Effects of Diethyl Ether Introduction in Emissions and Performance of a Diesel Engine Fueled with Biodiesel-Ethanol Blends

Márcio Carvalho, Felipe Torres, Vitor Ferreira, Júlio Silva, Jorge Martins and Ednildo Torres
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Márcio Carvalho: Polytechnic School, Industrial Engineering Postgraduate Program, Federal University of Bahia, Rua Aristides Novis, 2, Federação, Salvador 40210-630, Brazil
Felipe Torres: Polytechnic School, Industrial Engineering Postgraduate Program, Federal University of Bahia, Rua Aristides Novis, 2, Federação, Salvador 40210-630, Brazil
Vitor Ferreira: Institute of Science, Technology and Innovation, Federal University of Bahia, Rua do Telegráfo S/N, Camaçari 42809-000, Brazil
Júlio Silva: Department of Mechanical Engineering, Federal University of Bahia, Rua Aristides Novis, 2, Federação, Salvador 40210-630, Brazil
Jorge Martins: Department of Mechanical Engineering, Minho University, Av. da Universidade, Guimarães 4800-058, Portugal
Ednildo Torres: Department of Chemical Engineering, Federal University of Bahia, Rua Aristides Novis, 2, Federação, Salvador 40210-630, Brazil

Energies, 2020, vol. 13, issue 15, 1-14

Abstract: Biofuels provide high oxygen content for combustion and do modify properties that influence the engine operation process such as viscosity, enthalpy of vaporization, and cetane number. Some requirements of performance, fuel consumption, efficiency, and exhaust emission are necessary for the validation of these biofuels for application in engines. This work studies the effects of the use of diethyl ether (DEE) in biodiesel-ethanol blends in a DI mechanical diesel engine. The blends used in the tests were B80E20 (biodiesel 80%-ethanol 20%) and B76E19DEE5 (biodiesel 76%-ethanol 19%-DEE 5%). Fossil diesel (D100) and biodiesel (B100) were evaluated as reference fuels. The results revealed similar engine efficiencies among tested fuels at all loads. The use of B100 increased CO and NO x and decreased THC compared to D100 at the three loads tested. B80E20 fuel showed an increase in NO x emission in comparison with all fuels tested, which was attributed to higher oxygen content and lower cetane number. THC and CO were also increased for B80E20 compared to B100 and D100. The use of B76E19DEE5 fuel revealed reductions in NO x and CO emissions, while THC emissions increased. The engine efficiency of B76E19DEE5 was also highlighted at intermediate and more elevated engine load conditions.

Keywords: Biodiesel; diesel engines; diethyl ether; ethanol; biofuels; emissions (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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