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

de Oliveira, Alex and de Morais, Andre Marcelino and Valente, Osmana Souza and Sodre, Jose Ricardo (2015) Combustion characteristics, performance and emissions from a diesel power generator fuelled by B7-ethanol blends. Fuel Processing Technology, 139. pp. 67-72. ISSN 0378-3820

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Abstract

The effects of fuel blends containing 5, 10 and 15wt.% of anhydrous ethanol in diesel oilwith 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 from5 to 37.5 kW. The resultswere comparedwith standard B7 operation,
and showed that in in-cylinder peak pressure and heat release rate were decreased at lowloads 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.

Item Type: Article
Uncontrolled Keywords: Ethanol Diesel engine Combustion Emissions Power generation
Subjects: H800 Chemical, Process and Energy Engineering
Divisions: Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Advanced Systems Engineering
UoA Collections > UoA15: General Engineering
Depositing User: $ Ian McDonald
Date Deposited: 21 Dec 2016 11:59
Last Modified: 21 Dec 2016 11:59
URI: http://www.open-access.bcu.ac.uk/id/eprint/3735

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