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INDONESIA
Jurnal Konversi Energi dan Manufaktur
Published by Universitas Negeri Jakarta
ISSN : 23392029     EISSN : 26225565     DOI : https://doi.org/10.21009/JKEM
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
This journal aims as a medium for lecturers, researchers and practitioners to discuss result of their research in the field of mechanical engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 175 Documents
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ANALISIS TEGANGAN EKUIVALEN FENDER BENTUK SETENGAH PIPA DAN BENTUK PELAT H PADA KAPAL MENGGUNAKAN METODE ELEMEN HINGGA: Analysis of Equivalent Stress on Half-Pipe and H-Plate Shaped Fenders on Ships using Finite Element Method Firmansyah , Ainun; Priyambodo Nur Ardi Nugroho; Wulandari, Dyah Arum
Jurnal Konversi Energi dan Manufaktur Vol. 8 No. 2 (2023)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.8.2.1

Abstract

Fenders are structures installed on the edges of ships to protect the ship's hull from impact with the dock. The main function of fenders is to absorb the collision energy generated by the ship's impact during berthing at a dock. The load applied to fenders on each ship results in stress distribution in the surrounding hull area, which can lead to various issues such as damage, cracks, deformations, and others. Additionally, the presence of fenders with different shapes can affect the stress distribution values in the surrounding hull area. Hence, a local stress analysis using finite element method software is necessary. The analysis focuses on static loads originating from the ship itself when docked at a port. However, only the fender section is analyzed, and it is not necessary to consider the entire ship's body. The objective of the analysis is to determine the stress characteristics and maximum stress values in the fender itself. The analysis results reveal that the highest stress value occurs in the half-pipe-shaped fender with a value of 0.22809 MPa. Based on these findings, it can be concluded that the stress values in the fender meet the allowable standards. In conclusion, this analysis provides an understanding of stress and the maximum stress value in ship fenders. This knowledge is crucial to ensure that fenders effectively fulfill their function of protecting the ship from impacts with docks.
DESAIN SISTEM MONITORING FLOWMETER KOMUNIKASI RS 232 MENGGUNAKAN SOFTWARE NODE-RED PADA FUEL CELL ELECTRIC VEHICLE: Design of RS 232 Communication Flowmeter Monitoring System using Node-Red Software for Fuel Cell Electric Vehicle Yulianti, Dinda; Ifa Fauziah; Hamid Abdillah; Kurniawan; Irma Yulianti
Jurnal Konversi Energi dan Manufaktur Vol. 8 No. 2 (2023)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.8.2.5

Abstract

One of the applications of fuel cells is Fuel Cell Electric Vehicles (FCEV). FCEV is more efficient and produces no carbon emissions than conventional internal combustion engine vehicles. FCEV emitting only water vapor and warm air. This research hoped will provide new knowledge regarding the monitoring system for hydrogen output in FCEVs using the Node-RED software application, as well as regarding flowmeters with RS 232 output. The design of this serial flowmeter monitoring system was carried out in the fuel cell laboratory, the Energy Conversion and Conservation Research Center (PRKKE). This research was carried out by direct observation of the laboratory where fuel cell electric cars were studied, and collected data directly in the laboratory. The Node-RED flow design begins by providing a timestamp every 10 seconds when FCEV is operated, debugging to determine how the results of trials and failures occur. When FCEV is operated, a tenth of a second of data from the flowmeter enters the Moxa Nport device server. This monitoring design combines the Moxa NPort 5230 device server, battery supply, flowmeter with RS232 communication, and several electronic circuits. The flowmeter testing experiment for hydrogen output data on Fuel Cell Electric Vehicles obtained 1.38 with a speed of 1.46 l/min.
ANALISIS DESIGN CHASSIS ALAT ANGKUT BUAH SAWIT KAPASITAS 500 KG DENGAN METODE ELEMEN HINGGA: Chassis Design Analysis of Oil Palm Fruit Transportation Equipment Capacity 500 kg using Finite Element Method Slamet Yuniadi; Iwan Kurniawan
Jurnal Konversi Energi dan Manufaktur Vol. 8 No. 2 (2023)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.8.2.2

