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Combustion and Emissions Characteristics of a Brassica Carinata FAME and N-Butanol Blend

[+] Author Affiliations
Martin Muinos, Spencer Harp, Benoit Kindo, Remi Gaubert, Valentin Soloiu

Georgia Southern University, Statesboro, GA

Paper No. POWER2016-59397, pp. V001T03A007; 11 pages
doi:10.1115/POWER2016-59397
From:
  • ASME 2016 Power Conference collocated with the ASME 2016 10th International Conference on Energy Sustainability and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology
  • ASME 2016 Power Conference
  • Charlotte, North Carolina, USA, June 26–30, 2016
  • Conference Sponsors: Power Division, Advanced Energy Systems Division, Solar Energy Division, Nuclear Engineering Division
  • ISBN: 978-0-7918-5021-3
  • Copyright © 2016 by ASME

abstract

In this study, the combustion and emissions characteristics of a new biodiesel and biodiesel blend in a direct injection (DI), experimental diesel engine and was compared to ultra-low sulfur diesel #2 (ULSD#2) at 1500 rpm and 4 bar indicated mean effective pressure (IMEP). The biodiesel blend, C90+BU10, included 90% brassica carinata (25% erucic acid methyl ester) and 10% n-butanol bio-alcohol by mass. The lower heating value of C90+BU10 was 37.25 MJ/kg, compared to 42.6 MJ/kg for ULSD#2. The ignition delay of ULSD#2 was 9.0 crank angle degrees (CAD) and decreased to 8.5 CAD for C90+BU10, which can be attributed to the higher cetane number of the biodiesel blend. The apparent heat release rate for both fuels exhibited a premixed and diffusion burn phase, with the peak heat release rate being 142 J/degree for ULSD#2 and 129 J/degree for C90+BU10. Nitrogen oxide (NOx) emissions decreased by 7% for the C90+BU10 blend. The particulate matter (PM) emissions for C90+BU10 exhibited a decrease of 55%, from 0.21 g/kWh for ULSD#2 to 0.0096 g/kWh for C90+BU10. The renewable fuels used in the study proved to be capable of reducing soot by 55% without exhaust gas after treatment systems and without reducing combustion efficiency.

Copyright © 2016 by ASME
Topics: Combustion , Emissions

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