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All Journal Turbo : Jurnal Program Studi Teknik Mesin International Journal of Innovation in Mechanical Engineering and Advanced Materials Jurnal Tekno Mesin Jurnal Poros Teknik Mesin Unsrat
Hardi Gunawan
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Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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 1 
PENENTUAN LAJU KONSUMSI BAHAN BAKAR CAMPURAN SOLAR DENGAN MINYAK TANAH UNTUK SUATU GENSET YANMAR–SOWA Hardi Gunawan; I Nyoman Gede
Jurnal Tekno Mesin Vol. 2 No. 2 (2015)
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

Di saat minyak tanah tersedia dengan harga relatif lebih murah dibandingkan dengan bahan-bakar-minyak/ BBM solar, maka sekelompok masyarakat berinisiatif mencampur solar dengan minyak tanah.Penelitian ini bertujuan menentukan pengaruh pencampuran minyak tanah dengan solar terhadap laju konsumsi bahan bakar suatu Genset Yanmar TS155 – Sowa15kVA yang dilaksanakan di Laboratorium Teknik Mesin Universitas Sam Ratulangi di tahun 2012.Data diambil dengan kondisi beban genset 0, 250, 500, 750, 1000, 1500, dan 2000W pada putaran konstan 1500 rpm. Beban genset adalah rangkaian lampu pijar. Genset mula-mula diuji memakai bahan bakar solar (automotive diesel oil), kemudian memakai solar yang dicampur dengan 20, 35, dan 50% minyak tanah. Untuk setiap titik, dilakukan tiga pengujian. Waktu yang diperlukan motor untuk mengkonsumsi 1000 ml bahan bakar dicatat, sementara putaran motor dijaga konstan dengan mengamati tegangan listrik yang dihasilkan genset.Perhitungan menunjukkan laju konsumsi bahan bakar dari motor yang diuji dengan BBM campuran (solar + minyak tanah) adalah konsisten lebih tinggi bila dibandingkan dengan yang BBM solar. Khususnya pada beban 250W konsumsinya lebih tinggi 56.5%, sedangkan pada beban lainnya rata-rata lebih tinggi 6.1%.Kata kunci : motor diesel, laju konsumsi bahan bakar, BBM-solar, minyak tanah
PERFORMANSI MOTOR BENSIN SEPEDA MOTOR SUZUKI SMASH 110 CC DENGAN BAHAN BAKAR CAMPURAN BENSIN DAN “CAP TIKUS” Mario Herlen Pajow; Hardi Gunawan; Tertius Viktor Yefta Ulaan
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 1 No. 1 (2012): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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One solution in utilization of fossil fuel in a motorcycle with gasoline engine is mixing the gasoline with methanol. In this research, a test was conducted on a year 2003 edition Suzuki Smash 110 cc motorcycle to measure is fuel consumption using the methanol gasoline mixture. The methanol used in this research is a traditional Minahasa liquor which is called “Cap Tikus”. The traditional liquor then mixed with gasoline with 5, 10, and 15% volume ratio.In this research, it is assumed that the contents of gasoline is octane (C8H18) and that “Cap Tikus” contains 65% methanol (CH3OH) and 35% water (H2O). From the calculations, it is obtained that upper heating values of the mixture fuel are 12.225; 11.775; 11.261; and 10.744 kkal/kg for 0, 5, 10, and 15% volume proportion of “Cap Tikus” respectively. From tests it is obtained that specific fuel consumption values 0,073; 0,076; 0,079; and 0,081kg/kWh for 0, 5, 10, and 15% of mixture.The calculated theorical power using the heating values of the fuel are 0,575; 0,525; 0,475; and 0,425 hp for the mixing fuel with 0, 5, 10, and 15% volume proportion of “Cap Tikus”. The result showed that mixing gasoline with methanol up to 15% volume ratio is not increased the power of the engine.Keywords : Suzuki Smash Engine, Methanol, Fuel Consumption.
UNJUK KERJA MOTOR SUZUKI SMASH 110 CC DENGAN BAHAN BAKAR KOMBINASI BROWN GAS DAN BENSIN Arther Adolof Rantung; Hardi Gunawan; I Nyoman Gede
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 1 No. 1 (2012): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

