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All Journal Rekayasa Mesin Journal of Engineering and Management in Industrial System Journal of Environmental Engineering and Sustainable Technology The Indonesian Green Technology Journal Scientific Journal of Mechanical Engineering Kinematika Sinergitas Multidisiplin Ilmu Pengetahuan dan Teknologi (SMIPT) PELS (Procedia of Engineering and Life Science)
Eko Siswanto
Jurusan Teknik Mesin Fakultas Teknik Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Other

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PENDEKATAN ALGORITMA CROSS ENTROPY-GENETIC ALGORITHM UNTUK MENURUNKAN MAKESPAN PADA PENJADWALAN FLOW SHOP Dian Setiya Widodo; Purnomo Budi Santoso; Eko Siswanto
Journal of Engineering and Management in Industrial System Vol 2, No 1 (2014)
Publisher : Badan Penerbit Jurnal, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (590.721 KB) | DOI: 10.21776/ub.jemis.2014.002.01.6

Abstract

 In the flow shop scheduling each job will go through every machine in the same order. The goal of this research is to complete a series of jobs in order to obtain the optimal makespan  for stick skewers rounding machine. It is become necessities because the company has no planning and scheduling, while the demand exceeds the capacity Thus, optimize the scheduling is needed to be done. One way to optimize the scheduling is to minimize makespan. Based on the results of the research Cross Entropy Algorithm-Genetic Algorithm (CEGA) can provide the optimal solution. This is evident by a comparison technique that enumeration techniques obtained similar results with makespan 1982 seconds, but when compared to the company, CEGA method is better with makespan efficiency of 12.18%. The use of CEGA with the MATLAB has more advantages that simplify and speed in performing the calculations to can optimal solution. 
ANALYSIS OF TEMPERATURE DISTRIBUTION OF HEAT TRANSFER COEFFICIENT IN COOLING SYSTEM (SIMULATION) USING POROUS MEDIA WITH POROSITY VARIATION Ahmad Hamim Su'udy; Eko Siswanto; Rudy Soenoko
Journal of Engineering and Management in Industrial System Vol 5, No 2 (2017)
Publisher : Badan Penerbit Jurnal, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1236.58 KB) | DOI: 10.21776/ub.jemis.2017.005.02.3

Abstract

Abstract: Internal combustion engine is an engine that is old enough and today has much alternative energy that is found to shift from the role of motor fuel, The cooling system in internal combustion engine, if not handled properly will cause something that is fatal is the occurrence of overheating. Cooling during this time using the fin and radiator, and research continues to grow in terms of heat transfer, that is by using porous media, with the help of computer simulation then the role of the fin and radiator can be replaced with porous media with porosity variation 10%, 15%, 20% 25%, 30% so that the temperature distribution will be obtained. The result of the research by using simulation shows that the porosity value of porous media, the temperature distribution value is also bigger. The lower porosity of the value of (h) the heat transfer coefficient will increase.
PENERAPAN KONSEP GREEN MANUFACTURING PADA BOTOL MINUMAN KEMASAN PLASTIK Wisma Soedarmadji; Surachman Surachman; Eko Siswanto
Journal of Engineering and Management in Industrial System Vol 3, No 2 (2015)
Publisher : Badan Penerbit Jurnal, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.825 KB) | DOI: 10.21776/ub.jemis.2015.003.02.3

