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All Journal Teknik Mesin "TEKNOLOGI" Rekayasa Mesin Journal of Engineering and Management in Industrial System Indonesian Journal of Disability Studies Jurnal IUS (Kajian Hukum dan Keadilan) Jurnal Riset Ekonomi dan Bisnis Jurnal Teknologi Terapan Sinergitas Multidisiplin Ilmu Pengetahuan dan Teknologi (SMIPT) Indonesian Journal of Multidisciplinary Science PELS (Procedia of Engineering and Life Science) Notary Law Journal LamLaj
Sudjito Soeparman
Jurusan Teknik Mesin Fakultas Teknik Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences

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Pemetaan Potensi Energi Angin di Perairan Indonesia Berdasarkan Data Satelit QuikScat dan WindSat Dida, Hero P; Suparman, Sudjito; Widhiyanuriyawan, Denny
Jurnal Rekayasa Mesin Vol 7, No 2 (2016)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (666.453 KB) | DOI: 10.21776/ub.jrm.2016.007.02.7

Abstract

There were two kinds of monsoon winds in Indonesia. They are the east and the west monsoon winds. Both of them blow alternately in a year through the Indonesian territory. The velocity and energy of monsoon winds in Indonesian territorial sea were mapped by using MatLab program. The velocity and energy data were obtained by using QuikSCAT satellite from January 1999 until December 2009, meanwhile WindSat from January 2004 until December 2014. The results show that high energy of monsoon winds start from Indian oceans until Nusa Tenggara sea, then from Arafuru sea to Banda sea, Java sea, Karimata strait and the southern region of south Sulawesi.
Pengaruh Temperatur Karbonisasi terhadap Mikrostruktur dan Pembentukan Kristal pada Biokarbon Eceng Gondok sebagai Bahan Dasar Absorber Gelombang Elektromagnetik Radar Imammuddin, Azam Muzakhim; Soeparman, Sudjito; Suprapto, Wahyono; Sonief, Achmad As'ad
Rekayasa Mesin Vol 9, No 2 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (479.939 KB) | DOI: 10.21776/ub.jrm.2018.009.02.10

Abstract

Radar Absorbing Materials (RAM) or radar absorbing materials of radar electromagnetic waves are materials used to reduce or eliminate radiation of radar electromagnetic waves in order to avoid reflection of waves. At this time the development of RAM research leads to materials derived from nature. Some materials derived from nature that has been used as RAM such as rice husk, bamboo, coconut shell, coconut husk, wood fiber, and wood flour. In this study, eichornia crassipe is made into biocarbon or activated carbon for use as a base material for RAM. Carbonization is one way to transform water hyacinth into biocarbon or activated carbon. The method used in this research is Experimental Research. The independent variables of this research are carbonization temperature starting from temperature 500oC, 600oC, 700oC, 800oC, 900oC and 1000oC. The results showed that the higher the carbonization temperature, the more open pores will be with 2 μm diameter at 1000oC, and the higher the carbonization temperature than the percentage of carbon crystal formed higher with the value of 14% at temperatures 900oC and 1000oC. The biocarbon structure of eichornia crassipe is crystalline and amorphous making it suitable for use as RAM material.
Unjuk Kerja Reflektor Radiasi Panas dengan 1 Baris Sirip terhadap Efisiensi Kompor LPG Sudarno, Sudarno; Soeparman, Sudjito; Wahyudi, Slamet; Widodo, Agung Sugeng
Jurnal Rekayasa Mesin Vol 9, No 2 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.965 KB) | DOI: 10.21776/ub.jrm.2018.009.02.2

Abstract

It has been known from the previous researchers that the use of the heat radiation reflector can improve the efficiency of the LPG stoves. Based on the radiation theory, the radiation energy is emitted radially in all directions. Therefore, a kind of method to guide the heat radiation is required to minimize the heat losses. One of the method is to add some fins to the reflector in order to capture the potential heat loss from the non-finned reflector. In this work, we use one fin line reflector made from a plate of stainless steel in the shape of cutted-cone. The boiling water test is used to investigate the efficiency of LPG stoves. We find that the efficiency of LPG stoves can be increased by adding one fin line reflector by about 5.21% and 1.75% than that one without reflector and non-finned reflector, respectively. The result of the temperature distribution shows that one fin line reflector enlarges the area of complete combustion.
Pengaruh Pemasangan Sudu Pengarah dan Variasi Jumlah Sudu Rotor terhadap Performance Turbin Angin Savonius Ully, Dedy Nataniel; Soeparman, Sudjito; Hamidi, Nurkholis
Jurnal Rekayasa Mesin Vol 5, No 2 (2014)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.321 KB)

