In this study, a four-stroke, naturally aspirated, single-cylinder, spark ignition engine was operated with neat gasoline fuel. In-cylinder pressure, performance, and emission values were obtained at full load and 2400-r/min constant engine speed. Using these values, a single-dimensional theoretical model was calibrated. A Kistler spark plug–type pressure sensor was used to obtain in-cylinder pressure. After validation of this single-dimensional theoretical model obtained by the help of a commercial engine analysis software (AVL-Boost), different levels of ethanol addition (2.5%, 5%, 10%, 15%, and 20%) into gasoline were analyzed and compared with neat gasoline fueled conditions. According to obtained results, NO_x emissions increased with incremental amount of ethanol. The CO and total hydrocarbons emissions decreased; however, they can be controlled using after-treatment systems such as three-way catalyst.

在这项研究中，使用纯汽油燃料运行的四冲程自然吸气单缸火花点火发动机。在满载和2400r / min恒定发动机转速下获得缸内压力，性能和排放值。使用这些值，对一维理论模型进行了校准。奇石乐火花塞式压力传感器用于获得缸内压力。验证通过商业发动机分析软件（AVL-Boost）获得的一维理论模型后，向汽油中添加了不同含量的乙醇（2.5％，5％，10％，15％和20％）分析并与纯汽油燃料条件进行比较。根据获得的结果，NO _x排放随着乙醇量的增加而增加。一氧化碳和总碳氢化合物排放量减少；但是，可以使用三元催化器等后处理系统对其进行控制。