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I Nyoman Gede
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Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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STUDI EQUAL CHANNEL ANGULAR PRESSING (ECAP) SUHU NITROGEN CAIR PADA PADUAN Al-Mg-Si (Al 6061) [A Study On Equal Channel Angular Pressing At Liquid Nitrogen Temperature Of Al – Mg – Si (Al 6061) Alloys] Mabruri, Efendi; Gede, I Nyoman; Utomo, Edy Priyanto
Metalurgi Vol 29, No 3 (2014): Metalurgi Vol.29 NO.3 Desember 2014
Publisher : Pusat Penelitian Metalurgi dan Material - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.254 KB) | DOI: 10.14203/metalurgi.v29i3.294

Abstract

STUDI EQUAL CHANNEL ANGULAR PRESSING (ECAP) SUHU NITROGEN CAIR PADA PADUANAl-Mg-Si (Al 6061). Tulisan ini memaparkan pengaruh proses ECAP (equal channel angular pressing) padasuhu nitrogen cair terhadap sifat mekanik paduan Al-Mg-Si (Al 6061) dan dibandingkan dengan proses ECAPpada suhu kamar. Proses ECAP sebanyak 1-4 pass dilakukan di dalam cetakan dengan lubang dalam bersudut120o dengan rute Bc pada benda kerja Al 6061 dalam kondisi perlakuan pelarutan. Analisa XRD (x-raydiffraction) menunjukkan bahwa setelah proses ECAP terjadi pelebaran puncak pada semua bidang kisi danterjadi penguatan intensitas bidang kisi (111) sebagai bidang slip yang aktif pada Al 6061. ECAP suhu nitrogencair menghasilkan kekuatan tarik yang lebih besar pada regangan deformasi yang tinggi (pass 3 dan 4) denganelongasi yang lebih besar. Sementara itu, dimpel pada permukaan patahan Al 6061 yang diproses ECAP suhunitrogen cair memiliki ukuran rata-rata yang lebih kecil dibandingkan dengan Al 6061 yang diproses ECAP suhukamar. AbstractThe recent paper reports the effect of ECAP at liquid nitrogen temperature on the mechanical properties of Al-Mg-Si (Al 6061) alloys and compared to the room temperature ECAP. The ECAP experiments with route Bc were conducted on solution treated alloys using dies with internal channel angel of 120o for 1 to 4 passes. The XRD (x-ray diffraction) analysis showed that after ECAP the peak broadening occurred on all peaks and the peak intensity strength of (111) plane was highest as it considered as the active slip plane in the Al 6061 alloys. At high deformation strain (pass 3 and 4) the ECAP at liquid nitrogen temperature resulted in higher tensile strength and higher elongation to break compared to those of room temperature ECAP. Further, the dimples of tensile fracture surface of Al 6061 processed by liquid nitrogen temperature ECAP have mean size smaller than that of Al 6061 processed by room temperature ECAP.
STUDI EQUAL CHANNEL ANGULAR PRESSING (ECAP) SUHU NITROGEN CAIR PADA PADUAN Al-Mg-Si (Al 6061) [A Study On Equal Channel Angular Pressing At Liquid Nitrogen Temperature Of Al – Mg – Si (Al 6061) Alloys] Efendi Mabruri; I Nyoman Gede; Edy Priyanto Utomo
Metalurgi Vol 29, No 3 (2014): Metalurgi Vol.29 NO.3 Desember 2014
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.254 KB) | DOI: 10.14203/metalurgi.v29i3.294

