Abstract
Subtitution of the fuel type in the gasoline engine will change the setting The engine parameters as well as modify it to minimize engine performance degradation And increased exhaust emissions. Utilization of ethanol (85% vol.) - gasoline (15% vol.) The combination (E-85) for the gasoline engine requires some machine modifications and setting parameters due to differences in properties and characters between ethanol and gasoline. This study aims to test the effect of ignition timing and compression ratio on the performance of the engine and emission gas emissions. Ignition time varies between 16-24 Before Top Dead Center (BTDC) d. While the compression ratio variation consists of 11 (standart); 12, 12.5 and 13: 1. It was found that advancing the ignition time range 16 o -24 o BDTC with 13: 1 compression ratio can increase the performance of torque, bmep, and thermal efficiency respectively 7.94%, 5, 82% and 1.6% respectively, and a decrease of emissions of co and hc respectively 56.6% and 0.6% when compared with the performance of standard gasoline-fueled engines (E0).
Highlights
Subtitution of the fuel type in the gasoline engine will change the setting The engine parameters as well as modify it to minimize engine performance degradation And increased exhaust emissions
Palaboran et all [10] do research conducted by mapping the injection duration at a high compression ratio
The results showed increased torque, power and Beam Mean Efective Pressure (BMEP) when compression ratio increased
Summary
Energy policies around the world to reduce the emissions and greenhouse effect caused by fossil fuel combustion remains a concern to researchers. Alternative fuels, as defined by Energy ACT Policy 1992 (EPACT), including alcohol (Biomethanol, bioethanol and others), natural gas, Liquified petroleum gas, hydrogen, coal derived liquidmFuel, biofuels (including biodiesel, synthesis gas and others), And electricity This fuel is used wordwide in a various stationary and mobile applications [1]. Many researchers who have conducted experiments to determine the effect of ethanol on the torque and power of engines have reported that ethanol blending improves these performance parameters [7]–[9]. Giroldo et al [7], in their experiments with E25 (75% gasoline – 25% ethanol), found 5.7% and 6.2% increases in the peak values of the engine power and torque, respectively. It was because ethanol had lower heating value than that of gasoline
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