One of the alternative fuel mixture that can be used by the gasoline motor is Brown's Gas. The gas is produced from the electrolysis solution of baking soda inside the elektrolizer. Percentage of baking soda solution is 99.45% destilled water and 0.55% baking soda.This research used a Suzuki Smash 110 cc motorcycle. Testing performed with engine speed of 1500, 2000, 2500 rpm. The testing time is 2, 3, 5, 8, and 10 minutes. Observation and calculation showed that the average rate of fuel consumption respectively are 125,7, 176,5, and 243,0 gr/h for gasoline and are 96.4, 121,9, 171,6 gr/h for motor combination brown gas and gasoline. From the above results it’s obtained that the efficient fuel consumption is 171,6 gr/h that is with engine speed 2500 rpm.Linear regression model is y = -5.919 x + 204.7 (R ² = 0.858), while quadratic regression model is y = -2.226 x ² + 20.72 x + 145.5 (R ² = 0.541). The quadratic regression fit better to the data for the coefficient of determination closer to 1.Keywords: Gasoline Motorcycle, Suzuki Smash 110 cc, Brown Gas
ANALISIS KONSUMSI BAHAN BAKAR MOTOR BENSIN YANG TERPASANG PADA SEPEDA MOTOR SUZUKI SMASH 110CC Ferdywanto Parende; Hardi Gunawan; I Nyoman Gede
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 1 No. 1 (2012): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

This research aims to determine the fuel consumption of gasoline engine mounted on a 110cc Suzuki Smash. The data taken on the motorcycle in different gear ratios and speed for a travel distance of 2.5 km.Analysis was conducted on gear ratios 2, 3 and 4 at speeds of 20, 25, 30, 35, and 40 km / h. Observations and calculations for the arrays of indicate that fuel consumption on gear ratio 2 is 359.2, 410.9, 439.0, 545.9, and 648.9 g / h respectively. At gear ratio 3 is 296.9, 295.8, 408.6, 494.4 and 624.5 g / h respectively. At gear ratio 4 is 201.9, 249.4, 412.0, 330.8 and 538.0 g / h respectively. It is concluded that the higher the speed of the motor, the greater the rate of consumption of fuel.From the observation it was found that the test was performed at the engine rotation of 2136 to 6182 rpm. Results demonstrate that at the speed of 20 km / h to 40 km / h it is more efficient operate with gear ratio 4.Keywords: Fuel Consumption, Gasoline Motor, Suzuki Smash 110cc.
ANALISIS KONSUMSI BAHAN BAKAR MOTOR BENSIN YANG TERPASANG PADA SEPEDA MOTOR SUZUKI SMASH 110CC YANG DIGUNAKAN PADA JALAN MENANJAK Rocky Fernando Laki; Hardi Gunawan; I Nyoman Gede
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 2 No. 1 (2013): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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This research aims to determine the fuel consumption of gasoline engine mounted on a 110cc Suzuki Smash. The data taken on the motorcycle in different gear ratios and speed for a travel distance of 1.4 km. Analysis was conducted on gear ratios-1, 2 and 3 at speeds of 10, 15, 20, 25,30,35 and 40 km / h. Observations and calculations for the a set of speed indicate that fuel consumption at gear ratio-1 is 539,9, 664,3, 770,1, 927,0, dan 989,8 g / h respectively. At gear ratio-2 is 506,8, 630,7, 730,4, 832,2 dan 982,0 g / h respectively. At gear ratio-3 is 421,7, 502,2, 558,1, 529,5 dan 721,0 g / h respectively. It is concluded that the higher the speed of the motor, the betterr the rate of consumption of fuel. From the observation it was found that the test was performed at the engine rotation range of 3210 to 6030 rpm. Results demonstrate that at the speed of 10 km / h to 40 km / h it is more efficient operate with gear ratio-2. Keywords: Fuel Consumption, Gasoline Motor, Suzuki Smash 110cc.
ANALISIS KONSUMSI BAHAN BAKAR CAMPURAN BENSIN PREMIUM DENGAN “CAP-TIKUS” PADA SEPEDA MOTOR SUZUKI SMASH 110 CC Frisco Lengkong; Hardi Gunawan; Tertius V. Y. Ulaan
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 2 No. 2 (2013): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

