Exhaust emissions with ethanol or n-butanol diesel fuel blends during transient operation: A review
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| Title: | Exhaust emissions with ethanol or n-butanol diesel fuel blends during transient operation: A review |
|---|---|
| Authors: | Giakoumis, Evangelos G. vgiakms@central.ntua.gr, Rakopoulos, Constantine D.1, Dimaratos, Athanasios M.1, Rakopoulos, Dimitrios C.1 |
| Source: | Renewable & Sustainable Energy Reviews. Jan2013, Vol. 17, p170-190. 21p. |
| Subject Terms: | *Ethanol, *Butanol, *Diesel fuels, *Hydrocarbons, *Carbon monoxide, Electric transients |
| Abstract: | Abstract: The present work reviews the literature concerning the effects of alcohol/diesel blends on the exhaust emissions of diesel engines operating under transient conditions, i.e., acceleration, load increase, starting and transient/driving cycles. Two very promising alcohols are covered in this survey, namely ethanol and n-butanol. The analysis focuses on all regulated exhaust pollutants, i.e., particulate matter (PM), nitrogen oxides (NO x ), carbon monoxide (CO) and unburned hydrocarbons (HC), with results for unregulated emissions, carbon dioxide and combustion noise radiation also included. The main mechanisms of exhaust emissions during transients are identified and discussed, with respect to the fundamental aspects of transient operation and the differing properties of alcohols relative to the reference diesel oil. Based on the published studies up today, summarization of emissions data and cumulative trends are presented, for the purpose of quantifying the alcohol blends benefits or penalties on the regulated emissions during various driving cycles. Particularly for the emitted PM and smoke, a statistically significant correlation with the oxygen content exists (R 2=0.85 and 0.95, respectively). A similar correlation holds true for the heavy-duty, engine-dynamometer data of engine-out CO. Finally, a detailed list is provided that summarizes the main data from all studies published so far. [Copyright &y& Elsevier] |
| Copyright of Renewable & Sustainable Energy Reviews is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 83324453 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Exhaust emissions with ethanol or n-butanol diesel fuel blends during transient operation: A review – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Giakoumis%2C+Evangelos+G%2E%22">Giakoumis, Evangelos G.</searchLink><i> vgiakms@central.ntua.gr</i><br /><searchLink fieldCode="AR" term="%22Rakopoulos%2C+Constantine+D%2E%22">Rakopoulos, Constantine D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dimaratos%2C+Athanasios+M%2E%22">Dimaratos, Athanasios M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rakopoulos%2C+Dimitrios+C%2E%22">Rakopoulos, Dimitrios C.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Renewable+%26+Sustainable+Energy+Reviews%22">Renewable & Sustainable Energy Reviews</searchLink>. Jan2013, Vol. 17, p170-190. 21p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Ethanol%22">Ethanol</searchLink><br />*<searchLink fieldCode="DE" term="%22Butanol%22">Butanol</searchLink><br />*<searchLink fieldCode="DE" term="%22Diesel+fuels%22">Diesel fuels</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydrocarbons%22">Hydrocarbons</searchLink><br />*<searchLink fieldCode="DE" term="%22Carbon+monoxide%22">Carbon monoxide</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+transients%22">Electric transients</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The present work reviews the literature concerning the effects of alcohol/diesel blends on the exhaust emissions of diesel engines operating under transient conditions, i.e., acceleration, load increase, starting and transient/driving cycles. Two very promising alcohols are covered in this survey, namely ethanol and n-butanol. The analysis focuses on all regulated exhaust pollutants, i.e., particulate matter (PM), nitrogen oxides (NO x ), carbon monoxide (CO) and unburned hydrocarbons (HC), with results for unregulated emissions, carbon dioxide and combustion noise radiation also included. The main mechanisms of exhaust emissions during transients are identified and discussed, with respect to the fundamental aspects of transient operation and the differing properties of alcohols relative to the reference diesel oil. Based on the published studies up today, summarization of emissions data and cumulative trends are presented, for the purpose of quantifying the alcohol blends benefits or penalties on the regulated emissions during various driving cycles. Particularly for the emitted PM and smoke, a statistically significant correlation with the oxygen content exists (R 2=0.85 and 0.95, respectively). A similar correlation holds true for the heavy-duty, engine-dynamometer data of engine-out CO. Finally, a detailed list is provided that summarizes the main data from all studies published so far. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Renewable & Sustainable Energy Reviews is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.rser.2012.09.017 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 21 StartPage: 170 Subjects: – SubjectFull: Ethanol Type: general – SubjectFull: Butanol Type: general – SubjectFull: Diesel fuels Type: general – SubjectFull: Hydrocarbons Type: general – SubjectFull: Carbon monoxide Type: general – SubjectFull: Electric transients Type: general Titles: – TitleFull: Exhaust emissions with ethanol or n-butanol diesel fuel blends during transient operation: A review Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Giakoumis, Evangelos G. – PersonEntity: Name: NameFull: Rakopoulos, Constantine D. – PersonEntity: Name: NameFull: Dimaratos, Athanasios M. – PersonEntity: Name: NameFull: Rakopoulos, Dimitrios C. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2013 Type: published Y: 2013 Identifiers: – Type: issn-print Value: 13640321 Numbering: – Type: volume Value: 17 Titles: – TitleFull: Renewable & Sustainable Energy Reviews Type: main |
| ResultId | 1 |