Abstract

The objectives of research were to understand the influence of the installation of guide vane on the performance of Savonius wind turbine and to acknowledge the number of rotor blade which produces the most maximum performance. There are three variations for the number of rotor blade, which are 2, 3 and 4 blades on the range of wind speed are 4-7 m/s. Result of research indicated that rotor with three blades can give better performance than rotor with two and four blades. Rotor with guide vane has produced better performance in power coefficient rate for 0,3638 at wind speed 5 m/s, while rotor without guide vane can only provide power coefficient for 0,2595 at similar wind speed 5 m/s.Keywords: Wind Energy, Savonius Wind Turbine, Guide Vane and Performance
Corporate Performance Measurement Balanced Scorecard Through Approximation Sustainability at Pabrik Gula Krebet Baru Malang Utoyo, Utoyo; Soeparman, Sudjito; Astuti, Murti
Rekayasa Mesin Vol 1, No 2 (2010)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (461.217 KB)

Abstract

PG. Krebet Baru consists unit I/II be sugar industrial company with capacity 11.500 tcd, in this time PG.Krebet Baru cope to fulfil national sugar need only seen from ability reachess profit and tall sale level for that companies to want watchfulness aim correct performance measurement system to analyze performance with concept sustainability balanced scorecard that be method development balanced scorecard with add social environment aspect, because this aspect is very krusial to PG. Krebet Baru that presents citizen solid intermediate and, to achieve aim, used several methods AHP and OMAX also detect point of view, mission, target stipulating with performance measurement from each perspective. for researcher activity support submits kuisioner to customer 25 respondents, employee 25 respondents and 2 leadership respondents PG. Krebet Baru and PG.Candi Baru Sidoarjo. kuisioner used to measures /employee customer satisfaction with stipulating KPI complete the heavy, result kuisioner at validity test and realiabilitas. from measurement analysis result is got 30 kpi and 30 sub kpi's as a whole period performance achievement index 2009 performance scores: 7,37 (yellow) mean the performance not yet achieve target, furthermore kpi score 0 until 7 (red/yellow) as much as 27 kpi/sub kpi need repair subsidizes performance as a whole. Keywords : AHP, performance, KPI, OMAX, Sustainability
Pengaruh Campuran Sampah Plastik dengan Katalis Alam terhadap Hasil Produk Pyrolisis Nuryosuwito, Nuryosuwito; Soeparman, Sudjito; Wijayanti, Widya; Sasongko, Mega Nur
Rekayasa Mesin Vol 9, No 2 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.192 KB) | DOI: 10.21776/ub.jrm.2018.009.02.3

Abstract

Currently, various methods have been developed to overcome the problems caused by garbage. Pyrolysis is one methode of waste processing which is considered to be prospective enough to be developed. It?s because some advantages such as high conversion ratio and high energy content and potency as an alternative fuel in the future. Therefore, in this paper characteristics of pyrolysis will be studied. The waste materials used are catalyst and plastic waste. The resultant products of the pyrolysis process analyzed by Gas Chromatography / Mass Spectroscopy (GC / MS), while the thermal decomposition analysis was performed using Thermo Gravimetric Analysis (TGA). The results of pyrolysis process in isothermal conditions of a single component and a mixture of plastic waste and natural catalyst show that the final temperature of pyrolysis and the rate of heating affects to the distribution of pyrolysis products for all samples. As pyrolytic temperatures increase, liquid and gas products increase, while solid products tend to decrease. In the temperature range of 300°C, 400°C, 500°C, 600oC pyrolysis temperature with a heating rate of 100°C / min is the ideal temperature for obtaining the pyrolysis product of the liquid fraction and and the maximum gas fraction for all waste types studied.
Pengaruh Variasi Diameter Lubang dan Bentuk Profil Elektroda serta Jumlah Pelat Netral terhadap Produksi Brown Gas de Fretes, Henry Valentino; Soeparman, Sudjito; Widhiyanuriyawan, Denny
Rekayasa Mesin Vol 10, No 2 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.02.7

