Journal article
Partial Fuel Stratification to Control HCCI Heat Release Rates: Fuel Composition and Other Factors Affecting Pre-Ignition Reactions of Two-Stage Ignition Fuels
Y Yang, J Dec, N Dronniou, M Sjöberg, W Cannella
SAE International Journal of Engines | Published : 2011
DOI: 10.4271/2011-01-1359
Abstract
Homogeneous charge compression ignition (HCCI) combustion with fully premixed charge is severely limited at high-load operation due to the rapid pressure-rise rates (PRR) which can lead to engine knock and potential engine damage. Recent studies have shown that two-stage ignition fuels possess a significant potential to reduce the combustion heat release rate, thus enabling higher load without knock. This study focuses on three factors, engine speed, intake temperature, and fuel composition, that can affect the pre-ignition processes of two-stage fuels and consequently affect their performance with partial fuel stratification. A model fuel consisting of 73 vol.% isooctane and 27 vol.% of n-h..
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Awarded by Chevron under WFO
Awarded by U.S. Department of Energy's National Nuclear Security Administration
Funding Acknowledgements
Primary support for this investigation was provided by Chevron under WFO contract FI083070907-Z. The work was performed at the Combustion Research Facility, Sandia National Laboratories, Livermore, CA. Support for establishing the HCCI lab facility was provided by the U.S. Department of Energy, Office of Vehicle Technologies, managed by Gurpreet Singh. Sandia is a multiprogram laboratory operated by the Sandia Corporation, a Lockheed Martin Company, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.