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.
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TL;DR: This paper examines the cycle-to-cycle variations of peak pressure pmax and peak pressure angle αpmax in a four-cylinder spark ignition engine for three different spark advance angles to show that depending on the spark advance angle, there are significant differences in the fluctuations ofpmax and αPMax.
Abstract: In this paper we analyze the cycle-to-cycle variations of peak pressure pmax and peak pressure angle αpmax in a four-cylinder spark ignition engine. We examine the experimental time series of pmax and αpmax for three different spark advance angles. Us- ing standard statistical techniques such as return maps and histograms we show that depending on the spark advance angle, there are significant differences in the fluctuations of pmax and αpmax. We also calculate the multiscale entropy of the various time series to esti- mate the effect of randomness in these fluctuations. Finally, we explain how the information on both pmax and αpmax can be used to develop optimal strategies for controlling the combustion process and improving engine performance.
39 citations
TL;DR: In this paper, an experimental and numerical study of a turbocharged ethanol engine operating with hydrogen enrichment at stoichiometric conditions under boosted conditions was carried out and it was concluded that hydrogen addition allowed spark ignition engines to achieve lower brake specific energy consumption, better performance, and lower emissions.
39 citations
TL;DR: In this paper, the effects of hydrogen addition on the combustion and emission characteristics of a spark-ignition ABE engine under lean-burn conditions are investigated, and the results show that adding hydrogen can increase the maximum cylinder temperature and pressure, decrease the flame development and propagation duration of the hydrogen/ABE dual-fuel SI engine.
39 citations
TL;DR: In this article, an existing methodology for estimating compression ratio based on the motored in-cylinder pressure trace was improved in order to ensure good accuracy with reduced computational effort, and a new procedure was developed for modeling blow-by rates.
39 citations
01 Jan 2016
TL;DR: In this article, the authors discussed the potential of hydrogen fuel for internal combustion engines and highlighted the technical features of hydrogen supplementation and the potential for blended fuels with hydrogen fuel, and the broad differences between the conventional engine and the hydrogen-fueled engine are discussed.
Abstract: Use of hydrogen as a fuel for internal combustion engines has been the topic of research for over a century. The earlier efforts were sporadic and mainly confined to the laboratory. At present, there is a renewed spate of interest in hydrogen fuel because of its ability to provide long-term solutions to the energy–environment crises. There have been numerous studies of the hydrogen engine in several parts of the world. It is beyond the scope of this chapter to discuss the efforts and attainments of all these efforts. Technical solutions have already been provided by several researchers, industries, and government organizations to counter the characteristic problems leading to preignition, backfire, rough combustion, and high rate of pressure rise. Modest efforts have been made in this chapter to bring out the technological route of operating both the spark ignition (SI) and compression ignition engines with hydrogen fuel to obtain optimum performance and low exhaust emission characteristics without any undesirable combustion phenomena. As far as the SI engines are concerned, fuel induction techniques form the most critical part of system development. Design features of fuel induction techniques for SI engines are discussed for an optimum engine configuration. The technical features of hydrogen supplementation and the potential of blended fuels with hydrogen are also highlighted. The broad differences between the conventional engine and the hydrogen-fueled engine are discussed. Last but not the least, this chapter also highlights the future outlook and market potential of the hydrogen-fueled engine at present and analyses the emerging trend toward its penetration in the market.
39 citations