaki; Fajar Anggara
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.16.1.6-13

Abstract

The simulation of temperature and velocity distribution contours is designed to produce output regarding the capability and reliability of the shell and tube heat exchanger system, as input in the framework of assessing system development and optimization of operating results. This research was conducted numerically with a variation of hot fluid input flow of 0.8 kg / second and a cold fluid input flow of 1 kg / second and variations in hot inlet temperatures: 60 ° C, 90 ° C, 120 ° C, cold temperature inlet variations: 15 ° C, 16 ° C, 18 ° C using the Computational Fluid Dynamics (CFD) method on the ANSYS software. In this study, the design contours of the temperature and velocity of the outlet of hot fluid and outlet of cold fluid can be determined with the following variation results: the contour of the temperature distribution of hot fluid is seen on the lowest part of the wall which has a blue color and the highest has a red color, while the cold fluid shows a temperature. the lowest is dark blue and the highest temperature is light blue. The velocity distribution contours of hot and cold fluids can be seen on the lowest part of the wall which has a blue color and the highest has a yellow green color.
Uji performa hybrid turbin angin savonius-darrieus eggbeater Delffika Canra; Rachmatullah Rachmatullah
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.16.1.41-45

Abstract

The development of the Vertical Axis Wind Turbine (VAWT) is still a challenge for several researchers in the world and in Indonesia. Due to the potential of the Indonesian coast generally has an average wind speed of 3-7 m / s which is classified as low wind speed and is very suitable for VAWT which operates at low wind speeds. Combining the 2 existing VAWT types is one of the development efforts on VAWT to improve the performance of these wind turbines. Hybrid VAWT Savonius-Darrieus can increase the coefficient of performance (Cp) where the maximum Cp of savonius is 30% while Darriues is 35%. There have been several researchers making the Savonius-Darrieus Hybrid VAWT prototype producing Cp above 35%, but this is still far from the ideal Cp of wind turbines around 59%. The combination variation of 2 types of VAWT still has the opportunity to be investigated with various variations in construction and variations in additional accessories. The research method that will be carried out is the prototype experimental method, with the design and prototyping stages. The prototype was tested at the Mechanical Engineering Laboratory of the Indramayu State Polytechnic by blowing the wind at a certain speed from the wind tunnel that had been prepared in advance. There were 11 samples prepared, namely 4 samples for 3 levels and 7 samples for 4 levels. There were 5 samples that reached a Cp value of 0.58 which was close to the ideal Cp value, but there was no increase in TSR in all samples.
A comparative study of strength and hardness of two motorcycle spoke wheels Muhammad Arif Khaidir; Fadelan Fadelan; Rizal Arifin
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.16.1.14-17

Abstract

The wheels are a vital component for safety in driving as well as supporting the vertical load of the vehicle when the vehicle is rotating or at rest and serves as a continuation of the rotary motion of the engine to move from one place to another. These wheels are used in a motorcycle made from ironand aluminum alloys material.We perform the tensile and hardness test to obtain their strength and hardness value. We found from our measurement that the maximum tensile stress for the aluminium and iron velg are 155.08 MPa and 277.62 MPa, respectively. The values are directly proportional with the hardness of those material, in which the hardness of iron velg is much higher than that one of aluminium velg by 521.8 VHN.

Page 21 of 27 | Total Record : 269

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