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All Journal Rekayasa Mesin Journal of Engineering and Management in Industrial System Journal of Environmental Engineering and Sustainable Technology FLYWHEEL : Jurnal Teknik Mesin Untirta ROTOR: JURNAL ILMIAH TEKNIK MESIN ASEAN Journal of Chemical Engineering International Journal of Mechanical Engineering Technologies and Applications (MECHTA)
Mega Nur Sasongko
Universitas Brawijaya
Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Karakteristik Pembakaran Dan Sifat Fisik Briket Ampas Empulur Sagu Untuk Berbagai Bentuk Dan Prosentase Perekat Fretes, Evedore Fredo de; Wardana, I Nyoman Gede; Sasongko, Mega Nur
Jurnal Rekayasa Mesin Vol 4, No 2 (2013)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.479 KB)

Abstract

Fossil fuel reserves are depleting to be anticipated by looking for alternative energy sources. Alternative energy that many developed and researched today is agricultural waste biomass fuel is formed into briquettes. In this research, briquettes are made from dregs the pith of sago in the four of form, namely : cylinders, blocks, cubes and prisms, with and without adhesive sago starch with the presentation of 5% and 10%.This research aimed to determine the effect form briquettes on the combustion rate and determine the physical properties of briquettes without carbonization process, with or without the addition of sago starch as an adhesive which include moisture content, ash content, volatile matter, fixed carbon and heating value.The results research that the form of briquettes affects the combustion rate where the fastest combustion speed was on briquettes form beams, cube and Prism. Percentage adhesive of sago starch affects the early combustion time where time is needed to ignite the briquettes greatest for percentage 10% and the lowest adhesive for briquettes without adhesives. Adhesive sago starch is also very influential on the moisture content, ash content, volatile substances, fixed carbon and heating value. Adhesive sago starch is also very influential on the moisture content, ash content, volatile matter, fixed carbon and heating value. The addition of adhesive sago starch lower heating value.Keywords: Briquettes, sago, Physical Properties, Combustion.
Pengaruh Prosentase Etanol terhadap Torsi dan Emisi Motor Indirect Injection dengan Memodifikasi Engine Control Module Rahmad, Hadi; Sasongko, Mega Nur; Wijayanti, Widya
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 (531.641 KB) | DOI: 10.21776/ub.jrm.2016.007.02.2

Abstract

This research present the torque and exhaust emission level from four stroke indirect injection fuel system engine. An engine fueled by ethanol gasoline blend. The original Engine Controle Module injected lean mixture into Combustion Chamber. Lean Mixture decreased Torque drastically. Therefore, the Engine Controle Module was modified to produce stoichiometric mixture. Injector was controlled by digital pulse of Fuel Controller. Ethanol was added into gasoline 0% - 100% at 1500 rpm-5000 rpm. The result demonstrate that increasing ethanol concentration into gasoline fuel system, decreasing Torque, and CO, HC, CO2 emission. By increasing ethanol concentration also increase CO2 emission to 34.6%.
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 Temperatur terhadap Laju Reaksi Tar Hasil Pirolisis Serbuk Kayu Mahoni pada Rotary Kiln Nugroho, Andi; Wijayanti, Widya; Sasongko, Mega Nur
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.2019.010.02.2

Abstract

Pyrolysis is a thermochemical process chemical decomposition of organic substances through the heating process without oxygen. It produced char, tar, and gas. Rotary kiln Pyrolysis is horizontal stove with biomass that being moved in certain rotary along the stove. Biomass particle movement in rotary kiln concentrated at the wall of the kiln in the passive layer. This layer will reach the surface where the layer will move to the bottom of the active layer. This research is an experimental study done with temperature variation 2500 C, 350OC, 450OC,500OC and 600oC, the nitrogen flow rate 3 ml/min and the pyrolysis time is 180 minutes. The equipment that used is built and developed for better result of observation using rotary klin. The rotary kiln will rotate uses an electric motor with velocity 3 rpm. Then a kinetic rate enumeration process is done. The experiment result shows that the temperature is so influential to the tar volume, the higher the temperature, the more tar volume we got. The highest number is at temperature variation 500o C with heating rate 1073 km/hour. The number of tar kinetic rate that produced from enumeration shows that the higher the temperature so the kinetic rate resulted is greater and the analysis result shows that tar volume from the enumeration approximates the actual number of tar volume.
Pengaruh Tegangan dan Waktu pada Proses Elektropolishing terhadap Surface Roghness Material Stainless Steel AISI 316L Widodo, Teguh Dwi; Raharjo, Rudianto; Kusumaningsih, Haslinda; Bintarto, Redi; Siswoyo, Redi Cipto; Sasongko, Mega Nur
Jurnal Rekayasa Mesin Vol 10, No 3 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.03.11