Abstract

Currently, the area of oil palm plantations in Indonesia is increasing. However, the condition of oil palm plantations generally has very minimal infrastructure. Therefore, a means of transporting palm fruit is needed that can move in plantation areas that have minimal infrastructure and have the ability to turn with a small turning radius. Chassis is the most important component in every vehicle. Chassis is a component used to support the load, vehicle body, engine, and driver. The development of technology in the field of engineering requires the chassis design of a vehicle to be light but strong. Therefore, this study aims to analyze the strength and safety factor of the chassis using the Finite Element Method. The software used in this analysis is SolidWorks 2018. By doing this analysis, the safety factors in the chassis design will be known. In this design, the magnitude of the factor of safety must be more than two. 3D modeling and material data are required to run the simulation of strength and factor of safety analysis. The material that will be used in the design of this chassis is ASTM A36 steel. From this research, it is expected that the chassis can withstand a maximum load of 500 kg and a maximum driver of 100 kg. From this research, it is expected that the chassis can withstand a maximum load of 500 kg and a maximum driver of 100 kg. From the simulation results using the SolidWorks 2018 software, it can be seen that the safety factor results when accelerating are 3, braking are 3.4 and when turning are 4.2. So it can be concluded that the chassis design is certainly safe.
ANALISIS LAJU KEAUSAN BRAKE PAD TERHADAP DISC BRAKE KERETA LISTRIK LRV SERI 1100 : Analysis of Brake Pad Wear Rate on Disc Brake Electric Train LRV 1100 Series Bahrul Ilmi Darmawan; Iwan Kurniawan
Jurnal Konversi Energi dan Manufaktur Vol. 8 No. 2 (2023)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.8.2.4

Abstract

The brake pad is a critical component in the LRV braking system. Based on maintenance data on the LRV Series 1100 shows that there is a decrease in the thickness of the brake pad. The braking system on the LRV has two types of braking, which are regenerative braking and pneumatic braking. Regenerative braking is a braking system that works by utilizing kinetic energy in motor traction. Pneumatic braking is a braking system that works by utilizing compressed air which moves the calipers and is forwarded to the brake pads to grip the disc brakes. The purpose of this study is to determine the wear rate of the brake pads so that the prediction of the service life of the brake pads is known and to find out the factors causing the differences in the wear rates of the brake pads attached to the bogie trailer and the bogie motor. The method used in this study is linear regression, by processing maintenance data and collecting data in the field so that the factors that influence the wear rate and differences in the rate of wear on the brake pads are obtained. After analyzing the data, the brake pad on the McA bogie brake pad can be achieved in November 2039 with a thickness of 8.06 mm, the McB bogie in June 2042 with a thickness of 8.03 mm, on the trailer bogie in November 2029 with a thickness of 8.12 mm. The braking force between the brake pad and disk brake on the McA and McB bogies was 98.26 kgf, the braking friction that occurred had an impact on the wear rate of the McA and McB bogie brake pads which was 1.11 x 10-6 mm3/Nm. Whereas in the bogie trailer, the braking force between the brake pad and disk brake is 25.24 kgf, the braking friction that occurs affects the brake pad wear rate of 10.01 x 10-6 mm3/Nm. The factors that affect the difference in wear rate are the regenerative braking function and the pneumatic braking itself, on bogies McA and McB brake pads work at speeds of 15 km/h to 0 km/h, while on bogie trailers from a maximum operating speed of 60km/h to 0 km /j uses the pneumatic braking function.
PERBANDINGAN PENGGUNAAN SINGLE INJECTOR DAN DOUBLE INJECTOR TERHADAP TORSI DAN DAYA PADA SEPEDA MOTOR EFI DENGAN KAPASITAS MESIN 110 CC MENGGUNAKAN BAHAN BAKAR PERTAMAX : Comparison of Using Single and Double Injector to Torque and Power on EFI Motorcycle with 110 cc Engine Capacity using Pertamax Fuel Darwin Rio Budi Syaka; Sopiyan; Alfian Dwi Prayogo
Jurnal Konversi Energi dan Manufaktur Vol. 8 No. 2 (2023)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.8.2.6

