cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota denpasar,
Bali
INDONESIA
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 387 Documents
 29   30   31   32   33 
ANALISIS PERBANDINGAN PEMASANGAN SIRIP PADA PIPA BERGETAR TERHADAP PERPINDAHAN PANAS Putu Wijaya Sunu
Jurnal Energi Dan Manufaktur Vol 3, No.1 Juni 2008
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (64.316 KB)

Abstract

Pengaruh dan Pertimbangan Faktor Lingkungan untuk Peningkatan Kualitas pada Lini Produksi H Harisupriyanto
Jurnal Energi Dan Manufaktur Vol 7 No 2 (2014): Oktober 2014
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.349 KB)

Abstract

Pemborosan (waste) yang berasal dari proses produksi muncul sebagai indikasi adanya problem dandampak terhadap lingkungan, kesehatan dan keselamatan kerja.Indikasi wastetersebutadalahakibatdaridefect waste di mesin finishing dan waiting waste di mesin mounting. Defect waste yang tinggimengakibatkan Environment, Health and Safety (EHS) waste yang tinggi pula. Untuk itu perusahaanharus melakukancontinous process improvement yang terus menerus.Tujuan yang ingin dicapaiadalah identifikasi waste di proses produksi, mencari akar penyebab permasalahan dan memberikanalternatif solusi yang dapat dilakukan perusahaan untuk mengurangi dampak timbulnyawasteIdentifikasi waste dilakukan berdasarkan pada, E-DOWNTIME yakni sembilan jenis waste.Jenis waste ini meliputi Environmental, Safety, and Health (EHS), Defect, OverProduction, Waiting,Not utilizing employee, Transportation, Inventory, Motion, dan Excessive processing waste. Untukmemetakan proses yang mengindikasikan adanya waste (pemborosan), diperlukan value streammapping.Pemetaan tersebut bertujuan untuk mencari critical waste.Berdasarkan pada critical wastemaka dicari akar permasalahan yang dapat dirunut dengan penggunaan RCA (root cause analisys).Untuk mencari prioritas resiko yang paling tinggi terhadap wastediperlukan FMEA (failure mode andeffect analisys). Dengan adanya prioritas tersebut maka alternatif solusi dapat dihasilkan.Alternatifperbaikan yang diusulkan adalah pembentukan timTotal Productive Maintenance, perbaikan kualitasproduk, serta eksperimen terhadap pengurangan pemakaian komponen. Dengan pendekatan valuemanagementmakapembentukan dan pelatihan untuk timTotal Productive Maintenance adalahalternatif terbaiknya. Hasil akhir dari alternatif ini adalah meningkatnya nilai sigmaproduk dari 2,91menjadi 3,08 Kenaikan sigmatersebut memberikan indikator perbaikan pada lini produksi dandampak lingkungan.Kata Kunci: EHS, waste, RCA, FMEA, sigma.Waste that comes from the process of production appears as an indication of the problem and theimpact on the environment, health and safety. The waste is the result of a defect in the finishingmachine and waste waiting in the engine mounting. Defect high waste resulting Environment, Healthand Safety (EHS) waste is also high. Therefore, the company must conduct a continuous process ofcontinuous improvement. The goal is to identify waste in the production process, find the root causeof the problem and provide alternative solutions that can be done by the company to mitigate theimpact of the emergence of waste. Waste identification is done based on the E-DOWNTIME whichconsists of nine types of waste. This type of waste includes Environmental, Safety, and Health (EHS),Defect, Over Production, Waiting, Not utilizing employee, Transportation, Inventory, Motion, andExcessive waste processing. To map the process that indicates a required waste value streammapping. The mapping aims to find critical waste. Base on critical waste then look for the root causescan be traced to the use of RCA (root cause analysis). To search for the most high-risk priority towaste FMEA (failure mode and effect analysis) is needed. With the priority is the alternative solutioncan be generated. Alternatives proposed improvement is the formation of a team of Total ProductiveMaintenance, improvement of product quality, as well as experiments on reducing the use ofcomponents. With the value management approach, the establishment and training of a team of TotalProductive Maintenance is the best alternative. The final result is the increasing alternative sigmavalue of the product becomes 3.08 2.91. The increase in the sigma provides an indicator ofimprovements on production lines and environmental impact.Kata Kunci: EHS, waste, RCA, FMEA, sigma
Simulasi Perbaikan System Maintenance dengan Pendekatan Konsep Lean Maintenance irfan irfan; Muhammad Ikhsan Hamdy
Jurnal Energi Dan Manufaktur Vol 12 No 1 (2019)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (323.252 KB) | DOI: 10.24843/JEM.2019.v12.i01.p03