Mixing gasoline (premium) with a "Cap-Tikus" is one solution to reduce the consumption of conventional fuels. In this study, testing was conducted on a Suzuki Smash 110 CC motorcycles made ​​in 2003 to analyze the fuel consumption for the 2.5 km mileage on gear ratio-2, 3, 4, and velocity 20, 25, 30, 35, 40 km / h with volume mixture of 15% "Cap-Tikus" and 75% gasoline. "Cap-Tikus" used is containing 65% - 90% alcohol (ethanol). Trial of using the gasoline mixed with "Cap-Tikus" is fail to start the engine. Replacing “Cap-Tikus” with “Spiritus” successfully run the engine. It is found that the consumption of the mixture fuel is reducing the consumption of gasoline. The most efficient consumption fuel obtained in the 4th gear using the fuel mixtures are 20.43; 28.64; 38.15; 40.50, and 51.20 g / hr respectively for speed 20, 25, 30, 35 and 40 km / h. Keywords: "cap-tikus", alcohol, fuel consumption, spiritus.
PENGARUH PENCAMPURAN BROWN GAS KE BENSIN PREMIUM UNTUK MOTOR BENSIN YANG DIPASANG PADA SEPEDA MOTOR SUZUKI SMASH 110 CC Desly Theo Daud Bawiling; Hardi Gunawan; I Nyoman Gede
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 2 No. 2 (2013): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

This research is aimed to determine the effects of brown gas mixed with gasoline on  fuel consumption of a Suzuki Smash 110cc. Data taken in this study is the fuel consumption of the vehicle on different  gear ratio, and velocity of the vehicle within a distance of 2.5 km. Analyzing is done on gear ratio-1 at 10,15,20,25,30 km/h, whereas on gear ratio-2,3 and 4 at 20, 25, 30, 35 and 40. The result of observations and computation shows fuel consume rate gear ratio-1 is 266,4; 349,3; 455,1; 562,6 and  697,5 gr/hr on gear ratio-2 is 359,2, 410,9, 439,0; 545,9 and  648,9 gr/hr,  on gear ratio-3 is 296,9; 295,8; 408,6; 494,4 and 624,5 gr/hr, on gear ratio-4 is 201,9; 249,4; 412,0; 330,8 and 538,0 gr/hr with the speed of 20, 25, 30, 35 and 40 km/h consecutively. The conclusion is the higher the speed of motorcycle, the greater the rate of consumption. It was found that the testing is executed in the range of engine speed of 2136 to 6182 rpm. These results demonstrate that the motor cycle is more efficient if using gears ratio-4 at a speed of 20 km/h to 40 km/h. Key Word :  fuel consumption , brown gas, gasoline engine, Suzuki Smash 110cc.
KAJIAN EFISIENSI TERMAL DARI BOILER DI PEMBANGKIT LISTRIK TENAGA UAP AMURANG UNIT 1 Hanzen Yauri Kurniawan; Hardi Gunawan; Benny Maluegha
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 4 No. 2 (2015): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

ABSTRACT Indonesia has a considerably high potential resources that can be harnessed to generate electricity through power plants. At Amurang Steam Power Plant (PLTU Amurang), coal is used for the fuel and boiler is the equipment to burn the coal producing heat. Boiler is one of the equipments in the thermodynamics cycle which aims to turn the water into steam. This study was conducted to determine the thermal efficiency of the boiler in PLTU Amurang Unit 1 based on operational data. The data collected from the PLTU Amurang . The data is then used to calculate the thermal efficiency of the boiler. Calculations using the direct method and the indirect method. The calculations shows boiler thermal efficiency is 91.73% and 92.33% respectively. When compared with the thermal efficiency of the boiler according to specifications then the difference is 0,41% and 0,19%.   Key Word: Boiler and Thermal Efficiency
Simulasi Computational Fluid Dynamics Tunnel Diffuser Turbin Arus Laut Sumbu Vertikal gunawan, hardi
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 2 (2024): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i2.3766

