气候变化领域集成服务门户(CCPortal): Optimization of simultaneous reduction of NO and soot by using simulated-exhaust gas recirculation (CO2 + N2) in compression igntion engine under early combustion conditions

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DOI	10.1002/ep.13568
	Optimization of simultaneous reduction of NO and soot by using simulated-exhaust gas recirculation (CO2 + N2) in compression igntion engine under early combustion conditions
	Min S.H.; Suh H.K.
发表日期	2020
ISSN	19447442
英文摘要	The objective of this study is to investigate the effect of CO2 mole fraction by simulated-exhaust gas recirculation (EGR) on the simultaneous reduction of exhaust emission in CI engine, and to find the optimal operating conditions.For the better expression of the actual EGR, the different CO2 mole fractions from 0% to 20% were applied for the simulated-EGR. The CO2 mole fraction by simulated-EGR was changed in the initial air in steps of 5% from 0% to 20% in the cylinder. The N2 mole fraction in the initial air was also changed according to the CO2 mole fraction, and the O2 mole fraction was fixed by 16.2% due to the same overall equivalence ratio.When the CO2 mole fraction by simulated-EGR increased by 5%, the peak cylinder pressure was decreased by about −1.5% and the indicated specific nitrogen oxide value was also reduced from −4.9% to −48.8% because the ignition delay was longer by the higher specific heat of CO2 than N2, it induced to suppress the rise of cylinder temperature. In addition, when the start of energizing timing was advanced until BTDC 23 deg, the ISSoot value was decreased because the proportion of premixed combustion was increased. © 2020 American Institute of Chemical Engineers
英文关键词	CO2 mole fraction; fuel mass fraction; NO emission; simulated-EGR; soot emission
scopus关键词	Carbon dioxide; Combustion; Gases; Nitrogen oxides; Specific heat; Combustion condition; Cylinder temperatures; Exhaust emission; Exhaust gas recirculation (EGR); Ignition delays; Peak cylinder pressures; Premixed combustion; Simultaneous reduction; Exhaust gas recirculation
来源期刊	Environmental Progress and Sustainable Energy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177032
作者单位	Graduate School of Mechanical Engineering, Kongju National University, Cheonan, South Korea; Division of Mechanical & Automotive Engineering, Kongju National University, Cheonan, South Korea
推荐引用方式 GB/T 7714	Min S.H.,Suh H.K.. Optimization of simultaneous reduction of NO and soot by using simulated-exhaust gas recirculation (CO2 + N2) in compression igntion engine under early combustion conditions[J],2020.
APA	Min S.H.,&Suh H.K..(2020).Optimization of simultaneous reduction of NO and soot by using simulated-exhaust gas recirculation (CO2 + N2) in compression igntion engine under early combustion conditions.Environmental Progress and Sustainable Energy.
MLA	Min S.H.,et al."Optimization of simultaneous reduction of NO and soot by using simulated-exhaust gas recirculation (CO2 + N2) in compression igntion engine under early combustion conditions".Environmental Progress and Sustainable Energy (2020).