Abstract

The purpose of this work is to reveal the surface roughness and topography of AISI 316L stainless steel due to electropolishing processes. In this paper, AISI 316L was electropolished in various times of immersion and various voltage of the processes. The mechanism of electropolishing is eroding the surface of the substrate by controlling the electron excitation process. The electropolishing processes were carried out at 4, 5, and 6 minutes also in three different voltage 4, 6, and 8 volts. The results show that the surface roughness decrease as the treatment time and also as an increase in voltage.
Kinerja Thermoelectric pada Kotak Pendingin Berdasarkan Rangkaian Thermoelectric dan Putaran Fan Wind Tunnel Munawir, Munawir; Sasongko, Mega Nur; Hamidi, Nurkholis
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.4

Abstract

A thermoelectric cooler (TEC ) is a component of an electric solid-state cooler that works as a heat pump in the cooling process. Utilizing the peltier effect that is when an electric current is flowed heat absorption occurs on both sides of the thermoelectric and the release of heat on the other side. The use of thermoelectric as a coolant in cool box systems has been widely studied. The purpose of this study was to determine the performance of the cooler using thermoelectric based on the circuit and air velocity in the wind tunnel. The studied performance includes temperature difference, heat absorption, and coefficient of performance. The method used in this study is a real experimental method, with research variables namely series and parallel thermoelectric series and wind tunnel air velocity. Data were taken in the form of cool room temperature cold side temperature, hot side temperature, heatsink temperature, and ambient temperature. Thermoelectric connectivity electrically uses series and parallel circuits and is thermally arranged in series. The results showed that the thermoelectric circuit and wind tunnel air velocity affect the performance of the thermoelectric. Thermoelectric with series circuit produces the highest COP absorption compared to the parallel circuit. The highest performance thermoelectric series is obtained at an airspeed of 9.8 m/s. in these conditions the temperature difference (AT) produced reaches 19oC. the heat absorption (qc) reaches 34.26 watts and the COP reaches 0.89
Efek Intermolecular Forces: Perubahan Physical Properties pada Campuran Premium dan Bio-Additive Orange Peel Musyaroh, Musyaroh; Wijayanti, Widya; Sasongko, Mega Nur; Rizaldy, Ahmad Difal
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.15

Abstract

The addition of bio-additive in gasoline was needed in order to improve the anti-knock quality. The bio-additive used was orange peel in the form of essential oil. Nevertheless, it make any changes of fuel properties affecting standard compliances: physical properties, engine performances and exhaust gas emissions due to some main compound effects of orange oil; limonene up to 90%. The recent study aimed to analyze the blends of bio-additives and premium gasoline  experimentally related to improve the fuel properties theoretically. By verifying the blends, they were tested at blending concentration ratio from 1% to 75%. For each blend, the physical properties; kinematic viscosity, density, and calorific value were measured using ASTM D 445, ASTM D 92, and ASTM D 250.  The results show that the limonene gave many impacts on the change of properties fuel. Limonene is a non-polar compound with high intramolecular force intensity. It causes a spontaneous dipole and gave propagation effect on premium gasoline molecular compound. The effect influences dynamic molecular distribution by increasing the attractive force between opposite pole of premium gasoline and bio-additives blend. The decrease of intermolecular movement intensity will decrease the viscosity of the mixture. In contrary, the kinematic viscosity of the mixture will increase with increasing bio-additive concentration. In other pysical properties, the premium gasoline-bio-additive blends have low density at 1%, 5%, 10% and 25% addition concentration but it has high heating value of fuel blends.
Uji Performa Mesin Bensin dengan Sistem Injeksi Berbahan Bakar HCNG Sasongko, Mega Nur; Zuhri, Abdi Afifuddin
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.8

Abstract

Compressed Natural Gas (CNG) is an alternative renewable fuel gasoline replacement. However, due to the low heating value, the use of CNG in the engine will reduce its performance. The addition of hydrogen gas in CNG namely hydrogen-enriched compressed natural gas is expected to increase the power of the motor. This study aims to analyze the effect of hydrogen concentration on the performance of a CNG gasoline engine. The research was conducted on the engine with an indirect fuel injection system with a volume of 124,9 cc. The parameter of the engine that measured is torque, effective power, specific fuel consumption, and effective thermal efficiency. The results showed that the small percentage of hydrogen in CNG could increase the power of the gasoline engine. Power and efficiency reach a maximum of 10% hydrogen concentration. Increasing the proportion of hydrogen in CNG fuel above 10% will significantly reduce engine torque and power. Engine performance at optimal conditions with 10% hydrogen results in torque of 2.71 Kg.m at 670 rpm, effective power of 3.28 Ps at 1055 rpm, SFCe 0.17 Kg / Ps. Hours at 770 rpm and 33.62% effective thermal efficiency at 770 rpm
Pengaruh Campuran Bahan Bakar Biodiesel WCO - Diesel terhadap Karakteristik Api Hasil Pembakaran Spray Difusi pada Concentric Jet Burner Sukri, Sukri; Sasongko, Mega Nur; Widodo, Teguh Dwi
Jurnal Rekayasa Mesin Vol 12, No 2 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.02.22