Abstract

Pembangkit listrik tenaga arus laut (PLTAL) merupakan salah satu solusi inovatif dalam menghasilkan energi listrik secara berkelanjutan dan ramah lingkungan. Namun, kecepatan arus laut di Indonesia relatif rendah, berkisar antara 0,1 m/s hingga 2,0 m/s serta efisiensi turbin arus laut yang masih rendah. Oleh karena itu, diperlukan teknologi untuk meningkatkan kecepatan arus laut agar hasilnya lebih efisien. Tujuan dari penelitian ini adalah untuk membuat model desain dan simulasi tunnel diffuser yang mewakili struktur fisik dan komponen kunci pembangkit listrik tenaga arus laut. Simulasi dilakukan pada tunnel diffuser turbin arus laut sumbu vertikal menggunakan perangkat lunak Solidworks Computational Fluid Dynamics, dengan variasi kecepatan arus 0,5 m/s dan 2,0 m/s. Hasil penelitian pada simulasi kecepatan arus laut 0,5 m/s, kecepatan meningkat menjadi 0,9 m/s, sedangkan kecepatan arus laut 2,0 mendapatkan peningkatan kecepatan arus laut menjadi 3,5 m/s.. Dari simulasi desain konstruksi terowongan ini, menunjukkan bahwa konstruksi terowongan yang dirancang pada turbin arus laut sumbu vertikal berpengaruh dalam meningkatkan kecepatan arus laut yang masuk, dan membuat aliran yang semula turbulen menjadi aliran laminer setelah memasuki terowongan. Sehingga arus laut yang masuk memutar turbin dapat meningkatkan kinerja turbin.
Design and Analysis of a Vertical Axis Ocean Current Turbine Tunnel Using SolidWorks Computational Fluid Dynamics Gunawan, Hardi; Ruhyat, Nanang; Novianto, Sentot
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 6, No 1 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i1.27652

Abstract

The development of renewable energy in the marine power generation sector presents a promising approach to producing electrical energy in a sustainable and environmentally friendly manner. Indonesia, with its vast oceanic territory, holds significant potential for harnessing marine energy. However, the relatively slow speed of ocean currents in the region, typically ranging from 0.1 m/s to 1.5 m/s, poses a challenge to the efficiency of marine power generation. To overcome this limitation, this research focuses on the design and analysis of a vertical-axis ocean current turbine tunnel aimed at increasing the speed of ocean currents, thereby enhancing the overall efficiency of energy production. The study combines a thorough literature review with experimental research methods, utilizing SolidWorks Computational Fluid Dynamics (CFD) software to simulate the tunnel's impact on ocean current velocity. The simulations reveal that the tunnel construction significantly boosts current speeds, increasing them from 1.0 m/s to 1.7 m/s, and from 1.5 m/s to 2.6 m/s. This increase in velocity directly translates to higher kinetic energy available for conversion into electrical power by the turbine. Moreover, the study shows that the tunnel construction contributes to a more uniform flow of ocean currents, as evidenced by the Reynolds numbers obtained—100.250 at a current speed of 1.0 m/s and 150.375 at 1.5 m/s. These values, being below 2000, indicate laminar flow conditions within the tunnel, which are beneficial for optimizing turbine performance by reducing turbulence and ensuring a stable energy output. The findings underscore the effectiveness of the tunnel design in improving the efficiency of vertical-axis ocean current turbines, making it a viable solution for enhancing renewable energy production in regions with low ocean current speeds.
Co-Authors Arther Adolof Rantung Benny L. Maluegha Benny Maluegha Desly Theo Daud Bawiling Ferdywanto Parende Frisco Lengkong Hanzen Yauri Kurniawan Hanzen Yauri Kurniawan, Hanzen Yauri I Nyoman Gede Mario Herlen Pajow Nanang Ruhyat Rocky Fernando Laki Sentot Novianto, Sentot Tertius V. Y. Ulaan Tertius Viktor Yefta Ulaan