High-speed imaging combined with the optical access provided by a research engine offer the ability to directly image and compare ignition and combustion phenomena of various fuels. Such data provide valuable insight into the physical and chemical mechanisms important in each system. In this study, crank-angle resolved imaging data were used to investigate homogeneous charge compression ignition (HCCI) operation of a single-cylinder four-valve optical engine fueled using gasoline, indolene, and iso-octane. Lean operating limits were the focus of the study with the primary objective of identifying different modes of reaction front initiation and propagation for each fuel. HCCI combustion was initiated and maintained over a range of lean conditions for various fuels, from φ = 0.77 to 0.27. The time-resolved imaging and pressure data show high rates of heat release in HCCI combustion correlate temporally to simultaneous, intense volumetric blue emission. Lower rates of heat release are characteristic of spatially-resolved blue emission. Gasoline supported leaner HCCI operation than indolene. Iso-octane showed a dramatic transition into misfire. Similar regions of preferential ignition were identified for each of the fuels considered using the imaging data.
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ASME 2006 Internal Combustion Engine Division Fall Technical Conference
November 5–8, 2006
Sacramento, California, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4260-6
PROCEEDINGS PAPER
A Comparison of Imaging of Compression Ignition Phenomena of Iso-Octane, Indolene, and Gasoline Fuels in a Single-Cylinder Research Engine Available to Purchase
Bradley T. Zigler,
Bradley T. Zigler
University of Michigan, Ann Arbor, MI
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Stephen M. Walton,
Stephen M. Walton
University of Michigan, Ann Arbor, MI
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Dimitris Assanis,
Dimitris Assanis
University of Michigan, Ann Arbor, MI
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Elizabeth Perez,
Elizabeth Perez
University of Michigan, Ann Arbor, MI
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Margaret S. Wooldridge,
Margaret S. Wooldridge
University of Michigan, Ann Arbor, MI
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Steven T. Wooldridge
Steven T. Wooldridge
Ford Motor Company, Dearborn, MI
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Bradley T. Zigler
University of Michigan, Ann Arbor, MI
Stephen M. Walton
University of Michigan, Ann Arbor, MI
Dimitris Assanis
University of Michigan, Ann Arbor, MI
Elizabeth Perez
University of Michigan, Ann Arbor, MI
Margaret S. Wooldridge
University of Michigan, Ann Arbor, MI
Steven T. Wooldridge
Ford Motor Company, Dearborn, MI
Paper No:
ICEF2006-1553, pp. 147-163; 17 pages
Published Online:
September 5, 2008
Citation
Zigler, BT, Walton, SM, Assanis, D, Perez, E, Wooldridge, MS, & Wooldridge, ST. "A Comparison of Imaging of Compression Ignition Phenomena of Iso-Octane, Indolene, and Gasoline Fuels in a Single-Cylinder Research Engine." Proceedings of the ASME 2006 Internal Combustion Engine Division Fall Technical Conference. ASME 2006 Internal Combustion Engine Division Fall Technical Conference (ICEF2006). Sacramento, California, USA. November 5–8, 2006. pp. 147-163. ASME. https://doi.org/10.1115/ICEF2006-1553
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