Investigation of Exhaust Emissions Combustion Characteristics in Single Spark Ignition-Engine Matic with Butanol-Gasoline Mixture

Abstract

Butanol as a fuel has a high oxygen content, so the combustion process will be more friendly to the environment. In this study, butanol will be mixed with RON-90 gasoline with a capacity of 5% (B5); 7%(B7); 10%(B10); 12%(B12); 15%(B15) and 18%(B18). The engine used is an automatic transmission with a capacity of 109.5cc with a compression ratio of 9.5:1. The test equipment for engine performance and exhaust emissions is the 50L BRT Super-Dyno and EPSG4 Gas Analyzer. The results showed that using B18 fuel for CO exhaust emissions decreased by 44% at an engine speed of 6000rpm. CO2 exhaust emissions have decreased by 47% at 8000rpm engine speed. HC exhaust emissions have decreased by 28% at 9000rpm engine speed. In contrast to NOx emissions, which increased by 22% at 9000rpm engine speed, this was due to the increasing temperature in the combustion chamber.

Efek Blending Bahan Bakar Terbarukan Butanol 5% Pada Pertamax Terhadap Performa Mesin Bensin Efi 150 Cc

“…Hal ini karena kandungan oksigen butanol tinggi dibanding gasoline. Oksigen butanol meningkatkan kandungan oksigen dalam silinder dan proses pembakaran lebih sempurna sehingga performa mesin meningkat dengan penggunaan bahan bakar yang minimum [8]. Syarifudin, dkk., (2019) [9] juga meneliti penggunaan butanol dengan pada mesin diesel.…”

“…Semakin tinggi tekanan yang dapat ditahan bahan bakar semakin tinggi langkah piston dan campuran bahan bakar dan udara terkompresi meningkat sehingga ledakan lebih besar dan gaya dorong pada piston lebih tinggi. Hal ini menghasilkan torsi mesin yang tinggi pula [10]; [11] [12]; [13] IV. HASIL DAN PEMBAHASAN A. Torsi Mesin Pengujian torsi mesin menggunakan butanol 5% (P95B5) yang dicampur pada pertamax.…”