Search Results - "SJÖBERG, Magnus"

What fuel properties enable higher thermal efficiency in spark-ignited engines? by Szybist, James P., Busch, Stephen, McCormick, Robert L., Pihl, Josh A., Splitter, Derek A., Ratcliff, Matthew A., Kolodziej, Christopher P., Storey, John M.E., Moses-DeBusk, Melanie, Vuilleumier, David, Sjöberg, Magnus, Sluder, C. Scott, Rockstroh, Toby, Miles, Paul

“…The Co-Optimization of Fuels and Engines (Co-Optima) initiative from the US Department of Energy aims to co-develop fuels and engines in an effort to maximize…”
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Octane Requirements of Lean Mixed-Mode Combustion in a Direct-Injection Spark-Ignition Engine by Kim, Namho, Vuilleumier, David, Singh, Eshan, Sjöberg, Magnus

“…This study investigates the octane requirements of a hybrid flame propagation and controlled autoignition mode referred to as mixed-mode combustion (MMC),…”
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Effects of EGR and its constituents on HCCI autoignition of ethanol by Sjöberg, Magnus, Dec, John E.

“…The thermodynamic and chemical effects of real EGR, simulated EGR, and individual EGR constituents (N 2, CO 2, and H 2O) on the HCCI autoignition processes of…”
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Using PIV Measurements to Determine the Role of the In-Cylinder Flow Field for Stratified DISI Engine Combustion by Zeng, Wei, Sjöberg, Magnus, Reuss, David

“…In a companion study [1], experimental observations in a stratified-charge DISI engine operated with late injection of E70 led to the formation of two…”
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Coupling a Lagrangian–Eulerian Spark-Ignition (LESI) model with LES combustion models for engine simulations by Kazmouz, Samuel J., Scarcelli, Riccardo, Cheng, Zhen, Dai, Meizhong, Pomraning, Eric, Senecal, Peter K., Sjöberg, Magnus

“…In the United States transportation sector, Light-Duty Vehicles (LDVs) are the largest energy consumers and CO 2 emitters. Electrification of LDVs is posed as…”
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Partial Fuel Stratification to Control HCCI Heat Release Rates: Fuel Composition and Other Factors Affecting Pre-Ignition Reactions of Two-Stage Ignition Fuels by Yang, Yi, Dec, John, Dronniou, Nicolas, Sjöberg, Magnus, Cannella, William

“…Homogeneous charge compression ignition (HCCI) combustion with fully premixed charge is severely limited at high-load operation due to the rapid pressure-rise…”
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Stoichiometric methanol autoignition and in-cycle knock suppression using direct water injection by Lius, Andreas, Sjöberg, Magnus, Cronhjort, Andreas, Olofsson, Ulf

“…Methanol as a fuel is gaining popularity due to its favorable properties and potential for sustainable production as bio- or electro-methanol. By operating…”
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Experimental and chemical-kinetic evaluation of a heavy-duty methanol PFI engine with direct water injection by Lius, Andreas, Sjöberg, Magnus, Cronhjort, Andreas, Olofsson, Ulf

“…Internal combustion engines are still widely used for propulsion in modern vehicles. Upcoming emission legislation imposes stricter limits on exhaust…”
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Chemical kinetics of octane sensitivity in a spark-ignition engine by Westbrook, Charles K., Mehl, Marco, Pitz, William J., Sjöberg, Magnus

“…This paper uses a chemical kinetic modeling approach to study the influences of fuel molecular structure on Octane Sensitivity (OS) in Spark Ignition (SI)…”
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Optical Investigation of a Partial Fuel Stratification Strategy to Stabilize Overall Lean Operation of a DISI Engine Fueled with Gasoline and E30 by Tornatore, Cinzia, Sjöberg, Magnus