Abstract

Abstract Green Manufacturing is a production process that uses input with a relatively low environmental impact and produce little or no waste or pollution. Application of green manufacturing in the production process of plastic packaging beverage bottles through several stages of the coloring process, preparation of cleaning, repair environmentally friendly, and environmentally friendly conditions. Delivery bottle plastic packaging to the manufacturer for recycling reaches ± 2-3 tons in one shipping every week. Delivery is done three times a month, so that averaged reach 8-12 tons per month for waste bottles of all brands. The purpose of this research are: 1) Knowing the positive influence between staining with cleansing preparation, 2) Knowing the positive influence between the preparation of cleaning with environmentally friendly improvements, 3) Knowing the positive effect between environmentally friendly improvements to the condition of eco-friendly, 4) Knowing the positive influence between staining with environmentally friendly conditions. This study used a survey method using data analysis Partial Least Square (PLS). Results of this research are: 1) Variable staining and no significant positive effect on the variable cleansing preparation 2) Variable cleaning preparations positive and significant impact on the improvement of environment-friendly 3) Variable environmentally friendly improvements and significant positive effect on the condition of environment-friendly. 4) Variable staining and no significant positive effect on the condition of environment-friendly.
EFFECT OF VENTURI DIAMETER OF CARBURETOR ON PERFORMANCE OF SIX-STROKE 125 CC COMBUSTION ENGINE Eko Siswanto; Agung Sugeng Widodo; Nurkholis Hamidy; Denny Widhiyanuriyawan; Gilang Rausan Fikri Noor
Journal of Environmental Engineering and Sustainable Technology Vol 3, No 1 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (723.591 KB) | DOI: 10.21776/ub.jeest.2016.003.01.3

Abstract

Performance of six stroke single power combustion engine affected by venturi diameter of carburetor is presented. This study is to begin on development of six-stroke single power of combustion engine (CE). Developing of this six stroke CE is based on addition of duration on both mass- and thermal diffusion, and on mixing time before the combustion. Evaluation of the six-stroke CE performance is done via enlarge venturi diameter of carburetor. Selected venturi diameters are 18 (mm) and 20 (mm). Fuel of the CE is gasoline-based using research octane number (RON) of 92. Interval of each ascending rotation speed is 400 (rpm), and observation was done using a constant throttle aperture 30 (%). The observed performances of the 125 (cc) six-stroke CE is then compared using a convensional four-stroke 125 (cc), as well. It informs that diameter 20 (mm) can increase average of about 21(%) on torsion, 21 (%) on power, 16 (%) on specific fuel consumption (SFC), and 23 (%) on thermal efficiency to that of the diameter 18 (mm). If compared to four-stroke CE, the six-stroke CE has lower in SFC and thermal efficiency, however, it has higher in average value of torsion, power, and engine speed, respectively about 15 (%).   
Analisis Distribusi Temperatur Koefesien Perpindahan Panas pada Sistem Pendingin (Simulasi) Menggunakan Porous Media dengan Variasi Porositas Ahmad Hamim Su'udy; Eko Siswanto; Rudy Soenoko
The Indonesian Green Technology Journal Vol 7, No 2 (2018)
Publisher : Program Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2018.007.02.04

Abstract

The internal combustion engine is a fairly old machine and currently has many alternative energy which apparently has not been able to shift the role of the internal combustion engine, for the cooling system in the internal combustion engine greatly affect the performance and if not handled properly will cause something fatal, ie when the engine is too hot it can cause over heating and the machine can not work anymore. For Cooling system has been using fin and radiator. Research continues to grow in terms of heat transfer, ie by using porous media. Presence of porous media cooling system is expected to replace the role of fin and radiator easier maintenance and able to transfer heat well. In this case the research is assisted by simulation to see the temperature distribution that occurs in porous media with variation of 10%, 15%, 20% 25%, 30% The result of research by using simulation shows that the porosity value of porous media, the temperature distribution value also greater than. then the higher the porosity value the value (h) the heat transfer coefficient will be low.Keywords: Heat Transport, Porosity, Temperature
PERFORMANSI MOTOR BAKAR 6 TAK DENGAN 2 KALI PEMBAKARAN MENGGUNAKAN BAHAN BAKAR PERTAMAX DAN ETANOL Elandi; Eko Siswanto; Agung Sugeng Widodo
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.203