Abstract

Pertamax has the advantage of the pertatec compound protecting the engine from rust. In Pertamax fuel with an octane rating of 92 it works optimally and the rest of the combustion results. Meanwhile, an engine with a lower octane rating has the impact of burning fuel that explodes and has a risk of misalignment causing knocking symptoms. This research includes comparative research with experimental methods. The test results for a single injector (12 holes) have increased compared to a double injector (12 holes). 10.86 and on the double injector (12 holes) which is 12.25 so that the acceleration on the single injector is better than the double injector, the single injector (12 holes) which is 30.15 Kph/s and the double injector (12 holes) which is 29.37 Kph/s, resulting in greater torque and power values, namely single injector (12 holes) of 9.71 Nm and power of 10.19 HP and double injectors (12 holes) of 9.7 Nm and power of 8. 97 HP with the greatest speed obtained single injector (12 holes) 103.91 Km/h and Double injectors (12 holes) 103.68 Km/h. So that a single injector with 12 holes is better used on 110 cc vehicles seen from the aspect of the Dynotest.
PENGARUH TEMPERATUR DAN TEKANAN TERHADAP HASIL CETAKAN POLYPROPYLENE MENGGUNAKAN MESIN INJECTION MOLDING VERTIKAL: The Influence of Temperature and Pressure on the Results of Polypropylene Molding Using a Vertical injection Molding Machine Sugiyanto, Didik; Chan, Yefri; Taopik, Angga
Jurnal Konversi Energi dan Manufaktur Vol. 8 No. 2 (2023)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.8.2.7

Abstract

Currently, the use of plastic products is increasing in various fields, due to their flexibility and low production costs. The injection molding process is a technique that is often used in the formation of plastic products. The focus of the problem of this study is the effect of heating temperature and hydraulic pressure on the results of box and gear molds using the injection molding process. The test method uses variations in temperature and hydraulic pressure to produce the maximum mold shape in the box and gear. From the results of the injection molding test for full yield gear products with a melt temperature of 368ºC, a mold temperature of 40ºC, and an injection pressure of 490 Psi, there was a failure in the test results due to the release of liquid which did not come out directly to fill the mold, because the pressure from the hydraulic jack must gradually.
DESAIN RAK TEMPAT PENYIMPANAN TABUNG GAS ARGON DENGAN KAPASITAS MAKSIMUM 3 TON: Design of the Argon Gas Storage Rack with a Maximum Load Capacity of 3 Tons Basori; Marsudi; Aldi Hari Tri Sakti Ridwan
Jurnal Konversi Energi dan Manufaktur Vol. 8 No. 2 (2023)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.8.2.8

Abstract

Gas tungsten arc welding (GTAW) uses argon gas as a protective gas in the welding process. Argon gas cylinders weigh 100 kg, making it difficult to mobilize in large quantities when the welding work is at a certain height. Therefore it is necessary to create a storage area that is able to accommodate and withstand the load of gas cylinders and their contents and can be mobilized at a certain height. In order to get a suitable storage area, a design has been carried out, which includes calculating the strength of the frame, determining the material and design of the lifting lug, and calculating the welding connection of the lifting lug and hollow steel. The rack material used is SS400 type, the compressive stress that occurs due to the force acting on the hollow iron is 91.124 MPa and the stress received by the base plate is 127.5 MPa, while the allowable compressive stress for the material is 152 MPa. The load received by the lifting lug is 33,866.6 N, and the tensile stress due to the force acting on the lifting lug is 76.88 MPa, while the allowable tensile stress is 152 MPa, so the lifting lug is declared safe to use.
COVER AND PREFACE JURNAL KONVERSI ENERGI DAN MANUFAKTUR VOL. 8 NO. 2 (2023) Jurnal Konversi Energi dan Manufaktur Editor's
Jurnal Konversi Energi dan Manufaktur Vol. 8 No. 2 (2023)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Firmansyah et al., in their paper, conducted local stress analysis using finite element-based software. The study is carried out on the static load that comes from the ship when it is anchored at the harbour. This analysis aims to determine the fender's stress characteristics and maximum stress value. Yuniadi and Kurniawan, in their paper, analyzed the strength and safety factor of the chassis using the finite element method to determine the safety factor in the chassis design that was made. Darmawan and Kurniawan, in their paper, determine the wear rate of the brake pad so that the prediction of the service life of the brake pad is known and the factors causing the difference in the wear rate of the brake pad installed on the trailer bogies and motor bogies. Yulianti et al., in their paper, discuss the hydrogen output monitoring system on Fuel Cell Electric Vehicles (FCEV) using the Node-RED software application and regarding flowmeters with RS 232 output. Syaka et al., in their paper, add injectors that aim to improve fuel delivery fuel at high speed, which is expected to boost the power and torque of the standard vehicle. The vehicle used is a motorcycle with a programmed fuel injection (PGM-FI) system for the fuel atomizer. Sugiyanto et al., in their paper, varied the heating temperature and hydraulic pressure on the box and gear moulds using an injection moulding process to produce the maximum mould shape for the box and gear shapes. Basori et al., in their paper, designed a storage rack capable of accommodating and holding a load of gas cylinders and their contents and can be mobilized at a certain height.
SIMULASI ALIRAN FLUIDA PADA INSTALASI GASIFIKASI TIPE DOWNDRAFT: Fluid Flow Simulation in Downdraft Type Gasification Installation Wijianto, Agus; Alfitrah, Fajar
Jurnal Konversi Energi dan Manufaktur Vol. 9 No. 1 (2024)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.9.1.6