Abstract

PT. Perkebunan Nusantara V mengolah kelapa sawit yang menghasilkan Crude Palm Oil (CPO) dengan produksi 60-ton TBS/jam. Proses produksi yang berlangsung di Perusahaan sering mengalami pemberhentian yang diakibatkan oleh tingginya frekuensi kerusakan mesin thresher dikarenakan sistem perawatan yang belum optimal menyebabkan waktu penundaan (Down Time) 2-3 jam untuk proses perbaikan di mesin tersebut. Hal ini dapat dilihat pada data kondisi mesin thresher tahun 2018 yaitu terdapat 18 kali komponen mesin yang harus mengalami perawatan di luar dari perawatan mesin. Permasalahan ini bisa terjadi 4-5 kali dalam 1 bulan berdampak buruk pada perusahaan yaitu menurunkan jumlah rendemen. Maka dari itu pada penelitian ini akan dilakukan penentuan aktifitas perawatan mesin tresher agar kerusakan pada mesin dapat diminimalisir dengan pendekatan Failure Mode Effect Analysis (FMEA) dan Realibility Centered Maintenance (RCM). Dari hasil FMEA terhadap 18 komponen mesin tresher dengan RPN terbesar adalah Gearbox dengan nilai 648 poin. Selanjutnya dari hasil RCM dengan aktifitas perawatan schedule on condition dan schedule on restoration task terdapat 9 komponen. Untuk hasil dari MVSM pada proses penggantian komponen mesin tresher terdapat delay maka dilakukan simulasi arena dan penjadwalan penggantian komponen mesin, maka nilai efisiensi penggantian meningkat untuk komponen Gearbox dari 40% naik menjadi 54,26%. PT. Perkebunan Nusantara V processes oil palm which produces Crude Palm Oil (CPO) with a production of 60 tons of FFB / hour. The production process that takes place at the Company often has a stop caused by the high frequency of damage to the engine thresher because the maintenance system that has not been optimal causes a delay time (Down Time) of 2-3 hours for the repair process on the engine. This can be seen in the data on the condition of the thresher engine in 2018, which is 18 times the engine components that have to be treated outside the engine maintenance. This problem can occur 4-5 times in 1 month which has a negative impact on the company, namely reducing the amount of yield. Therefore, this research will determine the tresher engine maintenance activities so that damage to the engine can be minimized using the Failure Mode Effect Analysis (FMEA) approach and Reliability Centered Maintenance (RCM). From the results of the FMEA on the 18 components of the tresher engine with the largest RPN is Gearbox with a value of 648 points. Furthermore, from the RCM results with maintenance schedule on condition activities and schedule on restoration tasks there are 9 components. For the results of MVSM in the replacement process of tresher engine components there is delay, then an arena simulation and scheduling of engine components are replaced, then the value of replacement efficiency increases for Gearbox components from 40% to 54.26%.
Analisis aerodinamis pada variasi bentuk ekor desain bodi mobil hemat energi Nafisah Arina Hidayati; Fitra Setiaji; MuhammadAinul Yaqin; Dewi Mariya Ulfa; Moch. Agus Choiron
Jurnal Energi Dan Manufaktur Vol 10 No 2 (2017): Oktober 2017
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (276.883 KB)

Abstract

Abstrak Tuntutan konsep mobil masa depan dengan konsumsi energi yang rendah menjadi tantangan besar bagi ahli desain mobil. Untuk kalangan mahasiswa, ajang lomba mobil hemat energi yang sering diikuti adalah Kontes Mobil Hemat Energi (KMHE), dan Shell Eco Marathon (SEM). Penelitian ini bertujuan untuk mengetahui tingkat aerodinamis dari desain bodi mobil KMHE milik universitas Brawijaya. Analisa komputasi fluida dinamik dilakukan dengan memanfaatkan software aplikasi. Parameter desain yang digunakan yaitu panjang ekor pada mobil KMHE. Dari hasil penelitian ini didapatkan bahwa model bodi mobil dengan ekor pendek mempunyai sifat aerodinamis yang lebih baik dari kedua model lainnya dengan nilai koefisien drag dan gaya drag terendah. Kata kunci: Desain mobil, aerodinamis, drag, panjang ekor Abstract The demands of the future car concept with low energy consumption provide as big challenge for car design experts. For the students, energy-efficient car competitions that are often followed are the Energy Efficient Car Contest (KMHE), and Shell Eco Marathon (SEM). The objective of this study is to determine the aerodynamic level of KMHE car body design owned by UB. Computational Fluid Dynamic (CFD) analysis is done by utilizing application software. Design parameters used are tail length on KMHE car. From the results, it can be denoted that the car body model with a short tail has better aerodynamic properties than the other two models with the lowest of drag coefficient and drag force. Keywords: car design, aerodynamic, drag, tail length
Potency of Micro Hydro Power Plant Development Use of Kelampuak River Flow Located in Tamblang Village – Buleleng Dewa Ngakan Ketut Putra Negara
Jurnal Energi Dan Manufaktur Vol 3, No.2 Oktober 2009
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (358.382 KB)

