Abstract
Nowadays, two main deals of researchers in different fields of industries are emissions and fuel consumption. The political turmoil of crude oil besides stricter environmental laws in the world tends researchers to find novel ways for fuel consumption and emissions reduction. Using Ethanol-Gasoline blend as fuel in spark ignition engines is considered as a promising idea to achieve this goal for internal combustion engines industries. Providing a model to investigate the performance of Ethanol-Gasoline fueled engine in different operating conditions is still needed to reduce experimental test costs. In this study, a thermodynamic model of ethanol-gasoline fueled spark ignition engine is provided and the effects of operating conditions on engine performance are investigated in detail after validating simulation results via experimental data. Results show the provided model generates reliable data of engine performance in the full range of fuel composition, from pure ethanol to pure gasoline. In addition, studied engine produces maximum power besides best fuel consumption when it is run at 3000 rates per minute. Also, the best performance is achieved with E-45 composition while NOx emission raise 60 percent in comparison to pure gasoline. So, it can be introduced as design point for studied engine.
Highlights
Nowadays, two main deals of researchers in different fields of industries are emissions and fuel consumption
Provided model is calibrated and its results is validated via experimental data, the model is used to investigate the effects of engine inlet parameters such as engine speed, equivalence ratio and the proportion of ethanol in fuel, on performance and emissions and the design point of each study is introduced due to engine best performance
To investigate the effect of fuel composition, it is changed from E-0, pure gasoline, to E-100, pure ethanol
Summary
Engine performance can be evaluated by separately investigating mass and energy flows of each component [24]. The most important correlations used in simulator model is divided into two subsections namely, component and combustion simulations
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