1–20 von 26 Ergebnissen
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    Signal Reconstruction of Two-Color Pyrometry Technique Using CFD and a Detailed Spectral Radiation Model in a Marine Diesel Engine Setup

    von Rotz, Beat / Haworth, Daniel / Boulouchos, Konstantinos et al. | SAE Technical Papers | 2021
    Optical soot pyrometry is a mature experimental technique that has been applied to a broad range of combustion systems for measuring soot ...
    Verlag: Society of Automotive Engineers , SAE International

    Optical Investigation of Sooting Propensity of n-Dodecane Pilot/Lean-Premixed Methane Dual-Fuel Combustion in a Rapid Compression-Expansion Machine

    Srna, Aleš / von Rotz, Beat / Bruneaux, Gilles et al. | SAE Technical Papers | 2018
    The sooting propensity of dual-fuel combustion with n-dodecane pilot injection in a lean-premixed methane-air charge has been investigated ...
    Verlag: Society of Automotive Engineers , SAE International

    Fundamental Aspects of Jet Ignition for Natural Gas Engines

    Giusti, Andrea / Frouzakis, Christos / Mastorakos, Epaminondas et al. | SAE Technical Papers | 2017
    Large-bore natural gas engines may use pre-chamber ignition. Despite extensive research in engine environments, the exact nature of the jet ...
    Verlag: Society of Automotive Engineers , SAE International

    Experimental and Numerical Investigation of the Engine Operational Conditions’ Influences on a Small Un-Scavenged Pre-Chamber’s Behavior

    XU, Guoqing / Bardis, Konstantinos / Boulouchos, Konstantinos et al. | SAE Technical Papers | 2017
    Despite significant benefits in terms of the ignition enhancement, the strength and timing of the turbulent flame jets subsequently issuing ...
    Verlag: Society of Automotive Engineers , SAE International

    Generation of Turbulence in a RCEM towards Engine Relevant Conditions for Premixed Combustion Based on CFD and PIV Investigations

    Koch, Jann / Boulouchos, Konstantinos / Soltic, Patrik et al. | SAE Technical Papers | 2017
    The interaction of turbulent premixed methane combustion with the surrounding flow field can be studied using optically accessible test ...
    Verlag: Society of Automotive Engineers , SAE International

    Development and Experimental Validation of a Fast Spray Ignition Model for Diesel Engines Using Insights from CFD Spray Calculations

    Lucjan, Adam / Barro, Christophe / Boulouchos, Konstantinos et al. | SAE Technical Papers | 2017
    Modern Diesel engines have become ever more complex systems with many degrees of freedom. Simultaneously, with increasing computational ...
    Verlag: Society of Automotive Engineers , SAE International

    The Effect of Cycle-to-Cycle Variations on the NOx-SFC Tradeoff in Diesel Engines under Long Ignition Delay Conditions

    Zivolic, Antonio / Brueckner, Clemens / Boulouchos, Konstantinos et al. | SAE Technical Papers | 2017
    increases in emissions. Recent research has led to the identification of the source of cyclic variations of pressure, soot and NO emissions in ...
    Verlag: Society of Automotive Engineers , SAE International

    Extension of the Phenomenological 3-Arrhenius Auto-Ignition Model for Six Surrogate Automotive Fuels

    Vandersickel, Annelies / Blomberg, Christopher Kim / Mitakos, Dimitrios et al. | SAE Technical Papers | 2016
    simulations using chemical kinetic mechanisms are performed to generate ignition delays for a very wide range of conditions, namely variations in ...
    Verlag: Society of Automotive Engineers , SAE International

    Modeling Split Injections of ECN “Spray A” Using a Conditional Moment Closure Combustion Model with RANS and LES

    Blomberg, Christopher Kim / Boulouchos, Konstantinos / Zeugin, Lucas et al. | SAE Technical Papers | 2016
    This study investigates n-dodecane split injections of “Spray A” from the Engine Combustion Network (ECN) using two different turbulence ...
    Verlag: Society of Automotive Engineers , SAE International

    Comparison and Sensitivity Analysis of Turbulent Flame Speed Closures in the RANS G-Equation Context for Two Distinct Engines

    Xu, Guoqing / Koch, Jann / Boulouchos, Konstantinos et al. | SAE Technical Papers | 2016
    experimental efforts by providing improved understanding of the combustion process. A widely adopted combustion model in the engine community for ...
    Verlag: Society of Automotive Engineers , SAE International

