1–20 von 170 Ergebnissen
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    The Effect of Swirl Ratio and Fuel Injection Parameters on CO Emission and Fuel Conversion Efficiency for High-Dilution, Low-Temperature Combustion in an Automotive Diesel Engine

    Bae, Choongsik / Choi, Dae / Bergin, Michael et al. | SAE Technical Papers | 2006
    swirl ratio range of 1.44-7.12 and a wide range of injection timing. At fixed injection timing, an optimal swirl ratio for minimum CO emission ...
    Verlag: Society of Automotive Engineers , SAE International

    Comparison of Diesel Combustion CFD Models and Evaluation of the Effects of Model Constants

    Wang, Hu / Yao, Mingfa / Reitz, Rolf D. | SAE Technical Papers | 2012
    This paper describes numerical simulations that compare the performance of two combustion CFD models against experimental data, and ...
    Verlag: Society of Automotive Engineers , SAE International

    Extension of the Lower Load Limit of Gasoline Compression Ignition with 87 AKI Gasoline by Injection Timing and Pressure

    Das Adhikary, Bishwadipa / Kolodziej, Christopher P. / Vuilleumier, David et al. | SAE Technical Papers | 2014
    Previous work has demonstrated the capabilities of gasoline compression ignition to achieve engine loads as high as 19.5 bar BMEP with a ...
    Verlag: Society of Automotive Engineers , SAE International

    Efficiency and Emissions Mapping of RCCI in a Light-Duty Diesel Engine

    Hanson, Reed / Wagner, Robert / Reitz, Rolf D. et al. | SAE Technical Papers | 2013
    In-cylinder blending of gasoline and diesel to achieve Reactivity Controlled Compression Ignition (RCCI) has been shown to reduce NOX and ...
    Verlag: Society of Automotive Engineers , SAE International

    Direct Dual Fuel Stratification, a Path to Combine the Benefits of RCCI and PPC

    Wissink, Martin / Reitz, Rolf D. | SAE Technical Papers | 2015
    Control of the timing and magnitude of heat release is one of the biggest challenges for premixed compression ignition, especially when ...
    Verlag: Society of Automotive Engineers , SAE International

    Effect of Compression Ratio and Piston Geometry on RCCI Load Limits and Efficiency

    Splitter, Derek / Wissink, Martin / Reitz, Rolf D. et al. | SAE Technical Papers | 2012
    The present experimental study explores the effects of compression ratio and piston design in a heavy-duty diesel engine operated with ...
    Verlag: Society of Automotive Engineers , SAE International

    The Effect of Operating Parameters on Soot Emissions in GDI Engines

    Jiao, Qi / Reitz, Rolf D. | SAE Technical Papers | 2015
    from GDI engines. In this paper, the influence of engine operating parameters was examined for a side-mounted fuel injector configuration in a ...
    Verlag: Society of Automotive Engineers , SAE International

    CFD Study of Soot Reduction Mechanisms of Post-Injection in Spray Combustion

    Hessel, Randy / Reitz, Rolf D. / Yue, Zongyu | SAE Technical Papers | 2015
    The application of close-coupled post injections in diesel engines has been proven to be an effective in-cylinder strategy for soot ...
    Verlag: Society of Automotive Engineers , SAE International

    Multidimensional Modeling of the Effects of Radiation and Soot Deposition in Heavy-duty Diesel Engines

    Wiedenhoefer, James F. / Reitz, Rolf D. | SAE Technical Papers | 2003
    of soot and radiation on diesel engine performance at high load. A thermophoretic soot deposition model was implemented to predict soot ...
    Verlag: Society of Automotive Engineers , SAE International

    Highway Fuel Economy Testing of an RCCI Series Hybrid Vehicle

    Gross, Christopher / Storey, John / Hanson, Reed et al. | SAE Technical Papers | 2015
    results were used to provide estimates of fuel economy and emissions performance with comparisons to a commercially available hybrid vehicle. The ...
    Verlag: Society of Automotive Engineers , SAE International

    A Computational Investigation of the Effects of Swirl Ratio and Injection Pressure on Mixture Preparation and Wall Heat Transfer in a Light-Duty Diesel Engine

