Investigation of compression ratio and fuel effect on combustion and PM emissions in a DISI engine

T. Lattimore; Martin Herreros; H. Xu; S. Shuai

doi:10.1016/j.fuel.2015.10.044

Investigation of compression ratio and fuel effect on combustion and PM emissions in a DISI engine

T. Lattimore, Martin Herreros, H. Xu, S. Shuai

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Abstract

Oxygenated fuel components such as the alcohols of 1-butanol and ethanol are well-known for their potential to improve engine combustion and PM emissions, and these particular fuels are receiving ever greater attention due to their renewable nature giving them great CO2 emission reduction potential. This paper investigates the effect of compression ratio and fuel properties on combustion, gaseous emissions and PM emissions of an experimental single-cylinder direct injection spark ignition (DISI) engine. The tests were carried out at an engine load of 8.5 bar, at various compression ratios between 10.7 and 11.5, with Bu20 (20%vol 1-butanol in gasoline) and E20 (20%vol ethanol in gasoline) fuel blends along with a reference fuel of gasoline. The results show that 1-butanol and ethanol addition to gasoline is effective to advance the MFB50 point and shorten the combustion duration. 1-butanol addition to gasoline is effective to reduce PM number emissions, while NOx reduction is the main benefit of ethanol addition. It is concluded that synergies between compression ratio and alcohol addition to gasoline enable to simultaneously control gaseous and particulate matter emissions while improving fuel economy with respect to standard gasoline combustion.

Original language	English
Pages (from-to)	68-78
Journal	Fuel
Volume	169
Early online date	27 Nov 2015
DOIs	https://doi.org/10.1016/j.fuel.2015.10.044
Publication status	Published - 1 Apr 2016

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Fuel. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Fuel, [VOL 169, (2015)] DOI: 10.1016/j.fuel.2015.10.044

© 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

Compression ratio
Butanol
DISI
Emissions
Particulates

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.fuel.2015.10.044

Lattimore Herreros Fuel 169 68 2015Accepted author manuscript, 1.14 MBLicence: CC BY-NC-ND

Cite this

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title = "Investigation of compression ratio and fuel effect on combustion and PM emissions in a DISI engine",

abstract = "Oxygenated fuel components such as the alcohols of 1-butanol and ethanol are well-known for their potential to improve engine combustion and PM emissions, and these particular fuels are receiving ever greater attention due to their renewable nature giving them great CO2 emission reduction potential. This paper investigates the effect of compression ratio and fuel properties on combustion, gaseous emissions and PM emissions of an experimental single-cylinder direct injection spark ignition (DISI) engine. The tests were carried out at an engine load of 8.5 bar, at various compression ratios between 10.7 and 11.5, with Bu20 (20%vol 1-butanol in gasoline) and E20 (20%vol ethanol in gasoline) fuel blends along with a reference fuel of gasoline. The results show that 1-butanol and ethanol addition to gasoline is effective to advance the MFB50 point and shorten the combustion duration. 1-butanol addition to gasoline is effective to reduce PM number emissions, while NOx reduction is the main benefit of ethanol addition. It is concluded that synergies between compression ratio and alcohol addition to gasoline enable to simultaneously control gaseous and particulate matter emissions while improving fuel economy with respect to standard gasoline combustion. ",

keywords = "Compression ratio, Butanol, DISI, Emissions, Particulates",

author = "T. Lattimore and Martin Herreros and H. Xu and S. Shuai",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Fuel. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Fuel, [VOL 169, (2015)] DOI: 10.1016/j.fuel.2015.10.044 {\textcopyright} 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/",

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doi = "10.1016/j.fuel.2015.10.044",

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AU - Lattimore, T.

AU - Herreros, Martin

AU - Xu, H.

AU - Shuai, S.

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Fuel. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Fuel, [VOL 169, (2015)] DOI: 10.1016/j.fuel.2015.10.044 © 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Oxygenated fuel components such as the alcohols of 1-butanol and ethanol are well-known for their potential to improve engine combustion and PM emissions, and these particular fuels are receiving ever greater attention due to their renewable nature giving them great CO2 emission reduction potential. This paper investigates the effect of compression ratio and fuel properties on combustion, gaseous emissions and PM emissions of an experimental single-cylinder direct injection spark ignition (DISI) engine. The tests were carried out at an engine load of 8.5 bar, at various compression ratios between 10.7 and 11.5, with Bu20 (20%vol 1-butanol in gasoline) and E20 (20%vol ethanol in gasoline) fuel blends along with a reference fuel of gasoline. The results show that 1-butanol and ethanol addition to gasoline is effective to advance the MFB50 point and shorten the combustion duration. 1-butanol addition to gasoline is effective to reduce PM number emissions, while NOx reduction is the main benefit of ethanol addition. It is concluded that synergies between compression ratio and alcohol addition to gasoline enable to simultaneously control gaseous and particulate matter emissions while improving fuel economy with respect to standard gasoline combustion.

AB - Oxygenated fuel components such as the alcohols of 1-butanol and ethanol are well-known for their potential to improve engine combustion and PM emissions, and these particular fuels are receiving ever greater attention due to their renewable nature giving them great CO2 emission reduction potential. This paper investigates the effect of compression ratio and fuel properties on combustion, gaseous emissions and PM emissions of an experimental single-cylinder direct injection spark ignition (DISI) engine. The tests were carried out at an engine load of 8.5 bar, at various compression ratios between 10.7 and 11.5, with Bu20 (20%vol 1-butanol in gasoline) and E20 (20%vol ethanol in gasoline) fuel blends along with a reference fuel of gasoline. The results show that 1-butanol and ethanol addition to gasoline is effective to advance the MFB50 point and shorten the combustion duration. 1-butanol addition to gasoline is effective to reduce PM number emissions, while NOx reduction is the main benefit of ethanol addition. It is concluded that synergies between compression ratio and alcohol addition to gasoline enable to simultaneously control gaseous and particulate matter emissions while improving fuel economy with respect to standard gasoline combustion.

KW - Compression ratio

KW - Butanol

KW - DISI

KW - Emissions

KW - Particulates

U2 - 10.1016/j.fuel.2015.10.044

DO - 10.1016/j.fuel.2015.10.044

M3 - Article

SN - 0016-2361

VL - 169

SP - 68

EP - 78

JO - Fuel

JF - Fuel

ER -

Investigation of compression ratio and fuel effect on combustion and PM emissions in a DISI engine

Abstract

Bibliographical note

Keywords

UN SDGs

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