Abstract

The six-stroke combustion engine is a refinement of the four-stroke engine by adding 2 steps from the four-stroke combustion engine. The 2 steps in question are the second compression stroke and the second expansion stroke, so in one work cycle, there are 2 compressions and 2 combustions. The method used is a direct experimental research method by testing the intended object. Based on previous research, different fuels affect performance (torque, power, and fuel consumption). This study aims to obtain the performance value of Pertamax and Ethanol fuel in a six-stroke engine, the fuel used is Pertamax fuel with a purity of 100% and Ethanol with a purity of 99.7%. Based on the research, analysis, and discussion results, the performance of a six-stroke combustion engine with 2 combustions using Pertamax and Ethanol fuels concluded that the maximum torque using Pertamax fuel is 8.15 N.m at 7200 rpm engine speed. For comparison, Ethanol fuel is 6.59 N.m at 7200 rpm engine speed, the average torque of Pertamax fuel is 1.16% higher than Ethanol fuel. Maximum power for Pertamax fuel is 8.25 HP at 7200 rpm engine speed. For comparison, Ethanol fuel is 6.67 HP at 7200 rpm engine speed.
Efek Cuaca Pada Kinerja Distilasi Air Energi Surya Dengan Kaca Ganda Rusdi Sambada; Sudjito Soeparman; Widya Wijayanti; Eko Siswanto
Prosiding Seminar Nasional Sinergitas Multidisiplin Ilmu Pengetahuan dan Teknologi Vol 3 (2020): PProsiding Seminar Nasional Ketiga Sinergitas Multidisiplin Ilmu Pengetahuan dan Tekno
Publisher : Yayasan Pendidikan dan Research Indonesia (YAPRI)

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

Abstract

Produktivitas air bersih untuk minum dan efisiensi dari distilasi air energi surya konvensioal umumnya rendah. Peningkatan produktivitas dan efisiensi distilasi air energi surya konvensional dapat dicapai dengan menaikkan temperatur air masuk. Pada penelitian ini temperatur air masuk distilasi air energi surya dinaikkan dengan cara yang lebih sederhana dari penelitian sebelumnya. Pada penelitian ini temperatur air masuk dinaikkan dengan memanfaatkan panas pengembunan menggunakan kaca ganda. Kaca ganda adalah dua kaca yang disusun sejajar, satu di atas yang lain dengan jarak antara kaca sebesar 2 mm. Kaca bawah merupakan kaca penutup alat distilasi berukuran 1m2. Air masukkan dialirkan diantara kaca bawah dan kaca atas sebelum masuk ke dalam alat distilasi. Selama mengalir diantara kaca, air masukkan menerima energi panas pengembunan sehingga temperaturnya naik. Pada distilasi air energi surya konvensional, energi panas pengembunan merupakan energi yang tidak dimanfatkan dan terbuang ke lingkungan. Cuaca merupakan faktor alam yang sangat berpengaruh pada produktivitas dan efisiensi distilasi air energi surya. Pada cuaca yang cerah energi surya yang diterima alat distilasi air energi surya lebih besar dibandingkan pada cuaca yang berawan atau mendung. Jumlah energi surya yang diterima berpengaruh pada produktivitas dan efisiensi alat distilasi air energi surya. Penelitian ini bertujuan mengungkapkan efek cuaca terhadap produktivitas dan efisiensi distilasi air energi surya dengan kaca ganda. Penelitian dilakukan dengan metode eksperimen pada lima variasi energi surya sebesar 383, 452, 484, 509 dan 596 W/m2. Sebuah distilasi air energi surya konvensional digunakan sebagai pembanding produktivitas dan efisiensi yang dihasilkan distilasi air energi surya kaca ganda. Hasil penelitian menunjukan kinerja distilasi air energi surya dengan kaca ganda lebih baik dibandingkan distilasi air energi surya konvensional. Distilasi air energi surya dengan kaca ganda menghasilkan rata-rata produktivitas sebesar 35,6% dan rata-rata efisiensi sebesar 32,6% lebih baik pada variasi cuaca dengan besar energi surya antara 383 sampai 596 W/m
Comparative Study of Combustible Species for 4-stroke Otto Cycle Combustion Motor and 6-stroke MUB-2 Cycle Combustion Motor with Fuel Pertamax Dedi Nurdiansyah; Sudjito Soeparman; Eko Siswanto
Procedia of Engineering and Life Science Vol 1 No 2 (2021): Proceedings of the 2nd Seminar Nasional Sains 2021
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (448.723 KB) | DOI: 10.21070/pels.v1i2.1013