Abstract

Electrolysis is a process of decomposing water molecules (H2O) into hydrogen (H2) and oxygen (O2) with the help of electrical energy as a trigger for the process. In the electrode process, it takes two electrodes to be placed in water. Electrolysis reaction is a redox reaction, in which the reduction reaction occurs at the cathode forming hydrogen and oxidation occurs at the anode and forms oxygen. The purpose of this study was to determine the effect of variations in the diameter of the electrode hole, the shape of the electrode and the number of neutral plates on the production of Brown Gas by using NaOH as a catalyst. The electrodes used are plain, square, circle and cross shape, and the diameter of the electrode hole is 5 mm, 8 mm, 10 mm and 12 mm. besides that the number of neutral plates varied 4 pieces, 6 pieces, and 8 pieces. NaOH dissolved in water has a percentage of 1.77%. From the results of the study, it is shown that the rate of production increased as the number of neutral plates increased and the power needed by the generator also increased, but the efficiency of the generator was smaller. The diameter of the electrode hole and the shape of the electrode also affect Brown gas production, this is because the electrode cross-sectional area in contact with the electrolyte also has different values. The highest productivity value on cross shape electrode, 10 mm electrode hole diameter and the number of neutral plate 8 pieces, and the lowest in the form of the plain electrode, 5 mm hole diameter and 4 neutral plates. The lowest generator efficiency in the electrode variation is a circular shape, the diameter of the electrode hole is 12 mm and the use of 8 neutral plates and the largest in the square electrode, 12 mm electrode hole diameter and 4 neutral plates.
Pengaruh Variasi Campuran Solar Dan Biodiesel Dari Minyak Jelantah Terhadap Sudut Injeksi Dan Dinamika Pembakaran Rahmadi, Hairian; Soeparman, Sudjito; Pratikto, .
Teknik Mesin "TEKNOLOGI" Vol 12, No 4 Okt (2010)
Publisher : Universitas Negeri Makassar

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

Abstract

The development of the world today that require the use of renewable energy as fuel non-renewable fossil fuels in particular. Because fossil fuels are declining in number, then needed alternative energy sources as a substitute fuels. As one alternative fuel is biodiesel which is often added in fossil fuels such as biodiesel mixed with diesel fuel. With increasing biodiesel in diesel fuel will increase nilat viscosity, increasing the value of the viscosity of biodiesel in diesel fuel injection will allegedly spreading angle narrows and the dynamics of combustion is expected to affect the dynamics of combustion. This research was conducted with a mix of diesel fuel and biodiesel, with a mixture of 0 *, 20, 40, 60, 80, 100% biodiesel, tested using agricultural machinery YANMAR brand with 10.5 bar pump injector, nozzle 7.5 bar with a diameter of 1 mm , using a dynamo to drive a knock-as to pump injection pump. Angle spread, the dynamics of combustion using a video camera. The results showed that the angle spread narrowed as the increasing percentage of biodiesel in diesel fuel ie from 13.650 to 12.370 on pure biodiesel. fire and high velocity will increase with the addition of biodiesel in diesel fuel. High growth speed of the fire and flames on the percentage of  biodiesel blend showed the highest high-fire reached with kecepatan 101 cm, 1,3 cm / s, which approximates the high heat and speed of the diesel fuel fire that reached 95 cm and a speed of fire 1.2 cm / sec. Keywords: Biodiesel, diesel fuel, angle of injection, combustion dynamics.
Pengaruh Pelat Penyerap terhadap Kinerja Solar Still di Kota Ngabang Astrada, Astrada; Soeparman, Sudjito; Hamidi, Nurkholis
Jurnal Rekayasa Mesin Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.01.10

