Combustion characteristics of oxygenated fuels Ethanol-and Butanol-gasoline fuel blends, and their impact on performance, emissions and Soot Index

Anselmi, Patricia; Matrat, Mickaël; Starck, Laurie; Duffour, Florence

doi:10.4271/2019-01-2307

Cited by 6 publications

(9 citation statements)

References 37 publications

(68 reference statements)

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“…With this condition, it is possible that the fuels with increased HOV will exhibit an even higher difference in ITE compared to gasoline. Previous studies support the decrease of CO and HC emissions in DISI engines, as the oxygen content of the fuel increases [5,32,39,40]. Sileghem et al also showed decreased levels of NOx emissions compared to gasoline [15].…”

Section: Discussionmentioning

confidence: 72%

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The Effect of Pure Oxygenated Biofuels on Efficiency and Emissions in a Gasoline Optimised DISI Engine

et al. 2021

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The negative impact of transport on climate has led to incentives to increase the amount of renewable fuels used in internal combustion engines (ICEs). Oxygenated, liquid biofuels are promising alternatives, as they exhibit similar combustion behaviour to gasoline. In this article, the effect of the different biofuels on engine efficiency, combustion propagation and emissions of a gasoline-optimised direct injected spark ignited (DISI) engine were evaluated through engine experiments. The experiments were performed without any engine hardware modifications. The investigated fuels are gasoline, four alcohols (methanol, ethanol, n-butanol and iso-butanol) and one ether (MTBE). All fuels were tested at two speed sweeps at low and mid load conditions, and a spark timing sweep at low load conditions. The oxygenated biofuels exhibit increased efficiencies, even at non-knock-limited conditions. At lower loads, the oxygenated fuels decrease CO, HC and NOx emissions. However, at mid load conditions, decreased volatility of the alcohols leads to increased emissions due to fuel impingement effects. Methanol exhibited the highest efficiencies and significantly increased burn rates compared to the other fuels. Gasoline exhibited the lowest level of PN and PM emissions. N-butanol and iso-butanol show significantly increased levels of particle emissions compared to the other fuels.

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Section: Discussionmentioning

confidence: 72%

“…It has also been shown that biofuels may lead to decreased emissions from SI engines, such as carbon monoxide (CO) and hydrocarbons (HC) [5,32,39,40]. Masum et al showed that CO and HC emissions decreased noticeably even at low levels of ethanol and methanol (20%) in the fuel, while a slight decrease was seen for 20% iso-butanol [32].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Pure Oxygenated Biofuels on Efficiency and Emissions in a Gasoline Optimised DISI Engine

et al. 2021

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“…Anselmi et al [14] reported decreasing particle number (PN) emissions with increasing levels of ethanol in fuel, but the same trend was not exhibited with increasing levels of butanol. These results are supported by Karavalakis et al [13], who observed decreased levels of PN emissions with higher concentrations of ethanol, but no clear trend as the iso-butanol concentration was increased.…”

Section: Introductionmentioning

confidence: 99%

“…The research on DISI engines shows that increasing the concentration of oxygenated fuels in the fuel blend increases the number of smaller particles, with particle diameters of around 10 nm. Increased levels of smaller particles have been reported for ethanol blends [11][12][13][14], pure ethanol [15,16], methanol blends [17,18], and butanol blends [19,20].…”

Section: Introductionmentioning

confidence: 99%

Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine

2021

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The utilisation of internal combustion engines is one of the main causes of particle emissions in urban areas. As the interest for the utilisation of biofuels increases, it is important to understand their effect on particle number emissions. In this paper, the particle size distribution and the particle number emissions from a gasoline-optimised direct-injected spark-ignited (DISI) engine are investigated. The effects of five different biofuel alternatives on these emissions were evaluated and compared to gasoline. The utilisation of the high-resolution, high-temperature ELPI+ enabled undiluted measurements of the particle size distribution down to 6 nm, without extensive cooling of the engine exhaust. Contrary to other studies, the results show that the particle number emissions for the three measured cut-off sizes (23, 10 and 7 nm) increased with the utilisation of oxygenated biofuels. The results indicate that the decreased volatility and energy density of the alcohols has a more significant impact on the particle formation in a DISI engine than the increased oxygen content of these fuels.

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“…These gases cause the depletion of ozone layers which leads to global warming. The impact of worldwide warming is felt each by animals and Human [7,8]. Worldwide, air pollution contributes a part of 6.7% of all deaths.…”

Section: Introductionmentioning

confidence: 99%

Emissions characteristics and impact on the Environment for LPG And Gasoline in Spark Ignition Engine

Endo

Hozumi

2020

JSM

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Concern on pollution continues to receive a good deal of world interest because of its adverse impacts on human health and by extension the environment. Recent studies reportable the necessary correlations between pollution and bound diseases as well as an asthma attack, breath distortion, inflammatory disease, chest pain, nausea, respiratory disorder and carcinoma, acute health effects embody eye irritation, headache. The globe Health Organization (WHO) states that two.4 million individuals die yearly from causes directly thanks to pollution. The target of this study is concentrated on the emission analysis completely different ratios of two fuels: LPG (propane) and gasoline (petrol) under different loadings. The elements employed in the analysis contains 4stroke, spark ignition LOMBARDINI LGA 226, Gas parse unit (Techno test (T156/D3)), Gas Flow Meter that measures the LPG. The fuels, gasoline in a liter (liters) and LPG in a liter (liters) also were used to assess their impacts on the exhaust gas emission released. The results are unconcealed that particle number concentration, carbon monoxide (CO) increased because the engine loading will increase in gasoline (fuel). Using LPG, the carbon monoxide (CO) concentration level was a less, significant reduction in exhaust emissions, however the high temperature in the environment than fuel (gasoline) on engine loading. The engine, powered by LPG fuel, showed improved engine performance in many aspects including overall efficiency, fuel economy and emission characteristics that are much lower than gasoline fuel.

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Combustion characteristics of oxygenated fuels Ethanol-and Butanol-gasoline fuel blends, and their impact on performance, emissions and Soot Index

Cited by 6 publications

References 37 publications

The Effect of Pure Oxygenated Biofuels on Efficiency and Emissions in a Gasoline Optimised DISI Engine

The Effect of Pure Oxygenated Biofuels on Efficiency and Emissions in a Gasoline Optimised DISI Engine

Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine

Emissions characteristics and impact on the Environment for LPG And Gasoline in Spark Ignition Engine

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