Abstract

This paper describes the ratio of levels of combustible species (CO, HC, CO2 and lambda) of a four-cycle otto motor with a six-stroke MUB-2 motor with additional combustion duration and two working steps. The increase in combustion duration aims to re-burn combustible species that have not been completely burned in the first combustion. This study used a 4 stroke motor with a capacity of 125 cc and then modified it into a 6 stroke motorbike with twice the duration of combustion. The observed local atmospheric conditions at a relative humidity of about 76% rH, and the ambient temperature and pressure were around 24 ° C and 101.32kPa, respectively. The implementation of data retrieval with crankshaft rotation at intervals of 600 rpm from 2400 rpm to 7200 rpm.Using an anlyser gas, the MUB-2 six-stroke engine showed 12.36% CO levels, 27.30% HC levels, 30.8 CO2 levels % and 1.7% lower lambda than conventional four-stroke engines. This means that in the 6 stroke MUB-2 motor, the combustion process of the air and fuel mixture is more perfect than the conventional 4 stroke motor.
STUDI KOMPARASI MOTOR BAKAR 6 TAK DENGAN SIKLUS DUA KALI PENGAPIAN MENGGUNAKAN BAHAN BAKAR PERTAMAX DAN ETANOL Elandi Elandi; Eko Siswanto; Agung Sugeng Widodo
Jurnal Rekayasa Mesin Vol. 13 No. 2 (2022)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v13i2.979

Abstract

The six-stroke combustion engine is a refinement of the four-stroke machine by adding two strokes of the four-stroke combustion engine. The two steps in question are the second compression stroke and the second expansion stroke. The method used is an experimental research method. This study aims to obtain the performance value and exhaust gas emission values ​​for Pertamax and Ethanol fuels on a six-stroke engine. The fuel used is Pertamax fuel with a purity of 100% and Ethanol with a purity of 99.7%. Based on the results of research, analysis, and discussion, the performance of a six-stroke combustion engine with two cycles of ignition with Pertamax and Ethanol fuel is concluded that the average torque of Pertamax fuel is 1.07% higher than Ethanol fuel. The average adequacy of Pertamax fuel is 1.27% higher than Ethanol fuel. The combustion efficiency of the Pertamax fuel six-stroke motor is 1.06% less than ethanol fuel, the cycle work (Wnet) of the Pertamax fuel six-stroke engine is 1.07% higher than that of ethanol fuel, the thermal efficiency (ηth) of the Pertamax fuel six-stroke engine is comparable to that of ethanol fuel while the fuel efficiency (ηf) of the six-stroke ethanol fuel engine is 1.09% higher than the pertamax fuel. The exhaust gas emission test results for Pertamax fuel CO are 21.2% higher than ethanol fuel. CO2 emissions from Pertamax fuel are 1.56% less than ethanol fuel, and HC exhaust emissions from Pertamax fuels are 3.7% higher than ethanol fuels.
Co-Authors Agung Sugeng Widodo Agung Sugeng Widodo Ahmad Hamim Su’udy Dedi Nurdiansyah Denny Widhiyanuriyawan Elandi Elandi Elandi Gilang Rausan Fikri Noor Nurkholis Hamidy Purnomo Budi Santoso Rudy Soenoko Rudy Soenoko Rusdi Sambada Sudjito Soeparman Surachman Surachman Widodo, Dian Setiya Widya Wijayanti Wisma Soedarmadji