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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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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
PERENCANAAN ALAT PENGERING PADI KAPASITAS 1000 KG/JAM DENGAN MENGGUNAKAN PEMANAS SEKAM PADI I Nyoman Gede; Nita C.V. Monintja; Hengky Luntungan
Jurnal Tekno Mesin Vol. 7 No. 2 (2021)
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Salah satu cara pengolahan hasil pertanian adalah: Proses pengeringan. Proses pengeringan adalah suatu proses pengurangan kadar air sampai batas tertentu sehingga dapat menghambat laju kerusakan hasil pertanian (padi) akibat aktivitas biologis dan kimia. Pengeringan perupakan langkah terakhir dari sederetan operasi, dan hasil pengeringan biasanya siap untuk digunakan.Dari hasil perencanan dan perhitungan, bahwa perencanaan pengering padi dengan system tray dryer merupakan aplikasi dari pengeringan konvensional. Pada temperature pengeringan 40 oc, kecepatan udara 4 m/det dan laju aliran udara panas 26733,615 m3/jam serta kelembaban udara pengerig 0,0379 kg air/kg udara sudah cukup untuk mengeringkan padi 1000 kg selama 6,1 jamKata kunci : Tray dryer, Pengering, Padi.
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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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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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.
PERFORMANSI POMPA AIR DAB TYPE DB-125B YANG DIFUNGSIKAN SEBAGAI TURBIN AIR Adi R. M. Arief; Gerits Dirk Soplanit; 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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The use of water pumps DAB type DB-125 as the impulse turbine functions for Micro Hydro Power Plant Lisrik (PLTMH) is the topic in this research. Water pump is used to suck water and deliver it to a certain height. In this application the water pumps used as turbines where water from a certain height will rotate the impeller pump and produces electricity. The testing is done in the laboratory of mechanical engineering of University of Sam Ratulangi. Turbine is driven by three pumps which are assembled in series and parallel, to get different head and flow (Q). Water flow and load on dinamometer ( ) have been set at the lowest rotation of the load on turbine. For the initial set of water flow Q = 33,5 litres/minute. The results showed that the different H and Q from curve turbine rounds, maximum power is at Q = 40 litres/minute, H = 33,5 m, and n = 910 rpm
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.
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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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.
UNJUK KERJA POMPA AIR SHIMIZU TYPE PS-128 BIT YANG DIFUNGSIKAN SEBAGAI TURBIN AIR Harison B Situmorang; Gerrits D Soplanit; I Nyoman Gede
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 3 No. 1 (2014): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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ABSTRACTUtilization of water pump Shimizu Type PS-128 Bit which functioned as a water turbine for Micro Hydro Power Plant (MHPP) is an effort in the search for alternative energy in a simple and easy in term of manufacturing and assembling. Principally, the water pump is used to suck the water from a lower surface and raise it to a certain height. The basic of working of a pump is the opposite of a water turbine, and therefore can function as reaction water turbine, in which water from a certain height rotate the pump impeller.Testing the water pump Shimizu Type PS-128 Bit as a water turbine is carried out in the Laboratory of Mechanical Engineering University of Sam Ratulangi. The “reaction turbine” is driven by four water pumps which connected in series and parallel. It aims to get different heights (head) and flow rate (Q).Flow rate and the load on the dynamometer (W1) has been determined, as the lowest round “reaction turbine” that is charged with the force (N) certain turbine cannot rotate. So that initial water discharge is determined by Q = 31 liters/minute. Based on the research that has been done that the power generated depends on the rotation, H and Q. The maximum power generated Pm = 12 watt is at Q = 37 liters/minute, H = 18 m, and n = 1080 rpm.Keywords: Pump, Reaction Turbine, Head, Flow rate.
Co-Authors Adi R. M. Arief Alfred Hara Arther Adolof Rantung Desly Theo Daud Bawiling Edy Priyanto Utomo Efendi Mabruri Ferdywanto Parende Gerits Dirk Soplanit Gerrits D Soplanit Hara, Alfred Hardi Gunawan Harison B Situmorang Hengky Luntungan Johanes Sulu Kevin Lorenzo Mabruri, Efendi Meldi Tumetel Michael Rumondor Monintja, Nita C.V. Nita C.V. Monintja Rocky Fernando Laki Rudy Poeng Rumondor, Michael Samuel Alexander Lepar Samuel Alexander Lepar, Samuel Alexander Utomo, Edy Priyanto