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DOI	10.1177/1468087420931718
	Turbocharged spark-ignition engine performance prediction in various inlet charged air temperatures fueled with gasoline–ethanol blends
	Farzam R.; Jafari B.; Kalaki F.
发表日期	2020
ISSN	14680874
英文摘要	In this research, the effect of alternative fuels and the inlet charged air temperature is numerically investigated on the performance of a turbocharged spark-ignition engine. For this purpose, a one-dimensional engine and turbocharger model is created in an engine simulation and performance analysis software and validated with former experimental results. Then, the model is run with four fuel types, including two gasoline types with different octane numbers and two ethanol–gasoline blend fuels—E25 and E85. In each case, the inlet charged air temperature is changed from cold to hot condition and performance characteristics such as the spark advance timing, brake torque, brake-specific fuel consumption and thermal efficiency, emissions and the ignition delay and combustion duration are obtained from simulation results. The results illustrate that by decreasing the inlet charged air temperature, the spark timing is more advanced due to less knock and the brake torque increases. Also, the brake-specific fuel consumption and the brake NOx and CO2 decrease and thermal efficiency increases in all fuel types. The results also demonstrate that in higher ethanol percent in blend fuels, all engine performance characteristics improve except brake-specific fuel consumption; as changing the fuel at constant fuel-to-air equivalence ratio from E25 to E85 in various revolutions per minute causes a 5.8% increase in the brake torque, 1.06% increase in the thermal efficiency, 43% and 3.9% decrease in the brake NOx and CO2 and 5.8 °CA decrease in the combustion duration, on average; while the brake-specific fuel consumption and the peak pressure increase 29% and 20%, respectively. © IMechE 2020.
英文关键词	charged air temperature; ethanol–gasoline blend; knock; performance improvement; Spark-ignition turbocharged engine
scopus关键词	Alternative fuels; Atmospheric temperature; Carbon dioxide; Computer software; Efficiency; Engines; Ethanol; Ethanol fuels; Gasoline; Ignition; Nitrogen oxides; Brake specific fuel consumption; Combustion duration; Engine performance; Equivalence ratios; Performance analysis; Performance characteristics; Revolutions per minutes; Thermal efficiency; Brakes
来源期刊	International Journal of Engine Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177049
作者单位	Mechanical Engineering Department, Sharif University of Technology, Tehran, Iran; Faculty of Engineering Modern Technologies, Amol University of Special Modern Technologies (AUSMT), Amol, Iran
推荐引用方式 GB/T 7714	Farzam R.,Jafari B.,Kalaki F.. Turbocharged spark-ignition engine performance prediction in various inlet charged air temperatures fueled with gasoline–ethanol blends[J],2020.
APA	Farzam R.,Jafari B.,&Kalaki F..(2020).Turbocharged spark-ignition engine performance prediction in various inlet charged air temperatures fueled with gasoline–ethanol blends.International Journal of Engine Research.
MLA	Farzam R.,et al."Turbocharged spark-ignition engine performance prediction in various inlet charged air temperatures fueled with gasoline–ethanol blends".International Journal of Engine Research (2020).