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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 9 Documents
 1 
Search results for , issue "Vol. 7 No. 2 (2022)" : 9 Documents clear
ANALISIS POWER YANG DIPERLUKAN PADA RANCANG BANGUN ALAT BANTU SENAI PORTABEL Eko Arif Syaefudin; Aam Amaningsih Jumhur; Dyah Arum Wulandari; Wardoyo; Muhammad Alfian Dwi Putra Putra
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.7.2.2

Abstract

Machines as tools in human work are currently the main needs that need to be in the goods and service industry. The machine as a tool based on its use is divided into 2 types, namely permanent/static and mobility/portable. Permanent machines are more widely used in the industrial world, while portable machines are more for repair services, which require various locations that are sometimes difficult to reach, and the application position can operate properly, and save time, energy, operational costs, and can be used anywhere. The weakness of portable machines lies in the power used because the power source uses mostly batteries. For this reason, further research is needed to obtain an analysis of the appropriate power requirements in the field. The steps taken in this study used experimental research methods to obtain results relevant to the power used according to the design needs of the tool. Control and power design analysis uses components such as DC electric motors, switches, adapters, and infrared sensors. From the results of the analysis of the control and power design calculations, the results obtained in the calculation of the electric motor power of 114 W (general power used in portable drilling machines) and the calculation of torque of 6.5 Nm the capacity in making external threads using this tool is capable of a maximum diameter of M6 with ST41 material.
ANALISIS KINERJA ALAT ANGKUT FORKLIF DENGAN MENGGUNAKAN METODE OVERALL EFFECTIVENESS EQUIPMENT (OEE) Yuyun Yuniar Rohmatin; Rossi S. Wahyuni
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.7.2.1

Abstract

Material handling becomes an important activity in handling material, first a loading material in the company until unloading material, company X use forklift for material handling in production operation. Overall effectiveness Equipment (OEE) is one method used for measuring the performance of equipment in industries by considering availability, performance, and rate of quality of used equipment. This research purpose was to analyze the performance of forklifts using the OEE method. Based on the results of the study, it is known that during the 6 months of forklift damage varies with the longest breakdown time in June reaching 360 minutes or equivalent to 6 hours. The average value of forklift availability for 6 months period is 97.85% where the operating time is 6000 minutes or equivalent to 20 hours per month. The average value of forklift performance is 97.60% with the number of pianos being transported an average of 1152 units per month. The average value of forklift availability for 6 months is 97.85% where the operating time is 6000 minutes or equivalent to 20 hours per month. The average value of forklift performance is 97.60% with the number of pianos being transported on average per month being 1152 units. The average value of the rate of quality forklift is 98.71% with the number of piano products transported being 1152 units per month, while the number of defective products that fail to be transported only reaches 14.67 or equivalent to 15 products per month. The overall effectiveness method of equipment is obtained at 98.14% where according to Nakajima (1988) the chairman of the Japanese maintenance institute (JIPM) sets the ideal limit of the OEE value index for world-class companies that have implemented TPM, which is 85% and the value of the company's forklift performance is above the standard value. which is set at 98.14%.
RANCANG BANGUN PERANGKAT PENDUKUNG UNTUK PROSES PEMOTONGAN DENGAN PLASMA CUTTING Ferry Budhi Susetyo; Ilhamullah; Calfin Aldo Maidi Frima; Anggi Kusuma; Ahmad Lubi
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.7.2.5