    Dempsey, Adam / Petersen, Benjamin / Sahoo, Dipankar et al. | SAE Technical Papers | 2013
    In a recent study, quantitative measurements were presented of in-cylinder spatial distributions of mixture equivalence ratio in a single ...
    Verlag: Society of Automotive Engineers , SAE International

    Effect of Piston Bowl Geometry on Dual Fuel Reactivity Controlled Compression Ignition (RCCI) in a Light-Duty Engine Operated with Gasoline/Diesel and Methanol/Diesel

    Dempsey, Adam B. / Walker, N. Ryan / Reitz, Rolf D. | SAE Technical Papers | 2013
    with two different fuel combinations: gasoline/diesel fuel and methanol/diesel fuel. The engine was operated over a range of conditions, from ...
    Verlag: Society of Automotive Engineers , SAE International

    Assessment of RNG Turbulence Modeling and the Development of a Generalized RNG Closure Model

    Wang, Bao-Lin / Petersen, Benjamin / Miles, Paul C. et al. | SAE Technical Papers | 2011
    over-predicted R term in RNG model becomes a sink of dissipation in the ε-equation. As a second step, the RNG turbulence closure dissipation ...
    Verlag: Society of Automotive Engineers , SAE International

    Efficiency and Emissions performance of Multizone Stratified Compression Ignition Using Different Octane Fuels

    Knock, Aaron / Das Adhikary, Bishwadipa / Johnson, Michael et al. | SAE Technical Papers | 2013
    Advanced combustion systems that simultaneously address PM and NOx while retaining the high efficiency of modern diesel engines, are being ...
    Verlag: Society of Automotive Engineers , SAE International

    Modeling the Effects of Geometry Generated Turbulence on HCCI Engine Combustion

    Johansson, Bengt / Christensen, Magnus / Reitz, Rolf D. et al. | SAE Technical Papers | 2003
    The present study uses a numerical model to investigate the effects of flow turbulence on premixed iso-octane HCCI engine combustion ...
    Verlag: Society of Automotive Engineers , SAE International

    Numerical Study of RCCI and HCCI Combustion Processes Using Gasoline, Diesel, iso-Butanol and DTBP Cetane Improver

    DelVescovo, Dan / Wang, Hu / Yao, Mingfa et al. | SAE Technical Papers | 2015
    combustion. RCCI can be realized by applying two fuels with different reactivities, e.g., diesel and gasoline. This motivates the idea of using a ...
    Verlag: Society of Automotive Engineers , SAE International

    An Experimental Investigation of Fuel Reactivity Controlled PCCI Combustion in a Heavy-Duty Engine

    Splitter, Derek A. / Hanson, Reed M. / Reitz, Rolf D. et al. | SAE Technical Papers | 2010
    This study investigates the potential of controlling premixed charge compression ignition (PCCI) combustion strategies by varying fuel ...
    Verlag: Society of Automotive Engineers , SAE International

    Computational Optimization of a Heavy-Duty Compression Ignition Engine Fueled with Conventional Gasoline

    Dempsey, Adam B. / Reitz, Rolf D. | SAE Technical Papers | 2011
    The potential of low temperature combustion to yield low NOx and soot while maintaining diesel-like thermal efficiencies has been ...
    Verlag: Society of Automotive Engineers , SAE International

    Modeling the Effect of Primary Atomization on Diesel Engine Emissions

    Reitz, Rolf D. / Yi, Yong | SAE Technical Papers | 2003
    jet was simulated by a discrete Lagrangian particle method, and the primary breakup of the jet was calculated using a new 1-D Eulerian method ...
    Verlag: Society of Automotive Engineers , SAE International

    Modeling the Influence of Molecular Interactions on the Vaporization of Multi-component Fuel Sprays

    Jiao, Qi / Reitz, Rolf D. / Ra, Youngchul | SAE Technical Papers | 2011
    suppress the vaporization of the components in the system compared to predictions from ideal mixing using Raoult's Law, especially for polar fuels ...
    Verlag: Society of Automotive Engineers , SAE International