Abstract

The purpose of this study was to determine the effect of the use of black paint and gravel as an absorbent plate on solar still performance. This research was conducted to overcome the problem of limited clean water in the city of Ngabang, West Borneo. The research method used in this study is a direct experimental method for the object under study. Tests carried out on two solars still with a variety of absorbent plates, namely concrete coated with black paint and concrete coated with gravel. Surya is still made to have the same covering glass geometry. The duration of observation is 13 hours. Data collection is carried out every 10 minutes, starting at 06.00  until 19.00 local time. The results showed that concrete coated with gravel has higher performance compared to concrete coated with black paint as an absorbent plate on solar still. In the solar still, with gravel absorbent plates, the volume of distilled water is 3.64 L / 13 hours, and efficiency is 43.93%. Meanwhile, solar still coated with black paint as an absorbent plate producing a water volume of 2.42 L / 13 hours and an efficiency of 29.32%. The longer the observation time the sun's performance is still with gravel variations as an absorbent plate, the better it is compared to those who use black paint.
Application Solar Energy for Charging Battery Mobile Phone Elmahdi, Mohamed Abdulhadi; Suparman, Sudjito; Pramono, Sholeh Hadi
Jurnal Rekayasa Mesin Vol 3, No 3 (2012)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (431.428 KB)

Abstract

Photovoltaic energy is the conversion of sunlight into electricity. A photovoltaic cell, commonly called a solar cell or PV, is the technology used to convert solar energy directly into electrical power. A battery charger is a device used to put energy into a secondary cell or recharge able battery by forcing an electric current through it. Digital devices, especially mobile phones, need electricity that can be obtained from local electricity station converted into direct current using proprietary charger. Yet, the users can not always find the local electricity station such as in travelling or in condition where electricity becomes unavailable at the moment. On the other side, the use of local electricity to power mobile phones increases the fossil fuel consumption since the main source of energy for our current local. The solar energy is the ideal solution to the problems of energy and the environment and provides environmental safety factor as the solar energy is clean, renewable energy does not pollute the air and leave no waste. The charge controller is divided into two circuits: overcharge controller and discharge controller. Overcharge controller limits the maximum voltage when recharging process is being held. The circuit implemented is an operational amplifier that works as comparator, of which output controls the transistor that will stop or allow the charging current passed to the battery, the result is able to meet the design characteristics for the controller. These results are very useful for charging battery form sun light and it’s more economical and environmentally friendly and the advantage of the system compared to charger mobile phone ac to dc. And this solution for the electrification of remote areas.Keywords: controller, solar panel, battery .
Co-Authors . Pratikto A.A. Ketut Agung Cahyawan W Agung Sugeng Widodo Amin Nurdin, Amin Ardyanto Darmanto Ari Rianto Astrada Astrada Azam Muzakhim Imamuddin Danang Triagus Setiyawan DC, Kuswardani de Fretes, Henry Valentino Dedi Nurdiansyah Dedy Nataniel Ully Denny Widhiyanuriawan Denny Widhiyanuriyawan Dida, Hero P Dwiana Hendrawati Eko Siswanto Eko Yohanes Frederik Demmatacco Hairian Rahmadi Hengki Firmanda I made Andi Arsana Ikhsan, M. Rizki Imammuddin, Azam Muzakhim Jeffrie Jacobis Malakauseya Lilis Yuliati Mega Nur Sasongko Moch. Agus Choiron Moch. Agus Choiron Mohamed Abdulhadi Elmahdi Muhammad Nizar Ramadhan Muharom Muharom Murti Astuti Nugroho, Setyawan Dwi Nurkholis Hamidi Nuryosuwito, Nuryosuwito Nuvida, Levya Otivian Pradigdo, Dedy Rika Lestari Rudy Soenoko Rudy Soenoko Rusdi Sambada Saputra, Nanda Sarip Sarip sarip, sarip Slamet Wahyudi Sonief, Achmad As'ad Sri Widiyawati Sudarno Sudarno Sugiarto S Supaat, Dina Imam Utoyo Utoyo Wafi, Mahmud Hibatul Wahyono Suprapto Widya Wijayanti Widya Wijayanti Yudy Surya Irawan Yusuf Dewantoro Herlambang