Abstract

Material cutting can use a tool commonly called plasma cutting. In general, the plasma cutting used today is still using your own hands or manually, and is not equipped with driving support equipment. This results in the performance of plasma cutting when cutting is not maximized because the movement is relatively not constant. For this reason, it will be designed, manufactured, and tested for cutting support equipment with a rectifier rail system for plasma cutting. In the process of making this supporting equipment, it also uses a threaded rod so that it can move forward and backward by using an electric motor. The design of supporting equipment for the cutting process begins with the creation of a plasma cutting design. Then design the mechanical and electrical components. Then calculate the plasma cutting torque moving forward and backward. Then proceed with the process of making the device and finally testing it. The trial step begins with turning on the compressor, and plasma inverter and preparing steel measuring 4, 6, and 10 mm. Once ready, then proceed with the process of cutting the material and cleaning the material. The results of the cut were then observed visually. The results obtained, that this plasma cutting support equipment can operate properly. The plasma cutting support equipment can cut steel plates with a thickness of 4, 6, and 10 mm very well.
KAJI EKSPERIMEN MESIN KOMPRESI UDARA DENGAN MEMODIFIKASI GIGI SENTRIS MOTOR BENSIN 4-TAK SEBAGAI SOLUSI ALTERNATIF KENDARAAN BERMOTOR BEBAS EMISI Darwin Rio Budi Syaka; Triyono; Mohammad Joko Triyanto
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.7.2.3

Abstract

The compressed air engine is an environmentally friendly alternative with the advantages of zero emissions and a fast-charging process making it suitable for application as the main power source in vehicles. Previous research on compressed air power engines that modify the internal combustion engine was carried out by changing the shape of the camshaft. This is complicated, so another solution is to change the gear-centric ratio. However, research on centric gear modification is still not available. Therefore, this study aims to determine the performance of a compressed air engine with centric gear modification. This research presents an experimental study of a piston engine driven by compressed air where the test equipment is a 4-stroke internal combustion engine which is converted to a 2-stroke by modifying the centric gear ratio from 2:1 to 1:1. The torque produced by the engine is measured using a prony brake where variations in a brake pressure range from 0.4 bar to 2 bar with a change in brake pressure every 0.2. The variations in air pressure between 3 bar - 9 bar with a change in air pressure of 1 bar. The resulting engine speed is measured using a tachometer. The results of this study indicate that air pressure is the main factor affecting the performance of a compressed air engine, the greater the pressure of the compressed air, the greater the power generated. The best performance of the compressed air engine is at the highest air pressure experiment, which is 8 bar by producing 2.36 kW of power at 724.33 rpm engine speed with 31.09 Nm of torque, but the highest torque that can be obtained is 34.55 Nm at 618.67 rpm.
PEMANFAATAN PANAS BUANG DARI KENDARAAN BERTENAGA DIESEL UNTUK MENJALANKAN SISTEM REFRIGERASI ABSORPSI: SEBUAH TINJAUAN Dyah Arum Wulandari; Nasywa Raihan Dhiyaulhaq
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.7.2.7

Abstract

In Indonesia, refrigeration using Vapour Absorption Refrigeration System or absorption refrigeration system is still uncommon to be used in vehicles. This system is not like a vapor compression refrigeration system that uses electricity to run the compressor. Instead of it uses heat in the generator. The use of an absorption refrigeration system is considered to apply to vehicles that produce heat from the engine. This review article discusses the use of exhaust heat from several modes of transportation to cool the cabin or product through conceptual research by reviewing relevant literature. The results of this study indicate that a diesel-powered engine can generate sufficient heat to power the cooling system.
PELAPISAN TEMBAGA NIKEL PADA BAJA DAN PENGARUHNYA TERHADAP LAJU KOROSI Syamsuir
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.7.2.4

Abstract

The study was conducted to determine the effect of Cu-Ni coating on the corrosion rate of low carbon steel Ms 7210. The first stage of the study was Cu plating on the surface of the test sample with variations in coating holding times of 5, 10, 15, 20, and 25 minutes. The second stage is nickel plating for 10 minutes. The results showed that there was a decrease in the corrosion rate up to 0.36 mmpy when coating for 25 minutes. When compared with the raw material corrosion rate of 7.6 mmpy, the corrosion rate of steel after being coated is much lower. The longer the holding time of the coating, the thicker the layer formed, and the harder the surface that occurs, but it has an impact on decreasing the corrosion rate in the corrosive medium of 3.5% NaCl solution.
PENGARUH KUAT ARUS PENGELASAN GMAW TERHADAP KEDALAMAN PENETRASI DAN KEKERASAN BAJA ST-37 PADA DAERAH HEAT AFFECTED ZONE Agus Fikri; Kurniawan Setiyadi; Mohammad Mujirudin
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.7.2.6

