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All Journal Turbo : Jurnal Program Studi Teknik Mesin
Sanjaya, Firman Lukman
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Mechanical Engineering

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Brake spesific fuel consumption, brake thermal efficiensy, dan emisi gas buang mesin bensin EFI dengan sistem EGR berbahan bakar premium dan butanol Sanjaya, Firman Lukman; Syaiful, Syaiful; Syarifudin, Syarifudin
TURBO [Tulisan Riset Berbasis Online] Vol 9, No 2 (2020): Jurnal Turbo Desember 2020
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v9i2.1178

Abstract

The increase in vehicle volume causes an increase in the use of gasoline fuel and air pollution. Therefore, alternative fuels such as butanol are one of the solutions to overcome this problem. Butanol has a high octane value and oxygen content so that the combustion process is more perfect and reduces exhaust emissions. The use of butanol is expected to improve engine performance and reduce exhaust emissions. The purpose of this study was to observe the effect of butanol on gasoline engines with the EGR system on Brake Specific Fuel Consumption (BSFC), Brake Thermal Efficiency (BTE), and exhaust emissions. Testing uses a Toyota Kijang 7K gasoline engine with an EFI fuel system. The percentage of butanol used is 5%, 10%, 15% in the condition without EGR, hot EGR, and cold EGR. The test is carried out at a fixed engine rotation speed of 2500 rpm. Retrieval of engine performance data using a dynamometer while the exhaust emissions using the GA analyzer. The test results showed the addition of butanol increased the BSFC value by 0.9% and BTE by 2%. However, a decrease occurred in CO emissions by 74.2% and HC by 33.6% compared to pure premium. The use of hot EGR decreased BSFC by 19.3% and BTE by 23.9%. The highest CO emissions were 3.23% while the highest HC emissions of 259 ppm occurred in the use of cold EGR.Keywords : butanol, EGR, BSFC, BTE, exhaust gas emissions
Co-Authors Fatkhurrozak, Faqih Köten, Hasan Sibagariang, Yohanes Syaiful . Syarifudin Syarifudin Usman, M. Khumaidi