Abstract

Biofuels from waste cooking oil (WCO) represent a sizable opportunity not only in terms of energy production but also as a way for sustainable development despite their low yield, higher viscosity, lengthy production time and cost. Alternatively, biodiesel can be blended at an appropriate blending ratio with convention diesel oils. The biodiesel and its blends is proved to give better emission characteristics than conventional diesel oils. This study aims to experimentally investigate the effect of the fuel blend on the combustion characteristics of  WCO biodiesel. The characteristic are the droplet size, flame height, flame width and temperature distribution. In this study, the blended fuel are B0 (Solar), B10, B20, B30, B40 and B100 (WCO biodiesel). Measurement and visualization of the combustion flame for each variation of the fuel mixture was were tested at different pressures, namely 4 bar and 5 bar. The experimental results show that the droplet size increases with increasing WCO concentration in the fuel; on the other hand, visualization and calculations show that the height and width of the flame of the fuel mixture decreases Observation on the temperature distribution shows that the WCO biodiesel mixture has the potential to increase the fire temperature at certain points
PENINGKATAN EFEKTIVITAS PERAWATAN MESIN PERONTOK BULU UNGGAS DENGAN METODE OVERALL EQUIPMENT EFFECTIVENESS DAN FAILURE MODE EFFECT ANALYSIS (Studi Kasus di Perusahaan Pengolahan Ayam Kampung Pasuruan) Khafizh Rosyidi; Purnomo Budi Santoso; Mega Nur Sasongko
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 (391.927 KB) | DOI: 10.21776/ub.jemis.2015.003.02.2

Abstract

Abstract Perusahaan Pengolahan Ayam Kampung is a company engaged in the processing of chicken that must not be separated from issues related to the effectiveness of the machine. This can be seen with the frequency of damage to the engine due to the damage resulted in a lot of product defects. Therefore we need effective measures in the maintenance of machinery and equipment to tackle and prevent such problems. Total Productive Maintenance (TPM) is a principle of management to improve productivity and efficiency of the production company to use the machine effectively. Not exactly the handling and maintenance of the machine will result in losses that are called by the Big Six Losess. The first step in efforts to increase efficiency in the production of this company is by measuring the effectiveness of the threshing machine feathers using Effectifitas Overall Equipment (OEE) followed by OEE measurement to determine the value of its effectiveness. Next, analysis of causal diagram is to be able to know the real problems that the main cause of losses caused by engine failure. Then, the analysis Failure Mode Effect Analysis (FMEA) was conducted to determine the priority improvements in the next period. The conclusion that can be drawn on the threshing machine feathers that the average value of the OEE for the period September 2013 - August 2014 was 65.14%. This indicates that the ability of thresers feathers in achieving their goals and in achieving effective use of machinery / equipment not yet reached the ideal conditions (≥85%). As for affecting the value of OEE based causal analysis is the lack of maintenance of the machine. Meanwhile, based on the analysis of FMEA can be known priority repairs that need to be done, namely: 1) Perform routine engine maintenance (512), 2) Making standards work (392), and Making Rubber threaded component maintenance schedule (320).
Co-Authors Adhy Ariyanto Agung Sugeng Widodo Andi Nugroho, Andi Arif Wahyudiono Christia Meidiana Dadang Hermawan Darmadi, Djarot Bangun Denny Widhiyanuriyawan Dewi, Fransisca Gayuh Utami Evedore Fredo de Fretes Faizal, Elka I Nyoman Gede Wardana I.N.G. Wardana Ibadurrohman, Ibrahim Ahmad Ikhsan, M. Rizki ING Wardana Jeffrie Jacobis Malakauseya Khafizh Rosyidi Kusumaningsih, Haslinda Lilis Yuliati Mietra Anggara Munawir Munawir Musyaroh, Musyaroh Nurhkolis Hamidi Nurkholis Hamidi Nurkholis Hamidy Nuryosuwito, Nuryosuwito Pratikto Pratikto Purnami Purnami Purnomo Budi Santoso Rahmad, Hadi Redi Bintarto, Redi Rizaldy, Ahmad Difal Rudianto Raharjo Saputro, Nurhadi Setiawan, Yustiza Rahadian Siswoyo, Redi Cipto Sonief, Achmad As’ad Sudjito Soeparman Sugiarto S sukri Sukri, sukri Suroso, Yosephine Diajeng Janur Prasasti, As’ad Munawir, Suryaningrat, Muhammad Suwarso, Wahyu Handoyo Teguh Dwi Widodo Trismawati Trismawati Wicaksono, Hangga Widhiyanuriyawan, Denny Widhiyanuriyawan widya wijayanti Widya Wijayanti Willy Satrio Nugroho Yuliansyah, Fisal Yusuf, M Umar Zuhri, Abdi Afifuddin