Abstract

Need of electrical energy is increasing along with people population and economic growth. According to PLN data, Bali Province’s electrical consumption is predicted growth 5,6% in average every year. Until year 2007, electrical condition in Bali is categorized critical. If Power Plat in Bali, PLTG Gilimanuk that has power 130 MW is out of system, affecting Bali’s electrical back up is minus. Consecuenlly, it will be extinguishing if there is not adding power plan or new energy supply. This problem needs to be anticipated by use of thermal energy program such as coal, gas and geothermal and use of alternative energy such as solar, wind and ocean energies. Regency of Buleleng is one of Regency in Bali having potency of renewable energy development especially water resource. It has some rivers that have potency to be developed as a Micro Hydro Power Plant (PLTMH). One of them is Kelampuak River which is located in Tamblang Village. As a first step in developing of Micro Hydro Power Plant, it needs to be known water debit and head of the river. For that reason, it needs to be investigated debit and head of Kelampuak River so that it can be predicted the power can be generated.
Karakteristik Traksi dengan Kontrol Rasio CVT Pada Kendaraan Mikro Hibrida I Ketut Adi Atmika; IDG. Ary Subagia; IGAK. Suriadi
Jurnal Energi Dan Manufaktur Vol 8 No 2 (2015): Oktober 2015
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (733.292 KB)

Abstract

Abstrak :Teknologi otomotif belakangan ini berkembang dengan pesat. Desain body, kinerja engine/traksi, kinerja kestabilan, effisiensi bahan bakar, dan effek polusi udara adalah bagian-bagian yang dikembangkan untuk mendapatkan produk yang unggul. Dalam beberapa hal-hal bagian-bagian yang dikembangkan tersebut berjalan secara terpisah. Perbaikan kinerja stabilitas arah dan mampu kendali kendaraan sudah dilakukan dengan menambahkan sistem kontrol pengereman. Sistem kontrol traksi/torsi roda penggerak dengan Continously Variable Transmission (CVT) pada kendaraan mikro hibrida akan dibahas disini. Pada prinsipnya sistem kontrol pengereman dan sistem kontrol traksi ini berpegangan pada setting point ratio slip pada kondisi pengereman/percepatan optimum. Makalah ini akan menjelaskan analisa stabilitas dari sistem kontrol torsi roda penggerak dengan CVT menggunakan simulasi komputer. Untuk proses simulasi dibuat model kendaraan hibrida secara lengkap dengan input kondisi dan parameter operasi dimana sistem itu bekerja, dengan setting point ratio slip (?) pada koefisien gesek yang optimum. Analisa stabilitas difokuskan pada perilaku gerakan belok kendaraan. Yaw respon akan dibandingkan dengan yaw ackermannya, untuk mendapatkan gambaran kinerja perilaku arah kendaraan. Respon kontrol traksi akan dibandingkan dengan respon kontrol pengereman. Hasil simulasi menunjukkan pada kecepatan yang cukup tinggi yaitu 100 km/jam sistem kontrol traksi dengan CVT masih bekerja dengan baik, sedangkan kontrol pengereman pada kecepatan diatas 60 km/jam kondisi kendaraan cenderung susah dikendalikan (oversteer). Kata kunci: Kinerja kestabilan, sistem kontrol traksi, CVT, ratio slip (?), koefisien gesek longitudinal, yaw respon, yaw ackermanAbstract :Automotive technology is growing rapidly. Body design, engine or traction performance, stability performance, fuel efficiency, and the effects of air pollution are the parts that are developed to obtain a superior product. In some things developed parts of the run separately. Directional stability and performance improvements were able to control the vehicle is done by adding the braking control system. Traction or torque control system to the drive wheels Continously Variable Transmission (CVT) on micro hybrid vehicles will be discussed here. In principle, the braking system and traction control system is clinging to the setting point slip ratio on the condition of the braking or acceleration optimum. This paper will describe the analysis of the stability of the drive wheel torque control system with a CVT using computer simulations. For the simulation process is made fully hybrid vehicle models with input conditions and operating parameters in which the system works, the slip ratio setting point (?) the optimum friction coefficient. Stability analysis focused on the behavior of the vehicle turning movement. Yaw response will be compared with yaw ackerman, to get an idea of the performance behavior of the vehicle direction. Traction control response will be compared with the braking response. The simulation results show a fairly high speed of 100 km/h traction control system with CVT performance is still good stability, while use the braking control at speeds above 60 km/h vehicle condition tend to be difficult to control (oversteer). Keywords: Stability performance, traction control systems, CVT, ratio slip (?), coefficient of friction longitude, yaw response, yaw ackerman
Atmospheric Corrosion of Galvanized Low-Carbon Steel at Rural, City, and Industrial area in Bandar Lampung Khairul Ummah; Abdul Azis Muslim; Irza Sukmana
Jurnal Energi Dan Manufaktur Vol 9 No 1 (2016): April 2016
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.487 KB)

