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Jurnal Energi Dan Manufaktur
Published by Universitas Udayana
ISSN : 23025255     EISSN : 25415328     DOI : -
Core Subject : Science, Engineering,
Energy Industrial & Manufacturing Engineering
"Jurnal Energi dan Manufaktur" is a journal published by Department of Mechanical Engineering, University of Udayana, Bali since 2006. During 2006-2011 the journal's name was "Jurnal Ilmiah Teknik Mesin CAKRAM" (Scientific journal in mechanical engineering, CAKRAM). "Jurnal Energi dan Manufaktur" is released biannually on April and October, respectively. We invite authors to submit papers from experimental research, review work, analytical-theoretical study, applied study, and simulation, in related to mechanical engineering (energy, material, manufacturing, design) to be published through "Jurnal Energi dan Manufaktur".
Arjuna Subject : -
Articles 7 Documents
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Search results for , issue "Vol 14 No 1 (2021)" : 7 Documents clear
Rancang Bangun Die Set sebagai Alat Bantu Press Tool untuk Proses V-Bending Stainless Steel Rusdi Nur; Muhammad Arsyad Suyuti; Muhammad Iswar
Jurnal Energi Dan Manufaktur Vol 14 No 1 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2021.v14.i01.p04

Abstract

Press tools, as production aids, are widely used in the manufacturing industry for metal forming, including the bending of plate materials. The press tool consists of a die set used to cut or shape a product or component from sheet metal by using a press machine as a pressing tool that can produce products with uniform quality and in a short time. The stages in the die set design process consist of several stages, namely: 1) the design stage is carried out using Autodesk Fusion 360 software, 2) the manufacturing stage is carried out using machine tools and their accessories, 3) the assembly stage of each component both made and standard become a complete stu die set, 4) the stage of testing the die set by performing a compression test on a compression testing machine (UTM Galdabini) with various test parameters. The results of the buckling test show that the bending force required for bending a stainless steel plate with a thickness of 1 mm is in the range of 92 N – 125 N, while for a thickness of 2 mm it ranges from 113 N – 163 N. The bending angle produced is 107O45' – 115O45' for a thickness of 1 mm, and 100O20' – ??116O45' for a thickness of 2 mm. The conclusion obtained is that this die set designed and made has shown performance and meets the requirements as a press tool that can bend stainless steel plates.
Front Matter Jurnal Energi dan Manufaktur Vol.14.1. April 2021 Editorial Team JEM
Jurnal Energi Dan Manufaktur Vol 14 No 1 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

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

Abstract

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Perbandingan kekuatan kompresi struktur laminasi dan prepreg dari komposit jute-epoxy Gede Adi Yoga Saputra; I Made Astika; I.D.G Ary Subagia
Jurnal Energi Dan Manufaktur Vol 14 No 1 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2021.v14.i01.p05

Abstract

This experiment has conducted to investigate mechanical properties of pipe structure performed by natural composite. The composite has been fabricated in two modes such laminate and prepreg reinforcement by vacuum injection molding. Compression test have been conducted for each variety in five times repeating. The specimen was made and test according to the ASTM D2166M-16 standard. The purpose of this research is to investigate and comparation of compression strength of laminate and prepreg structure composite pipe. The test result shows that laminates mode of pipe composite using the woven jute fabric has a lower in compression strength about 711.34 [MPa] compared to prepreg mode about 1184.9 [MPa]. In addition, the young modulus of the laminate composites has about 5.37 [GPa], and the prepreg mode has value about 6. 885 [GPa]. This value indicates that the prepreg mode more strength than the laminates mode in composite pipe due to the prepreg in tangential direction the compression energy absorbed by the fiber absolutely.
Rancang bangun sistem penangkap sampah Daerah Aliran Sungai (DAS) berbasis integrasi screw conveyor dan sistem pemantauan menggunakan Internet of Things (IoT) Putu Brahmanda Sudarsana; I Made Putra Arya Winata; I D. G. Ary Subagia
Jurnal Energi Dan Manufaktur Vol 14 No 1 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2021.v14.i01.p01

