Pengaruh Penambahan Langkah Kerja terhadap Unjuk Kerja Motor Bakar

Gunawan, Chandra; Siswanto, Eko; Yuliati, Lilis

doi:10.21776/ub.jrm.2019.010.03.1

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Engine propeller matching adalah menentukan titik kerja propulsi terhadap karakteristik kinerja mesin yang mana data ini diperoleh dari pengujian mesin yang dituangkan dalam data teknik main engine. Karakteristik kinerja mesin dapat dinyatakan dengan parameter hubungan antara kecepatan, torsi, konsumsi bahan bakar spesifik, dan daya keluaran mesin [11,12,13]. Nilai kebaruan dari riset ini adalah aplikasi metoda engine propeller matching untuk menganalisis kelebihan beban dan jatuhnya keluaran daya mesin utama ketika dikopel dengan PTO generator untuk penggerak pembekuan cepat.…”

Section: Pendahuluanunclassified

Analisis Engine Propeller Matching Propulsi Kapal Ikan Tradisional Dengan Pto Generator

Jami'in¹

2022

JRM

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This paper presents an analysis of power take off (PTO) generator connected to main engine and its effects to engine overload and ship speed. The purposes of research is to determine the safe operation of PTO generator by adjusting the ship speed. The PTO generator is a generator coupled with main engine to drive a cooling machine. The analysis of engine propeller matching method is used to determine the working points of ship propulsion coupled with PTO generator. The results of simulation show that the output power of main engine decreases by 8.4% of maximum continuous rating (MCR) point with the maximum speed is 5.4 knots. When it is connected to PTO generator, the output power of main engine does not decrease. It can be operated to MCR point with the maximum speed is 5.1 knots.

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Section: Pendahuluanunclassified

Analisis Engine Propeller Matching Propulsi Kapal Ikan Tradisional Dengan Pto Generator

Jami'in¹

2022

JRM

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“…Dimana Wnet adalah kerja siklus (kJ), Qin adalah panas yang masuk sistem (kJ) dan Qout adalah panas yang keluar sistem. [14] Untuk menghitung besarnya efisiensi thermal diperlukan rumus seperti pada persamaan (5) di bawah ini:…”

Section: Perhitungan Kerja Siklus Efisiensi Thermal Efisiensi Pembaka...unclassified

Studi Komparasi Motor Bakar 6 Tak Dengan Siklus Dua Kali Pengapian Menggunakan Bahan Bakar Pertamax Dan Etanol

Elandi

Siswanto

Widodo

2022

JRM

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The six-stroke combustion engine is a refinement of the four-stroke machine by adding two strokes of the four-stroke combustion engine. The two steps in question are the second compression stroke and the second expansion stroke. The method used is an experimental research method. This study aims to obtain the performance value and exhaust gas emission values for Pertamax and Ethanol fuels on a six-stroke engine. The fuel used is Pertamax fuel with a purity of 100% and Ethanol with a purity of 99.7%. Based on the results of research, analysis, and discussion, the performance of a six-stroke combustion engine with two cycles of ignition with Pertamax and Ethanol fuel is concluded that the average torque of Pertamax fuel is 1.07% higher than Ethanol fuel. The average adequacy of Pertamax fuel is 1.27% higher than Ethanol fuel. The combustion efficiency of the Pertamax fuel six-stroke motor is 1.06% less than ethanol fuel, the cycle work (Wnet) of the Pertamax fuel six-stroke engine is 1.07% higher than that of ethanol fuel, the thermal efficiency (ηth) of the Pertamax fuel six-stroke engine is comparable to that of ethanol fuel while the fuel efficiency (ηf) of the six-stroke ethanol fuel engine is 1.09% higher than the pertamax fuel. The exhaust gas emission test results for Pertamax fuel CO are 21.2% higher than ethanol fuel. CO2 emissions from Pertamax fuel are 1.56% less than ethanol fuel, and HC exhaust emissions from Pertamax fuels are 3.7% higher than ethanol fuels.

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“…(3) Dimana FC adalah konsumsi bahan bakar (kg/jam), b adalah volume bahan bakar (ml), t adalah waktu konsumsi bahan bakar (s) dan ρ adalah massa jenis bahan bakar (kg/m 3 ) dimana massa jenis bahan bakar pertamax adalah 0,745 x 10 -3 kg/ml. [13]…”

Section: Perhitungan Torsi Daya Dan Konsumsi Bahan Bakarunclassified

Studi Komparasi Performa Motor Bakar 4 Tak Karburator dan Motor Bakar 6 Tak Mub-2 Karburator Berbahan Bakar Pertamax

Nurdiansyah

Soeparman

Siswanto

2021

JRM

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This paper describes the comparison of the performance of a 4 stroke carburetor motorbike with the MUB-2 six-stroke engine with additional combustion duration and two working strokes. The increase in combustion duration aims to re-burn combustible species that have not been completely burned in the first combustion. This study used a 4 stroke motor with a capacity of 125 cc and then modified it into a 6 stroke motorbike with twice the duration of combustion. The observed local atmospheric conditions at a relative humidity of about 76% RH, and the ambient temperature and pressure were around 24 ° C and 101.32kPa, respectively. Implementation of data retrieval with crankshaft rotation at 600 rpm intervals from 2400 rpm to 7200 rpm, with a braking load of 5 - 10 kg. The 6 stroke MUB-2 motor shows 8% effective power, 7.8% torque, 1.4% combustion efficiency, 4,3% duty cycle, 2% thermal efficiency and 7% greater fuel efficiency than conventional 4 stroke engines . The fuel consumption rate of the MUB-2 6-stroke engine is 43.5% lower than that of the conventional 4-stroke engine. This means that the performance on the 6 stroke MUB-2 motorbike is higher than the conventional 4 stroke motorbike.

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Pengaruh Penambahan Langkah Kerja terhadap Unjuk Kerja Motor Bakar

Cited by 3 publications

References 6 publications

Analisis Engine Propeller Matching Propulsi Kapal Ikan Tradisional Dengan Pto Generator

Analisis Engine Propeller Matching Propulsi Kapal Ikan Tradisional Dengan Pto Generator

Studi Komparasi Motor Bakar 6 Tak Dengan Siklus Dua Kali Pengapian Menggunakan Bahan Bakar Pertamax Dan Etanol

Studi Komparasi Performa Motor Bakar 4 Tak Karburator dan Motor Bakar 6 Tak Mub-2 Karburator Berbahan Bakar Pertamax

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