    Analysis of Averaging Methods for Large Eddy Simulations of Diesel Sprays

    Farrace, Daniele / Boulouchos, Konstantinos / Schmitt, Martin et al. | SAE Technical Papers | 2015
    Large Eddy Simulations (LES) provide instantaneous values indispensable to conduct statistical studies of relevant fluctuating quantities ...
    Verlag: Society of Automotive Engineers , SAE International

    Fluid Dynamic Comparison of AdBlue Injectors for SCR Applications

    Spiteri, Alexander / Montenegro, Gianluca / Boulouchos, Konstantinos et al. | SAE Technical Papers | 2015
    The injection process of urea-water solution (AdBlue) determines initial conditions for reactions and catalysis and is fundamentally ...
    Verlag: Society of Automotive Engineers , SAE International

    Numerical Study of the Influence of EGR on In-Cylinder Soot Characteristics in a Heavy-Duty Diesel Engine using CMC

    Farrace, Daniele / Boulouchos, Konstantinos / Bolla, Michele et al. | SAE Technical Papers | 2014
    This paper presents numerical simulations of in-cylinder soot evolution in the optically accessible heavy-duty diesel engine of Sandia ...
    Verlag: Society of Automotive Engineers , SAE International

    LES Multi-Cycle Analysis of the Combustion Process in a Small SI Engine

    Koch, Jann / Steurs, Karel / Boulouchos, Konstantinos et al. | SAE Technical Papers | 2014
    Large eddy simulations (LES) of a port-injected 4-valve spark ignited (SI) engine have been carried out with the emphasis on the combustion ...
    Verlag: Society of Automotive Engineers , SAE International

    Formulation of a Knock Model for Ethanol and Iso-Octane under Specific Consideration of the Thermal Boundary Layer within the End-Gas

    Blomberg, Christopher / Steurs, Karel / Boulouchos, Konstantinos | SAE Technical Papers | 2014
    Knock is often the main limiting factor for brake efficiency in spark ignition engines and is mostly attributed to auto-ignition of the ...
    Verlag: Society of Automotive Engineers , SAE International

    Influence of EGR on Post-Injection Effectiveness in a Heavy-Duty Diesel Engine Fuelled with n-Heptane

    Boulouchos, Konstantinos / Bolla, Michele / Frapolli, Nicolò et al. | SAE Technical Papers | 2014
    Numerical simulations of a heavy-duty diesel engine fuelled with n-heptane have been performed with the conditional moment closure (CMC ...
    Verlag: Society of Automotive Engineers , SAE International

    Numerical Modelling and Experimental Characterization of a Pressure-Assisted Multi-Stream Injector for SCR Exhaust Gas After-Treatment

    Varna, Achinta / Spiteri, Alexander / Boulouchos, Konstantinos et al. | SAE Technical Papers | 2014
    comprises four different combinations of mass flow rate and temperature for the gas stream with unchanged injection parameters for the spray. First ...
    Verlag: Society of Automotive Engineers , SAE International

    Extending the NOx Reduction Potential with Miller Valve Timing Using Pilot Fuel Injection on a Heavy-Duty Diesel Engine

    Brückner, Clemens / Boulouchos, Konstantinos / Kyrtatos, Panagiotis | SAE Technical Papers | 2014
    oxides emission reduction. A promising approach to achieve part of this decrease is charge air temperature reduction using Miller timing. However ...
    Verlag: Society of Automotive Engineers , SAE International

    Knock in an Ethanol Fueled Spark Ignition Engine: Detection Methods with Cycle-Statistical Analysis and Predictions Using Different Auto-Ignition Models

    Blomberg, Christopher Kim / Steurs, Karel / Boulouchos, Konstantinos | SAE Technical Papers | 2014
    -cylinder pressure traces are analyzed during knocking combustion and have led to a definition of knocking conditions both for every single cycle as ...
    Verlag: Society of Automotive Engineers , SAE International

    Simulations of Diesel Sprays Using the Conditional Moment Closure Model

    Boulouchos, Konstantinos / Bolla, Michele / Gudmundsson, Thordur et al. | SAE Technical Papers | 2013
    Numerical simulations of diesel sprays in a constant-volume vessel have been performed with the conditional moment closure (CMC) combustion ...
    Verlag: Society of Automotive Engineers , SAE International