Search Results - "Dec, John"

Advanced compression-ignition engines—understanding the in-cylinder processes by Dec, John E.

“…Advanced compression-ignition (CI) engines can deliver both high efficiencies and very low NO X and particulate (PM) emissions. Efficiencies are comparable to…”
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Boosted HCCI for High Power without Engine Knock and with Ultra-Low NOx Emissions - using Conventional Gasoline by Dec, John E., Yang, Yi

“…The potential of boosted HCCI for achieving high loads has been investigated for intake pressures (Pin) from 100 kPa (naturally aspirated) to 325 kPa absolute…”
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Boosted HCCI - Controlling Pressure-Rise Rates for Performance Improvements using Partial Fuel Stratification with Conventional Gasoline by Dec, John E., Yang, Yi, Dronniou, Nicolas

“…This study investigates the potential of partial fuel stratification for reducing the knocking propensity of intake-boosted HCCI engines operating on…”
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Investigating the Development of Thermal Stratification from the Near-Wall Regions to the Bulk-Gas in an HCCI Engine with Planar Imaging Thermometry by Dronniou, Nicolas, Dec, John

“…A tracer-based single-line PLIF imaging technique using a unique optical configuration that allows simultaneously viewing the bulk-gas and the boundary layer…”
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Ethanol Autoignition Characteristics and HCCI Performance for Wide Ranges of Engine Speed, Load and Boost by Sjoberg, Magnus, Dec, John E.

“…The characteristics of ethanol autoignition and the associated HCCI performance are examined in this work. The experiments were conducted over wide ranges of…”
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Tailoring HCCI heat-release rates with partial fuel stratification: Comparison of two-stage and single-stage-ignition fuels by Yang, Yi, Dec, John E., Dronniou, Nicolas, Sjöberg, Magnus

“…This work concerns one of the major issues restricting the application of homogeneous charge compression-ignition (HCCI) engines, overly rapid combustion at…”
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Increasing the Load Range, Load-to-Boost Ratio, and Efficiency of Low-Temperature Gasoline Combustion (LTGC) Engines by Dec, John E., Dernotte, Jeremie, Ji, Chunsheng

“…Low-temperature gasoline combustion (LTGC) has the potential to provide gasoline-fueled engines with efficiencies at or above those of diesel engines and…”
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Simulating combustion of a seven-component surrogate for a gasoline/ethanol blend including soot formation and comparison with experiments by Cuoci, Alberto, Avedisian, C. Thomas, Brunson, Jordan D., Guo, Songtao, Dalili, Alireza, Wang, Yujie, Mehl, Marco, Frassoldati, Alessio, Seshadri, Kalyanasundaram, Dec, John E., Lopez-Pintor, Dario

“…Combustion of a seven-component surrogate for a research grade 87 octane gasoline mixed with 10% ethanol is investigated experimentally and numerically from…”
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Investigation of the Sources of Combustion Noise in HCCI Engines by Dernotte, Jeremie, Dec, John, Ji, Chunsheng

“…This article presents an investigation of the sources combustion-generated noise and its measurement in HCCI engines. Two cylinder-pressure derived parameters,…”
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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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Boosted HCCI Combustion Using Low-Octane Gasoline with Fully Premixed and Partially Stratified Charges by Yang, Yi, Dec, John, Dronniou, Nicolas, Cannella, William

“…High-load HCCI combustion has recently been demonstrated with conventional gasoline using intake pressure boosting. The key is to control the high combustion…”
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Effects of Gasoline Reactivity and Ethanol Content on Boosted, Premixed and Partially Stratified Low-Temperature Gasoline Combustion (LTGC) by Dec, John E., Yang, Yi, Dernotte, Jeremie, Ji, Chunsheng

“…Low-temperature gasoline combustion (LTGC), based on the compression ignition of a premixed or partially premixed dilute charge, can provide thermal…”
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Improving Efficiency and Using E10 for Higher Loads in Boosted HCCI Engines by Dec, John E., Yang, Yi, Dronniou, Nicolas

“…This study systematically investigates the effects of various engine operating parameters on the thermal efficiency of a boosted HCCI engine, and the potential…”
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Understanding fuel anti-knock performances in modern SI engines using fundamental HCCI experiments by Yang, Yi, Dec, John E., Sjöberg, Magnus, Ji, Chunsheng

“…Modern spark-ignition (SI) engine technologies have considerably changed in-cylinder conditions under which fuel autoignition and engine knock take place. In…”
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Characteristics of Isopentanol as a Fuel for HCCI Engines by Yang, Yi, Dec, John, Dronniou, Nicolas, Simmons, Blake

“…Long chain alcohols possess major advantages over the currently used ethanol as bio-components for gasoline, including higher energy content, better engine…”
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Energy Distribution Analysis in Boosted HCCI-like / LTGC Engines - Understanding the Trade-Offs to Maximize the Thermal Efficiency by Dernotte, Jeremie, Dec, John E., Ji, Chunsheng

“…A detailed understanding of the various factors affecting the trends in gross-indicated thermal efficiency with changes in key operating parameters has been…”
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Characterizing the Development of Thermal Stratification in an HCCI Engine Using Planar-Imaging Thermometry by Dec, John E, Hwang, Wontae

“…A planar temperature imaging diagnostic has been developed and applied to an investigation of naturally occurring thermal stratification in an HCCI engine…”
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Comparing late-cycle autoignition stability for single- and two-stage ignition fuels in HCCI engines by Sjöberg, Magnus, Dec, John E.

“…The characteristics of autoignition after top-dead-center (TDC) for both single- and two-stage ignition fuels have been investigated in a homogeneous charge…”
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Bio-Ketones: Autoignition Characteristics and Their Potential as Fuels for HCCI Engines by Yang, Yi, Dec, John

“…This paper studies autoignition characteristics and HCCI engine combustion of ketone fuels, which are important constituents of recently discovered…”
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Computational study of the pressure dependence of sequential auto-ignition for partial fuel stratification with gasoline by Wolk, Benjamin, Chen, Jyh-Yuan, Dec, John E.

“…Fuel stratification is a potential strategy for reducing the maximum pressure rise rate in HCCI engines. Simulations of Partial Fuel Stratification (PFS) have…”
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