Abstract

The development of energy is very important to maintain oil reserves and also substitute for fossil fuels. Agricultural waste can be used as an alternative raw material to assist in the depletion of petroleum reserves and increase the use value of agricultural waste. Gasification is a process that converts energy into syngas that can be used for fuel. Fluid flow simulation research in the downdraft was conducted to determine the effect of the heat distribution or temperature on the gasification equipment installation and the effect of the cooling water mass flow rate on the airflow out of the reactor. Numerical study method using computational fluid dynamic solidworks flow simulation software. The fixed variables in the simulation are inlet air velocity 1.27, 1.36, and 1.49 m/s where this figure is obtained from an experiment to test the characterization of the downdraft actual the simulation in the reactor shows the temperature of the combustion reactor is 800-850ºC to be 400-450ºC at the reactor output. The simulation on the heat exchanger is carried out to reduce the air temperature to the temperature operating engine. The heat exchanger uses water fluid with a mass flow rate of 0.05 kg/s. The best simulation is obtained at the variation of air velocity 1.27 m/s and temperature reactor 900ºC where the output temperature is 92.11ºC. Doing a new experiment on gasification, then doing a simulation first, will make the gasification work easier.
INOVASI DESAIN KUNCI PAS MENGGUNAKAN CATIA V5R20 DENGAN PENDEKATAN ANTROPOMETRI (STUDI KASUS PADA PT. KARYA BAHANA UNIGAM DIVISI PEMELIHARAAN MESIN): Design Innovation of Wrench using Catia V5R20 with Anthropometric Approach (Case Study on PT. Karya Bahana Unigam Machinery Maintenance Division) Medikano, Alsen; Anissa Aprilya; Azisah , Nur Aini
Jurnal Konversi Energi dan Manufaktur Vol. 9 No. 1 (2024)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.9.1.3

Abstract

Since the occurrence of the Covid-19 pandemic in early 2020 in Indonesia, it has been necessary to maintain the body's immunity so that it remains stable so that the body is not easily exposed to the virus. For that, PT Karya Bahana Unigam needs to do something that can facilitate the maintenance of press machines by innovating on wrenches as a tool to simplify the machine maintenance process. The innovation that was carried out on this spanner started with distributing questionnaires to machine maintenance operators at PT Karya Bahana Unigam with the aim of knowing the needs of users and knowing the technical characteristics of these innovative products. After making the House of Quality (HOQ), anthropometric calculations are carried out to determine the dimensions of the Wrench innovation product to be made. The results of anthropometric calculations show that the spanner product length is 32.2 cm, the spanner innovation product width is 5 cm, and the spanner product width is 1.34 cm. The design was made using CATIA V5R20 software with a 3-dimensional design form, and drafting was also carried out to find out the design from various views. The folding wrench design consists of 3 components, namely a size 17 spanner, a size 13 spanner, and a pin as a key hinge.

Page 14 of 18 | Total Record : 175

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