Abstract

The selection of proper current is closely related to the depth of penetration of welds on metal and will affect the mechanical properties of the resulting welded joints. The purpose of this study was to determine the effect of current on penetration depth, welding width, and hardness in the Heat Affected Zone (HAZ). The research method used is experimental with currents of 180 A, 200 A, and 220 A. Welding is done on ST-37 steel using the GMAW welding technique. Penetration depth for components 1 and 2 with a current of 180 A are 0.77 mm and 0.78 mm, respectively, at a current of 200 A are 1.29 mm and 1.06 mm, and in 220 A are 1 .52 mm and 1.44 mm. The resulting welding width for 180 A is 5.86 mm, at 200 A is 6.70 mm, and at 220 A is 7.35 mm. Meanwhile, the hardness of the HAZ area shows that at a current of 180 A the hardness is 122 HV, while for a current of 200 A and 220 A the hardness is 120.5 HV. The quality standard of welded joints at each current indicates that the resulting penetration depth is more than 20%, so it can be said that the welding process has met the minimum standards.
ANALISIS KEKUATAN POROS DAN RODA BERSIRIP PADA ALAT PENANAM PADI PORTABEL MELALUI PENDEKATAN SIMULASI Ahmad Hartono; Ragil Sukarno; I Wayan Sugita
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.7.2.8

Abstract

Farmers need automatic rice planting tools to increase crop yields. Currently, automatic planting tools are already on the market, but the price is relatively high, so an alternative automatic rice planter tool is needed that has a more affordable price. One of the very important components in an automatic rice planter is the shaft and wheels, so in this study focused on these two components. This study aimed to determine the strength of the shaft and finned wheels on the planter in the jajar legowo system through a simulation approach. This research method uses a simulation approach using Autodesk Inventor software which is applied to the components of the shaft and the wheel of the rice planter. The research begins with making a 3D model design, determining the shaft and wheel materials, meshing, determining boundary conditions, determining the loading position, and then running a voltage analysis simulation. The shaft material used is JIS G4501 Grade S45C steel, while the material for the wheels is JIS G3101 Grade S400 steel. The simulation results showed that the maximum von mises stress was 54.90 MPa, the maximum displacement was 0.113 mm, and the minimum safety factor value of 3.8. These results show that the shaft and wheel design on the rice planter has met the safe limit and can be continued in the manufacturing process stage.
COVER AND PREFACE JURNAL KONVERSI ENERGI DAN MANUFAKTUR VOL. 7 NO. 2 (2022) Jurnal Konversi Energi dan Manufaktur Editor's
Jurnal Konversi Energi dan Manufaktur Vol. 7 No. 2 (2022)
Publisher : Universitas Negeri Jakarta

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

Abstract

Rohmatin et al., in their paper, discuss forklift performance analysis, where this paper aims to find out whether forklift performance is still within the standards set by using the overall equipment effectiveness (OEE) method. Syaefudin et al., in their paper, analyze the calculation of the control and power design of portable Senai tools to get the appropriate power requirements in the field. Syaka et al., in their paper, conducted an experimental study of the performance of an air compression engine with modified centric gear on 4-stroke internal combustion, which was changed to 2-stroke by modifying the centric gear ratio from 2:1 to 1:1. Syamsuir, in their paper, carried out the electroplating process of copper and nickel to know the effect of the layer formed on Ms 7210 low carbon steel on the corrosion rate. Susetyo et al., in their paper, discuss the design and testing of cutting support devices with a rectifier rail system for plasma cutting operations. Fikri et al., in their paper, conducted research in the field of welding to know the effect of current strength on penetration depth, welding width, and hardness in the heat-affected zone (HAZ) of ST-37 steel. Wulandari and Dhiyaulhaq, in their paper, reviewed articles with a discussion on the use of exhaust heat from several transportation methods to cool cabins or products through conceptual research by reviewing related literature. Hartono et al., in their paper, designed a rice planter using the jajar legowo system, which has an optimal axle and finned wheel design.

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