Abstract

Abstract:This research conducted to continue the previous study about atmospheric corrosion phenomenon on uncoated lowcarbon steel at Lampung Province, where it using coated low carbon steel. The atmospheric corrosion rate at LampungProvince are 152.910 g/m2/y at rural area, 267.593 g/m2/y at city, and 420,503 g/m2/y for industrial are. Based on ISOcategory, the atmospheric corrosion rate is C2 at rural, C3 at city and C4 at industrial area. Coating processes of lowcarbon steel can decreased the atmospheric corrosion rate about 172.023 g/m2/year or 39% at rural, and 91.746g/m2/year or 18% at industrial area.Keywords: Galvanized, low carbon steel, atmospheric corrosion, corrosion ratAbstrak:Penelitian ini untuk melengkapi studi terhadulu dimana dilakukan penelitian fenomena korosi atmosfer pada baja karbonrendah yang tidak dilapisi di Propinsi Lampung. Dalam penelitian ini digunakan baja karbon rendah yang telah dilapisi.Hasil penelitian ini menunjukkan bahwa laju korosi atmosfer di Propinsi Lampung untuk daeerah pedesaan adalah152,910 g/m2/y, perkotaan 267,593 g/m2/y, dan daerah industri 420,503 g/m2/y. Berdasarkan standar katagori ISO,maka laju korosi atmosfir untuk baja karbon rendah yang dilapisi di propinsi Lampung adalah pada kategori C2 dipedesaan, C3 di Kota, dan C4 di daerah industri. Pelapisan menurunkan angka laju korosi sebesar 172.023 g/m2/yearatau 39% untuk daerah perkotaan dan 91.746 g/m2/year atau 18% di daerah industri.Kata Kunci: Pelapisan galvanik, baja karbon rendah, korosi atmosfir, laju korosi.
Penentuan Parameter Produksi Material Rem Ramah Lingkungan Untuk Aplikasi Kereta Api Menggunakan Serat Tandan Kosong Kelapa Sawit Sebagai Penguat Hilman Syaeful A; IGN Wiratmaja Pudja; Agus Triono
Jurnal Energi Dan Manufaktur Vol 5 No 1 (2012): Oktober 2012
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (762.151 KB)

Abstract

Evaluation to determine production parameters of material for train brake that is environmentally friendlyby using serat tandan kosong kelapa sawit (TKKS) as reinforcement was done by using extensionevaluation method. The research was carried out with variations some of parameter productions or bymaking material such as pressure load, pressure time and temperatures. The samples then were testedbased on criteria from the technical specification for composite brake from PT KAI. It is obtained fromthe testing that the best parameter productions are: Pressure 15 ton, pressuring time 40 minutes, andtemperature is 200oC. The result from evaluation indicate that sample S14 as the the best sample thatapproach technical spesification from the PT. KAI
Pengaruh fraksi volume serat terhadap umu I Made Astika
Jurnal Energi Dan Manufaktur Vol 2, No.1 Juni 2007
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (21.769 KB)

Abstract

Weight reducing was one of the focuses in automotive industrial. The leaf spring especially in light vehicle (e.g. solar powered vehicle) can use the composite materials instead of the metal. The excellences of composite are light in weight, high corrosive resistance, high fatigue life, and high elasticity. In the present study, the composite was tested it’s tensile and fatigue strength. The material was composite with Woven Roving fiber and Yucalac 157 BQTN-EX as the matrix. Matrix to fiber ratio was 60:40, 68:32, and 76:24, respectively. The specimens were produced by press hand lay-up. The results showed that the fatigue life increased with fiber volume fraction as seen in the S-N curve. The observed failure modes were fiber debonding, matrix cracking, delamination, and fiber breaking. The combination of these failure modes had significant impact to decreasing of the composite strength and stiffness.
Analisis Perubahan Laju Korosi dan Kekerasan pada Pipa Baja ASTM A53 Akibat Tegangan dalam Dengan Metode C Ring Johannes Leonard
Jurnal Energi Dan Manufaktur Vol 7 No 2 (2014): Oktober 2014
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (82.991 KB)

