Evaluation of hydrous ethanol as a fuel for internal combustion engines: A review

Wang, X; Gao, J; Chen, Z; Chen, H; Zhao, Y; Huang, Y; Chen, Z

Evaluation of hydrous ethanol as a fuel for internal combustion engines: A review

Wang, X Gao, J Chen, Z Chen, H Zhao, Y Huang, Y

Chen, Z

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Renewable Energy, 2022, 194, pp. 504-525
Issue Date:: 2022-07-01

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Field	Value	Language
dc.contributor.author	Wang, X
dc.contributor.author	Gao, J
dc.contributor.author	Chen, Z
dc.contributor.author	Chen, H
dc.contributor.author	Zhao, Y
dc.contributor.author	Huang, Y https://orcid.org/0000-0001-9800-8788
dc.contributor.author	Chen, Z
dc.date.accessioned	2022-07-18T03:58:19Z
dc.date.available	2022-07-18T03:58:19Z
dc.date.issued	2022-07-01
dc.identifier.citation	Renewable Energy, 2022, 194, pp. 504-525
dc.identifier.issn	0960-1481
dc.identifier.issn	1879-0682
dc.identifier.uri	http://hdl.handle.net/10453/158983
dc.description.abstract	Ethanol has been extensively used worldwide as a renewable biofuel to partly substitute fossil fuels, aiming to reduce pollutant and greenhouse gas emissions. However, due to the azeotropic points of water and ethanol, the production of anhydrous ethanol is energy intensive as significant energy is consumed in the distillation and dehydration processes. Therefore, the direct use of hydrous ethanol in engines can dramatically conserve energy and reduce costs. Under this background, this review focuses on the direct use of hydrous ethanol in internal combustion engines. This paper begins with a brief description of the fuel physicochemical properties relevant to engine applications. Furthermore, fundamental combustion characteristics, including the laminar burning velocity, ignition delay time and flame instability, are introduced. Then, the applications of hydrous ethanol or its blends with gasoline in spark ignition engines are summarized. Next, compression ignition engines running on hydrous ethanol in blended and dual-fuel modes are described. Subsequently, the use of hydrous ethanol in advanced combustion concepts, such as homogeneous charge compression ignition and thermally stratified compression ignition, is reviewed. Finally, the conclusions are presented and recommendations for future research are proposed.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Renewable Energy
dc.relation.isbasedon	10.1016/j.renene.2022.05.132
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0906 Electrical and Electronic Engineering, 0913 Mechanical Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Energy
dc.title	Evaluation of hydrous ethanol as a fuel for internal combustion engines: A review
dc.type	Journal Article
utslib.citation.volume	194
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	0913 Mechanical Engineering
utslib.for	0915 Interdisciplinary Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2024-05-01T00:00:00+1000Z
dc.date.updated	2022-07-18T03:58:18Z
pubs.publication-status	Published
pubs.volume	194

Abstract:

Ethanol has been extensively used worldwide as a renewable biofuel to partly substitute fossil fuels, aiming to reduce pollutant and greenhouse gas emissions. However, due to the azeotropic points of water and ethanol, the production of anhydrous ethanol is energy intensive as significant energy is consumed in the distillation and dehydration processes. Therefore, the direct use of hydrous ethanol in engines can dramatically conserve energy and reduce costs. Under this background, this review focuses on the direct use of hydrous ethanol in internal combustion engines. This paper begins with a brief description of the fuel physicochemical properties relevant to engine applications. Furthermore, fundamental combustion characteristics, including the laminar burning velocity, ignition delay time and flame instability, are introduced. Then, the applications of hydrous ethanol or its blends with gasoline in spark ignition engines are summarized. Next, compression ignition engines running on hydrous ethanol in blended and dual-fuel modes are described. Subsequently, the use of hydrous ethanol in advanced combustion concepts, such as homogeneous charge compression ignition and thermally stratified compression ignition, is reviewed. Finally, the conclusions are presented and recommendations for future research are proposed.

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http://hdl.handle.net/10453/158983