“…This paper offers new insights into a partial fuel stratification (PFS) combustion strategy that has proven to be effective at stabilizing overall lean…”
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Influence of gasoline fuel formulation on lean autoignition in a mixed-mode-combustion (deflagration/autoignition) engine by Singh, Eshan, Vuilleumier, David, Kim, Namho, Sjöberg, Magnus

“…Stoichiometric spark-ignition engines suffer efficiency penalties due to throttling losses at low loads, a low specific-heat ratio of the stoichiometric…”
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Characteristics of spray and wall wetting under flash-boiling and non-flashing conditions at varying ambient pressures by He, Xu, Li, Yankai, Liu, Cong, Sjöberg, Magnus, Vuilleumier, David, Liu, Fushui, Yang, Qing

“…•The different spray morphology shapes and impingement process in a wide range of ambient pressures were investigated.•The specific evaporation rate of the…”
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Ability of Particulate Matter Index to describe sooting tendency of various gasoline formulations in a stratified-charge spark-ignition engine by Kim, Namho, Vuilleumier, David, He, Xu, Sjöberg, Magnus

“…This study investigates the ability of Particulate Matter Index (PMI) to describe the sooting behavior of various gasoline formulations in a stratified-charge…”
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Particulate Matter Emissions in Gasoline Direct-Injection Spark-Ignition Engines: Sources, Fuel Dependency, and Quantities by Singh, Eshan, Kim, Namho, Vuilleumier, David, Skeen, Scott, Cenker, Emre, Sjöberg, Magnus, Pickett, Lyle

“…•Experiments were conducted in metal and optical engine, and optically accessible spray chamber to investigate the dependence of engine-out soot on fuel…”
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Significance of RON, MON, and LTHR for Knock Limits of Compositionally Dissimilar Gasoline Fuels in a DISI Engine by Vuilleumier, David, Sjöberg, Magnus

“…Spark-ignition (SI) engine efficiency is typically limited by fuel auto-ignition resistance, which is described in practice by the Research Octane Number (RON)…”
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Combined Effects of Fuel and Dilution Type on Efficiency Gains of Lean Well-Mixed DISI Engine Operation with Enhanced Ignition and Intake Heating for Enabling Mixed-Mode Combustion by Sjöberg, Magnus, Zeng, Wei

“…Well-mixed lean or dilute SI engine operation can provide efficiency improvements relative to that of traditional well-mixed stoichiometric SI operation…”
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Impact of coolant temperature on piston wall-wetting and smoke generation in a stratified-charge DISI engine operated on E30 fuel by He, Xu, Li, Yankai, Sjöberg, Magnus, Vuilleumier, David, Ding, Carl-Philipp, Liu, Fushui, Li, Xiangrong

“…A late-injection strategy is typically adopted in stratified-charge direct injection spark ignition (DISI) engines to improve combustion stability for lean…”
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Measurements of laminar flame speeds and flame instability analysis of E30-air premixed flames at elevated temperatures and pressures by Yang, Qing, Liu, Zechang, Hou, Xinghe, He, Xu, Sjöberg, Magnus, Vuilleumier, David, Liu, Cong, Liu, Fushui

“…•Laminar flame speeds of E30-air mixture were measured.•Effects of temperature, pressure and dilution on laminar flame characteristics of E30 were…”
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Spectroscopic and chemical-kinetic analysis of the phases of HCCI autoignition and combustion for single- and two-stage ignition fuels by Hwang, Wontae, Dec, John, Sjöberg, Magnus

“…The temporal phases of autoignition and combustion in an HCCI engine have been investigated in both an all-metal engine and a matching optical engine…”
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Effect of Dibutyl Ether − Methanol Blend Ratios on Deflagration-Based and Autoignition-Based Knock in Spark-Ignition Engines by Singh, Eshan, Abboud, Rami, Strickland, Tyler, Kim, Namho, Lopez Pintor, Dario, Sjöberg, Magnus

“…•An extensive experimental campaign was carried out with fully renewable fuel blends of varying mixtures of dibutyl ether (0–40% v/v) and methanol.•A unique…”
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