Assessment of Binary and Ternary Biofuel Mixtures on the Performance and Emissions of a Common-rail Diesel Engine

Joaquim Da Costa, Luis Durão, Rui Carvalho, Francisco P. Brito, Maria Margarida Gonçalves, Jorge Martins

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Biofuels used as additives for Diesel engine are proposed to diversify fuel sources and reduce greenhouse gas (GHG) emissions, but also to optimize engine performance, as well as to reduce pollutant emissions. In addition, when these biofuels are produced from low-grade wastes, they consume their energy and solve an environmental problem which is the disposal of hazardous wastes. In this study, pyro-diesel (obtained from the pyrolysis of low-grade bio-oils wastes), biodiesel and ethanol were evaluated as additives for diesel, in a series of tests performed on a common-rail Diesel engine. Binary fuel mixtures of pyro-diesel+diesel, biodiesel+diesel and ethanol+diesel with biofuel incorporation between 5% (w/w) and 10% (w/w) were evaluated and compared with ternary fuel mixtures of pyro-diesel+ethanol+diesel and biodiesel+ethanol+diesel with biofuel incorporation of 5% (w/w). The fuel mix performance was assessed by determination of brake torque and power, fuel consumption and efficiency, as well as engine emissions (HC, NOx, and smoke). Part-load torque (50 and 70 N.m and wide-open throttle-WOT) with constant 0.5 bar turbocharging pressure were tested at two different engine speeds (1800 and 2250 rpm). The additives incorporation up to 10% tended to improve combustion efficiency and reduce emissions such as HC, NOx, and opacity relatively to straight diesel.

Original languageEnglish
Title of host publication2021 10th International Conference on Power Science and Engineering, ICPSE 2021
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages127-132
Number of pages6
ISBN (Electronic)978-1-6654-0598-0, 978-1-6654-0597-3
ISBN (Print)978-1-6654-2062-4
DOIs
Publication statusPublished - 2021
Event10th International Conference on Power Science and Engineering, ICPSE 2021 - Virtual, Istanbul, Turkey
Duration: 21 Oct 202123 Oct 2021

Conference

Conference10th International Conference on Power Science and Engineering, ICPSE 2021
Country/TerritoryTurkey
CityVirtual, Istanbul
Period21/10/2123/10/21

Keywords

  • Biodiesel
  • Biofuel
  • Diesel
  • Diesel engine
  • Ethanol
  • Performance and Emissions
  • Pyro-diesel
  • Waste valorisation

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