Topic
Spark-ignition engine
About: Spark-ignition engine is a research topic. Over the lifetime, 4352 publications have been published within this topic receiving 66550 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, the potential of ammonia as a fuel for spark-ignition engines is discussed, thanks to the studies carried out so far and to point out directions for future work.
Abstract: Faced with the problem of reducing greenhouse gas emissions and transitioning toward a greater use of renewable energies, ammonia, as an energy carrier, is increasingly seen as a potential ‘green’ fuel for transportation, in particular marine applications. However, its combustion characteristics (high minimum ignition energy and auto-ignition temperature, low combustion speed in comparison to usual hydrocarbon fuels) are drawbacks that have so far limited its use. Due to the evolution of different pollutant standards for road transportation, Spark-Ignition engines and thus the combustion process itself have been subjected to many changes over the last 20 years (e.g., gasoline direct injection, downsizing). The objective of this article is to discuss the potential of ammonia as a fuel for spark-ignition engines thanks to the studies carried out so far and to point out directions for future work.
53 citations
01 Jul 2009
TL;DR: In this article, an experimental investigation was performed on the combustion performance, reduction characteristics of exhaust emissions, and engine performance of a spark ignition engine fuelled with bio-diesel fuel.
Abstract: An experimental investigation was performed on the combustion performance, reduction characteristics of exhaust emissions, and engine performance of a spark ignition engine fuelled with bio...
53 citations
TL;DR: In this paper, experiments were conducted on a four-cylinder spark-ignition engine to investigate the effects of iso-butanol additives in ethanol-gasoline blend on fuel properties, performance and emission characteristics of a SI engine.
53 citations
TL;DR: In this paper, an operating regime was identified in which particulates and NO{sub x} emissions could be reduced simultaneously when the concentration of intake air oxygen, fueling rate, and injection timing were optimized.
Abstract: This paper discusses operational and emissions results obtained with a locomotive (two-cylinder, EMD 567B) research diesel engine when oxygen-enriched combustion air is used. An operating regime was identified in which particulates and NO{sub x} could be reduced simultaneously when the concentration of intake air oxygen, fueling rate, and injection timing were optimized. Using oxygen from an external source, particulates were reduced by approximately 60% and NO{sub x} emissions were reduced by 15--20% with the optimal operating strategy. Higher gross power, lower peak cylinder pressures, and lower brake-specific fuel consumption were also observed. Gross power was increased by about 15--20% at base peak combustion pressure, and gross brake-specific fuel consumption was decreased by 2--10% with load. The effect of achieving oxygen enrichment by means of an air separation membrane is beyond the scope of the current study.
53 citations
TL;DR: A theory based upon a concept of turbulent flame propagation has been developed and has resulted in the calculation of pressure versus crank angle and temperature versus both crank angles and chamber position as a function of various design parameters as mentioned in this paper.
Abstract: A theory based upon a concept of turbulent flame propagation has been developed and has resulted in the calculation of pressure versus crank angle and temperature versus both crank angle and chamber position as a function of various design parameters. Ultimately, the theory would result in the calculation of NO concentration. Turbulent mixing occurs to a significant extent throughout the chamber especially for larger turbulent eddy sizes. After burning is completed, the mixing tends to uniformize the temperature distribution somewhat.
52 citations