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Jurnal Poros Teknik Mesin Unsrat
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : 28088166     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Poros Teknik Mesin Unsrat (JPTMU) merupakan jurnal yang diterbitkan oleh Jurusan Teknik Mesin Fakultas Teknik Universitas Sam Ratulangi dengan periode penulisan dua terbitan per tahun pada bulan Juli dan November. Artikel yang diterbitkan mencakup bidang Teknik Mesin dan Teknik Industri.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 139 Documents
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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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Abstract

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.
APLIKASI METODE ECONOMIC ORDER QUANTITY (EOQ) PADA PERSEDIAAN BBM DI PT. SARANA SAMUDERA PACIFIC BITUNG Veyro E.L Lumempouw; Hengky Luntungan; Charles Chevy Punuhsingon
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

Supplies have an important role in every company. Supplies would make the company running well. As well as supplies must be provided continually so that the company can operating well and the consumer demand would be fulfilled.The purpose of this research is to determine the model and to design the supplies of diesel fuel at PT. Sarana Samudera Pacific Bitung. Using the EOQ (Economic Order Quantity) formula could minimize the total cost or the overall cost of supplies at the company.From the calculation of the total cost of supplies using the formula, we got a result that the overall cost is Rp. 2.395.785.138,-. The company’s calculation is Rp. 2.403.022.632,-, which means company can save Rp. 7.237.494. It can be concluded that using EOQ formula can minimize the total cost at PT. Sarana Samudera Pacific.Key words: Supplies, Diesel Fuel, EOQ.
ANALISIS SIFAT MEKANIK MATERIAL KOMPOSIT DARI SERAT SABUT KELAPA Jonathan . Oroh; Frans P Sappu; Romels Cresano Lumintang
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 uses coco fiber having straight fiber orientation. Different volume fraction with alkali (NaOH) treatment for two hours and without treatment have applied in this work. This composite was manufactured by molding where Polyester BQTN 157 was used as matrix. Bending test was performed based on ASTM D 6110 standard. The aim of this research is to obtain the optimum bending strength of coco fiber composite for volume fraction of 0 % fiber and 100% resin, 10% fiber and 90% resin, 20% fiber and 80%resin, 30% fiber and 70% resin, 40% fiber and 60% resin, 50% fiber and 50% resin, 60% fiber and 40% resin, 70% fiber and 30% resin with alkali treatment for two hours and without treatment, and find the result of fracture at the specimens. Based on the test results, the mean bending modulus of elasticity for specimens without treatment is 619047.619 MPa. This value was obtained at volume fraction of 40% fiber and 60% resin. On the other hand, the mean bending modulus of elasticity for specimens with alkali treatment is 4893.410928 MPa. This value was obtained at volume fraction of 30% fiber and 70% resin. Finally, based on the observation, the type of fracture occurring on specimens is broken fiber.
PERHITUNGAN ONGKOS PRODUKSI MESIN PENCACAH RUMPUT PAKAN TERNAK TIPE AMP 1000 Arthur G. D. Letelay; Rudy Poeng; Tertius V. Y. 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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Abstract

In a machinery industry, to know the exact production cost of machine or machine component is essential. Using the data of production cost, the selling price of the product or the value of product making project can be calculated, then the profit can be determined. This research aim to calculate the total production cost of grass chopper machine, then using the result to determine the selling price and the profit. From the performed calculation we obtain that the selling price of the machine is Rp 9.234.016 per unit. This price is cheaper dan market price which has the value of Rp 13.300.000 per unit. Therefore, the net profit of this product is Rp. 1.995.000.
PERENCANAAN PROSES CAD PRODUK BERKEPALA BAUT UNTUK APLIKASI CAM DENGAN MENERAPKAN METODE TO CORNER Henri Viki Barapa; Rudy Poeng; Romels Cresano Apelles Lumintang
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

Computer is not just, a replacement for a typewriter, but also in the scope of graphic design, process data, animated recording is including in the art Computer Aided Design (CAD). Results of product design using CAD can be applied in Computer Aided Manufacturing (CAM) to simulate the machining process to work optimally, in using a computer to do programming, directing and controlling the production equipment based on the design of the product. This research is a study on how to simulate the process of CAD in shaping head bolt using AutoCAD software as a planning process. The purpose of this study is to plan  machining processes using shaping machine to get the CAD drawings as information for CAM applications. The results of this planning, the product is used as an object shaped head bolts (size 50x15 mm, and the size of the coordinates information obtained from motion trajectories Freis chisel upright in processing these products can be geomeotik code data for CAM applications by applying To Corner.
ANALISIS PENGARUH DIMENSI KOMPONEN ALAT ANGKAT KENDARAAN NIAGA TERHADAP BIAYA PRODUKSI Yaroso Y. Mirino; Fentje Abdul Rauf; Rudy Poeng
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

In machining industry it is essential to know the cost of the product. By knowing the price of the product the profil could be calculated. Hoisting equipment is very helpful in car maintenance or repair, the purpose of this study is to measure working time, analyze the cost of the production of a 2 ton car hoisting equipment manufactured by students of mechanical Engineering University of Sam Ratulangi.   From the results of the analysis, prices lifting equipment sales in the commercial vehicle production Mechanical Engineering student Sam Ratulangi University, is Rp 1,388,371 per unit. This shows that the price obtained is still less than the price of one unit of a triple lift lifting equipment types in the market internet, Rp. 1,745,145 per unit.
PERENCANAAN TURBIN AIR MIKRO HIDRO JENIS PELTON UNTUK PEMBANGKIT LISTRIK DI DESA KALI KECAMATAN PINELENG DENGAN HEAD 12 METER Ceri Steward Poea; Gerits Dirk Soplanit; Jotje Rantung
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

The utilization of water as a natural resource of renewable energy for power plant is one of the alternative solutions to replace the need for fossil fuels. there is a waterfall on the river which through Kali village in Pineleng district, From observations and the calculation speed of the flow by using buoys, and river cross-sectional area obtained the total river debit Q = 0.323 m3 / s. From the measurements is also obtained high fall the waterfall H = 12 m. Based on the existing height and debit of the water fall the major dimensions of a water turbine Pelton Micro Hydro type as the driving power generator was planned. The results of calculations for effective head = 12 m, with a water debit that is used to drive the runners Q = 0.06 m3/s, gained power generated by 4.0 kW. By the data is planned the main dimensions of micro turbine Pelton outer runner diameter Do = 380.8 mm, the diameter of the circle pin D = 202 ​​mm, number of bowls z = 19 with 1 nozzle, and a shaft diameter ds = 45 mm. Key Word: Kali Village Pineleng, Pelton Water Turbin
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

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