Combustion characteristics, performance and emissions from a diesel power generator fuelled by B7-ethanol blends

José Ricardo Sodré, Alex De Oliveira, André Marcelino De Morais, Osmano Souza Valente

Research output: Contribution to journalArticle

Abstract

The effects of fuel blends containing 5, 10 and 15 wt.% of anhydrous ethanol in diesel oil with 7% of biodiesel (B7) on performance, emissions and combustion characteristics of a diesel power generator are investigated. The engine was tested with its original configuration, with the fuel blends directly injected into the combustion chamber, and the applied load varied from 5 to 37.5 kW. The results were compared with standard B7 operation, and showed that in in-cylinder peak pressure and heat release rate were decreased at low loads and increased at high loads with the use of ethanol. Increasing ethanol concentration caused increased ignition delay, decreased combustion duration and reduced exhaust gas temperature. The use of ethanol decreased carbon dioxide (CO2) emissions, up to 8.6% lower than B7. Carbon monoxide (CO), total hydrocarbons (THC) and oxides of nitrogen (NOX) emissions showed different behavior, depending on load and ethanol concentration.
Original languageEnglish
Pages (from-to)67-72
JournalFuel Processing Technology
Volume139
Early online date19 Aug 2015
DOIs
Publication statusPublished - 1 Nov 2015

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Ethanol
Nitrogen Oxides
Biofuels
Carbon Monoxide
Engine cylinders
Combustion chambers
Hydrocarbons
Biodiesel
Exhaust gases
Carbon Dioxide
Carbon monoxide
Ignition
Carbon dioxide
Oils
Engines
Nitrogen
Oxides
Temperature

Bibliographical note

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

Cite this

Sodré, José Ricardo ; De Oliveira, Alex ; De Morais, André Marcelino ; Valente, Osmano Souza. / Combustion characteristics, performance and emissions from a diesel power generator fuelled by B7-ethanol blends. In: Fuel Processing Technology. 2015 ; Vol. 139. pp. 67-72.
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abstract = "The effects of fuel blends containing 5, 10 and 15 wt.{\%} of anhydrous ethanol in diesel oil with 7{\%} of biodiesel (B7) on performance, emissions and combustion characteristics of a diesel power generator are investigated. The engine was tested with its original configuration, with the fuel blends directly injected into the combustion chamber, and the applied load varied from 5 to 37.5 kW. The results were compared with standard B7 operation, and showed that in in-cylinder peak pressure and heat release rate were decreased at low loads and increased at high loads with the use of ethanol. Increasing ethanol concentration caused increased ignition delay, decreased combustion duration and reduced exhaust gas temperature. The use of ethanol decreased carbon dioxide (CO2) emissions, up to 8.6{\%} lower than B7. Carbon monoxide (CO), total hydrocarbons (THC) and oxides of nitrogen (NOX) emissions showed different behavior, depending on load and ethanol concentration.",
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Combustion characteristics, performance and emissions from a diesel power generator fuelled by B7-ethanol blends. / Sodré, José Ricardo; De Oliveira, Alex; De Morais, André Marcelino; Valente, Osmano Souza.

In: Fuel Processing Technology, Vol. 139, 01.11.2015, p. 67-72.

Research output: Contribution to journalArticle

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