Abstract

Waste material flowing in rivers creates several problems in various aspects, especially in environmental aspects. One of the waste-capturing mechanisms which is widely applied is the trash rack. However, studies show that trash racks have the potential to block river flow which increases the risk of flooding. This study proposes a screw conveyor-based waste capturing mechanism with a modification of the blade’s design resembling a trash rack and integrated with monitoring system using the internet of things. The research was conducted through three methods of virtual prototyping, the CAD (Computer-Aided Design) design method through calculation of machine elements and 3-dimensional design process using Autodesk Inventor Professional 2018 software, the design analysis method which includes computational fluid dynamics analysis and three-dimensional stress analysis using ANSYS software, as well as methods for designing and testing monitoring systems using the open-source NodeMCU board and Google Firebase real-time database. The result obtained from this research are the design and specifications of screw conveyor components, v-belt transmission systems, ball contact bearings, and electric motors with a waste-capturing capacity of 0.368 m3/s. The results of the design validation show that the velocity of water flowing through the design geometry is not significantly reduced and the design is able to withstand a combination of self-load and pressure loads due to water flow. The monitoring website has been able to display real-time sensor-acquired data.
Perencanaan Proses Pengolahan Sampah Plastik dan Kebun di Kabupaten Boyolali dengan Prinsip Karbonisasi Menjadi Energi Mayang Ananda Rini; Novica Ayu Sari; Whindy Ndaru Oktaviani; Rarastika Nur Ghaida; Mega Mutiara Sari; I Wayan Koko Suryawan
Jurnal Energi Dan Manufaktur Vol 14 No 1 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2021.v14.i01.p06

Abstract

Waste management in Boyolali Regency is one of the challenges to achieve the smart city criteria. Garbage in Bolali Regency contains 56.12% plastic composition and 37.13% garden waste. Plastic and garden waste has a calorific value that exceeds 5000 kcal/kg, so it can be used as briquettes. The purpose of this study is to analyze the proper planning and can be carried out in Boyolali Regency by using the carbonization process to produce quality briquettes. The waste processing process consists of the process of sorting plastic waste and garden waste, then counting, then carbonization is carried out, so that briquettes are obtained according to standards. The total waste treated is about 90 ton/day and 45 ton/day, for plastic waste and garden waste respectively. If this process is applied at least, it can reduce as much as 50.77% of waste generation in Boyolali Regency. The total recovery of waste energy from the carbonization facility can reach 5611384.6 MJ/day. The land requirement from the processing process reaches 117 ² with the layouting process having dimensions of 264 m x 65 m.
Pengaruh kedalaman las pada pengelasan gesek puntir dua muka logam Magnesium AZ31 Irza Sukmana; Hafiz Favian Gustin; Tarkono .
Jurnal Energi Dan Manufaktur Vol 14 No 1 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2021.v14.i01.p02

Abstract

Friction Stir Welding (FSW) categorized as solid-state welding method. The working principle of FSW is to utilize combination of rotation of tool and penetration force to produce heat energy which changes the workpiece phase to be semi-solid and make in possible to joined. Magnesium is a light metal that is widely used in aircraft, automotive, construction, and medical equipment components. In this study, AZ31 magnesium metal welding was joined by friction stir welding method which was applied to the upper and lower surfaces of the workpiece or called double side friction stir welding (DFSW). DFSW method aims to obtain joining without having to change the workpiece phase into a liquid, this is because magnesium is a metal with a low flame temperature characteristic. With the DFSW method, the potential for the workpiece to burn during the joining process can minimized better than joining by conventional welding methods that is fusion welding method. There are 3 variations of the depth of weld parameters that are applied in this study 1.6 mm, 3.6 mm, and 5.6 mm. From this research, it is known that the depth of weld factor greatly affects the quality of the resulting joints, based on testing it is known that the best results are obtained with a depth of weld of 5.6 mm.
Rancang bangun mesin press baglog untuk pembuatan media tanam bibit jamur merang Deri Teguh Santoso; Ratna Dewi Anjani; Rianita Puspa Sari; Febri Aljabar
Jurnal Energi Dan Manufaktur Vol 14 No 1 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2021.v14.i01.p03

Abstract

Mushroom baglog machine is used to assist mushroom farmers in producing mushroom seedling media. It works by compressing baglog media to make it tightly packed and slicing straw for planting media. Because mushroom seeds are bundled in bags (bags) in the shape of compressed logs, the mushroom growth media is sometimes called baglog. Compaction of mushroom seedling medium seeks to enhance the density of the media and its capacity to absorb water. The approach of building a mushroom baglog press machine with low power consumption is appropriate for small farmers' demands. To build a mushroom baglog press machine, numerous machine parts must be designed according to the requirements of the electric motor, belt, pulley, chain, sprocket, and shaft, as well as the convenience of operation. The calculations assume a power output of 0.5 hp, a rotational speed of 1420 rpm, and a transmission ratio of 1:60. The shear stress value on the step shaft in the punch is an accurate measurement, indicating that the design stress is greater than the actual stress.

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