Abstract

Penelitian untuk mempelajari fenomena pengaruh lingkungan korosif terhadap laju korosi dankekerasan pada baja ASTM A53 yang mengalami pembebanan awal, maka pengamatanterhadap masalah tersebut dilaksanakan. Penelitian ini bertujuan untuk memahami danmengetahui bagaimana pengaruh tegangan dalam yang berbeda pada variasi beban terhadaplaju korosi, kekerasan, dan lamanya perendaman dalam air laut. Pengujian dilakukan melaluipercobaan perendaman dala air laut pada perairan sekitar wilayah kota Makassar, SulawesiSelatan. Material dasar yang digunakan adalah pipa baja ASTM A53 grade A yang sesuai untukpenggunaan lepas pantai., dibuat dalam bentuk specimen C-Ring, menggunakan standar ASTMG38-01(2007). Pengujian dilakukan selama 30 hari. dengan interval 3 hari. Perhitungan lajukorosi dilakukan berdasarkan kehilangan berat. Selain itu dilakukan pula uji kekerasan dengancara Rockwell. Selanjutnya, perhitungan dan pengujian dilakukan pada laboratorium MetalurgiFisik FTUH. Dalam penelitian ini benda uji terlebih dahulu dilakukan proses pembebanan, dengabesar beban yang diberikan pada benda uji adalah 20 kg, 40 kg, 60 kg dan 80 kg. Berdasarkanpada hasil analisa dan perhitungan data-data yang diperoleh dari hasil pengujian kekerasan danlaju korosi, maka dapat diambil kesimpulan bahwa pengaruh terhadap laju korosi pada C-ringmeningkat dengan naiknya beban yang diberikan. Laju korosi benda uji (C-ring) yang dikorosidengan durasi 30 hari didapatkan nilai laju korosi tertinggi pada beban 80 kg yaitu sebesar 1,93dan laju korosi terendah pada beban 0 kg yaitu sebesar 0,66. Kekerasan rata-rata tertinggiterjadi pada benda uji dengan beban 80 kg yaitu 14 HRC. Sedangkan untuk kekerasan terendahterdapat pada benda uji dengan beban 20 kg yaitu 11 HRC. Dilihat dari perbandingan kekerasanawal dengan kekerasan yang sudah mengalami pembebanan dan korosi, sangat jelas bahwakekerasan spesimen menurun.Kata Kunci : Metode C-ring, Laju Korosi, Kekerasan, Baja ASTMResearch to study the phenomenon of corrosive environmental influences on the rate ofcorrosion and hardness

Page 31 of 39 | Total Record : 387

 29   30   31   32   33 

Filter by Year

2006 2023


Reset
Filter By Issues
All Issue Vol 6 No 01 (2023): April 2023 Vol 6 No 2 (2023): Oktober 2023 Vol 15 No 2 (2022) Vol 15 No 1 (2022) Vol 14 No 2 (2021) Vol 14 No 1 (2021) Vol 13 No 2 (2020) Vol 13 No 1 (2020) Vol 12 No 2 (2019) Vol 12 No 1 (2019) Vol 11 No 2 (2018): Published in Oktober 2018 Vol 11 No 1 (2018): Published in April 2018 Vol 10 No 2 (2017): Oktober 2017 Vol 10 No 1 (2017): April 2017 Vol 9 No 2 (2016): Oktober 2016 Vol 9 No 1 (2016): April 2016 Vol 8 No 2 (2015): Oktober 2015 Vol 8 No 1 (2015): April 2015 Vol 7 No 2 (2014): Oktober 2014 Vol 7 No 1 (2014): April 2014 Vol 6 No 2 (2013): Oktober 2013 Vol 6 No 1 (2013): April 2013 Vol 5 No 1 (2012): Oktober 2012 Vol 5, No.1 April 2011 Vol 4, No.2 Oktober 2010 Vol 4, No.1 April 2010 Vol 3, No.2 Oktober 2009 Vol 3, No.1 April 2009 Vol 3, No.2 Desember 2008 Vol 3, No.1 Juni 2008 Vol 2, No.2 Desember 2007 Vol 2, No.1 Juni 2007 Vol 1, No.2 Desember 2006 Vol 1, No 1 Juni 2006 More Issue