Reactivity controlled compression ignition (RCCI) has been shown to be capable of providing improved engine efficiencies coupled with the benefit of low emissions via in-cylinder fuel blending. Much of the previous body of work has studied the use of gasoline as the premixed low-reactivity fuel. However, there is interest in exploring the use of alternative fuels in advanced combustion strategies. Due to the strong market growth of natural gas as a fuel in both mobile and stationary applications, a study on the use of methane for RCCI combustion was performed. Single cylinder heavy-duty engine experiments were undertaken to examine the operating range of the RCCI combustion strategy with methane/diesel fueling, and was compared against gasoline/diesel RCCI operation. The experimental results show a significant load extension of RCCI engine operation with methane/diesel fueling compared to gasoline/diesel fueling. For gasoline/diesel fueling, a maximum load of 6.9 bar IMEPg at CA50 = 0° aTDC and 7.0 bar IMEPg at CA50 = 4° aTDC was obtained without use of EGR. For methane/diesel fueling a maximum load of 15.4 bar IMEPg at CA50 = 0° aTDC and 17.3 bar IMEPg at CA50 = 4° aTDC was achieved, showing the effectiveness of the use of methane in extending the load limit for RCCI engine operation.
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ASME 2014 Internal Combustion Engine Division Fall Technical Conference
October 19–22, 2014
Columbus, Indiana, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
978-0-7918-4616-2
PROCEEDINGS PAPER
Natural Gas for High Load Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) in Heavy-Duty Engines
N. Ryan Walker,
N. Ryan Walker
University of Wisconsin-Madison, Madison, WI
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Martin L. Wissink,
Martin L. Wissink
University of Wisconsin-Madison, Madison, WI
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Dan A. DelVescovo,
Dan A. DelVescovo
University of Wisconsin-Madison, Madison, WI
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Rolf D. Reitz
Rolf D. Reitz
University of Wisconsin-Madison, Madison, WI
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N. Ryan Walker
University of Wisconsin-Madison, Madison, WI
Martin L. Wissink
University of Wisconsin-Madison, Madison, WI
Dan A. DelVescovo
University of Wisconsin-Madison, Madison, WI
Rolf D. Reitz
University of Wisconsin-Madison, Madison, WI
Paper No:
ICEF2014-5620, V001T03A016; 9 pages
Published Online:
December 9, 2014
Citation
Walker, NR, Wissink, ML, DelVescovo, DA, & Reitz, RD. "Natural Gas for High Load Dual-Fuel Reactivity Controlled Compression Ignition (RCCI) in Heavy-Duty Engines." Proceedings of the ASME 2014 Internal Combustion Engine Division Fall Technical Conference. Volume 1: Large Bore Engines; Fuels; Advanced Combustion; Emissions Control Systems. Columbus, Indiana, USA. October 19–22, 2014. V001T03A016. ASME. https://doi.org/10.1115/ICEF2014-5620
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