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Durability Testing of Biomass Based Oxygenated Fuel Components in a Compression Ignition Engine

[+] Author Affiliations
Marc E. Baumgardner

Gonzaga University, Spokane, WA

Arunachalam Lakshminarayanan, Daniel B. Olsen, Anthony J. Marchese

Colorado State University, Fort Collins, CO

Matthew A. Ratcliff, Robert L. McCormick

National Renewable Energy Laboratory, Golden, CO

Paper No. ICEF2017-3551, pp. V001T02A002; 9 pages
doi:10.1115/ICEF2017-3551
From:
  • ASME 2017 Internal Combustion Engine Division Fall Technical Conference
  • Volume 1: Large Bore Engines; Fuels; Advanced Combustion
  • Seattle, Washington, USA, October 15–18, 2017
  • Conference Sponsors: Internal Combustion Engine Division
  • ISBN: 978-0-7918-5831-8
  • Copyright © 2017 by ASME

abstract

Blending cellulosic biofuels with traditional petroleum-derived fuels results in transportation fuels with reduced carbon footprints. Many cellulosic fuels rely on processing methods that produce mixtures of oxygenates which must be upgraded before blending with traditional fuels. Complete oxygenate removal is energy-intensive and it is likely that such biofuel blends will necessarily contain some oxygen content to be economically viable. Previous work by our group indicated that diesel fuel blends with low levels (<4%-vol) of oxygenates resulted in minimal negative effects on short-term engine performance and emissions. However, little is known about the long-term effects of these compounds on engine durability issues such as the impact on fuel injection, in-cylinder carbon buildup, and engine oil degradation. In this study, four of the oxygenated components previously tested were blended at 4%-vol in diesel fuel and tested with a durability protocol devised for this work consisting of 200 hrs of testing in a stationary, single-cylinder, Yanmar diesel engine operating at constant load. Oil samples, injector spray patterns, and carbon buildup from the injector and cylinder surfaces were analyzed. It was found that, at the levels tested, these fuels had minimal impact on the overall engine operation, which is consistent with our previous findings.

Copyright © 2017 by ASME

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