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Frederick L. Dryer
Princeton University
329Publications
66H-index
16kCitations
Publications 329
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#1Francis M. Haas (Princeton University)H-Index: 15
#2Sang Hee Won (Princeton University)H-Index: 27
Last.Cécile PeraH-Index: 1
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Abstract Derived Cetane Numbers (DCNs) of engine lubricating oil/multicomponent 95 Research Octane Number (RON) gasoline surrogate mixtures were measured in an Ignition Quality Tester (IQT). Measurements separately assess the effects of calcium- and magnesium-based detergent additive fraction, oil viscosity, oil degradation, and base oil classification on mixture ignition propensity at conditions with relevance to low speed pre-ignition (LSPI) in gasoline engines. Testing of 0–25% (by mass) oil ...
#1Tanvir Farouk (USC: University of South Carolina)H-Index: 17
#2Daniel L. Dietrich (Glenn Research Center)H-Index: 13
Last.Frederick L. Dryer (Princeton University)H-Index: 66
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Abstract Transient, isolated n -alkane droplet combustion is simulated at elevated pressure for helium-diluent substituted-air mixtures. We report the presence of unique quasi-steady, three-stage burning behavior of large sphero-symmetric n -alkane droplets at these elevated pressures and helium substituted ambient fractions. Upon initiation of reaction, hot-flame diffusive burning of large droplets is initiated that radiatively extinguishes to establish cool flame burning conditions in nitrogen...
#1Anthony J. Marchese (CSU: Colorado State University)H-Index: 23
#2Morgan DeFoort (CSU: Colorado State University)H-Index: 9
Last.Nathan LorenzH-Index: 2
view all 7 authors...
#1Sang Hee Won (USC: University of South Carolina)H-Index: 3
#2Francis M. Haas (Rowan University)H-Index: 15
Last.Frederick L. Dryer (Princeton University)H-Index: 66
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Abstract The global chemical character of complex chemical fuel mixtures is explicitly determined by evaluating the abundances of chemical functional groups present within them rather than by applying a traditional interpretation based upon molecular species composition. Statistical analyses of the relationships among each chemical functional group and specific combustion property targets (CPTs) of the fuel are rigorously developed. The results demonstrate that the four CPTs currently used in av...
#1Tien Mun FoongH-Index: 6
#2Michael J. BrearH-Index: 16
Last.Frederick L. DryerH-Index: 66
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This paper presents an experimental and numerical investigation of the autoignition of ethanol blended with several primary reference fuels (PRFs) and toluene reference fuels (TRFs) in a Cooperative Fuel Research (CFR) engine. Autoigniting, in-cylinder pressure traces are acquired under standard research octane number (RON) conditions. Equivalent, non-autoignitiing traces are obtained by adding a small amount of tetraethyl lead (TEL) to each fuel to suppress knock, and these are used to calibrat...
#1Tanvir Farouk (USC: University of South Carolina)H-Index: 17
#2Yuhao Xu (Cornell University)H-Index: 7
Last.Frederick L. Dryer (Princeton University)H-Index: 66
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Abstract We report experiments and detailed numerical modeling of mixtures of primary reference fuel (PRF) droplets consisting of n -heptane and iso -octane with initial droplet diameters of 0.5 and 3.51 mm. The results show a quasi-steady, low temperature (or “Cool Flame” ( CF )) droplet burning mode that stems from a varying two-stage chemical kinetic behavior of the combustion chemistry. The simulations further illustrate, that the CF droplet burning mode in 1 atm air is dependent upon the is...
#1Sheikh F. AhmedH-Index: 3
#2Jeffrey SantnerH-Index: 12
Last.Tanvir FaroukH-Index: 17
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Part 1 (10.1021/acs.energyfuels.6b00420) of this two part series presented a computational study of NOx formation during methane and ethylene combustion, representative of small fuel fragments present in natural gas and chemical processing. The influence of fuel chemistry, reaction temperature history, and inert dilution was examined using popular models present in the literature. The present work extends the study to hydrogen-rich conditions to remove the fuel variability dependency of NOx and ...
#1Jeffrey SantnerH-Index: 12
#2Sheikh F. AhmedH-Index: 3
Last.Frederick L. DryerH-Index: 66
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Along with other nitrogen oxides, nitric oxide (NO) is a regulated air pollutant that is primarily produced as a result of combustion processes. This pollutant is produced in every combustion system that uses oxidizer mixtures containing N2 and/or fuels that contain organically bound nitrogen. To design combustors to minimize NO emissions, high-fidelity computational models for NO production and NO/NO2 interconversion are required. To improve model performance and understanding of NO production ...
#1Chong-Wen Zhou (National University of Ireland, Galway)H-Index: 13
#2Yang Li (National University of Ireland, Galway)H-Index: 4
Last.Matthew A. Oehlschlaeger (RPI: Rensselaer Polytechnic Institute)H-Index: 31
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The work at NUI Galway was supported by Saudi Aramco under the FUELCOM program. Collaboration between NUI Galway and LRGP enters in the frame the COST Action CM1404.
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