Shock tube study of normal heptane first-stage ignition near 3.5 atm
TLDR
In this paper, a review of the literature has revealed that most of the first-stage ignition delay time and species measurement data for normal heptane have been obtained at elevated pressures, rather than at relatively low pressures where many other important experimental techniques such as jet-stirred reactors and flow reactors can provide corroborating results.About:
This article is published in Combustion and Flame.The article was published on 2018-12-01 and is currently open access. It has received 20 citations till now. The article focuses on the topics: Ignition system & Shock tube.read more
Citations
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Journal ArticleDOI
An experimental and kinetic modeling study of the oxidation of hexane isomers: Developing consistent reaction rate rules for alkanes
Kuiwen Zhang,Colin Banyon,Ultan Burke,Goutham Kukkadapu,Scott W. Wagnon,Marco Mehl,Henry J. Curran,Charles K. Westbrook,William J. Pitz +8 more
TL;DR: The work by as discussed by the authors was performed under the auspices of the U.S. Department of Energy (DOE), Contract DE-AC52-07NA27344 and was conducted as part of the Co-Optimization of Fuels & Engines (Co-Optima) project sponsored by the DOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies and Vehicle Technologies Offices.
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Insights into engine autoignition: Combining engine thermodynamic trajectory and fuel ignition delay iso-contour
TL;DR: In this paper, a general approach to analyze autoignition in arbitrary spark-ignition (SI) and advanced compression ignition (ACI) engine conditions by combining thermodynamic pressure-temperature trajectory and the fuel ignition delay iso-contours is presented.
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A shock tube study of n-heptane, iso-octane, n-dodecane and iso-octane/n-dodecane blends oxidation at elevated pressures and intermediate temperatures
TL;DR: In this paper, the ignition delay times (IDT) of n-heptane, iso-octane, n-dodecane, and iso-Octane/n-decane blends, in stoichiometric mixtures with air, were measured behind reflected shock waves in a heated, high-pressure shock tube.
Journal ArticleDOI
Experimental characterization of n-heptane low-temperature oxidation products including keto-hydroperoxides and highly oxygenated organic molecules (HOMs)
Nesrine Belhadj,Nesrine Belhadj,Roland Benoit,Philippe Dagaut,Maxence Lailliau,Maxence Lailliau +5 more
TL;DR: In this paper, the oxidation of n-heptane was performed in a jet-stirred reactor (JSR) at 10 atm, an equivalence ratio of 0.5, and an initial fuel concentration of 1000-ppm at a residence time of 1 s in the temperature range 580-790 K (from cool-flame, negative temperature coefficient NTC, to intermediate temperature oxidation regime), and with 5000 ppm of fuel at 647-k and a residence times of 1.5 s.
NTC-affected ignition in nonpremixed counterflow
Chung K. Law,Peng Zhao +1 more
TL;DR: In this article, the role of the negative temperature coefficient (NTC) chemistry on ignition was studied for both homogeneous mixtures and non-premixed counterflow, and the possible existence of one and two-staged ignition in the counterflow was observed, and its dependence on the flow strain rate and system pressure were identified.
References
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A Comprehensive Modeling Study of n-Heptane Oxidation
TL;DR: In this article, a detailed chemical kinetic mechanism has been developed and used to study the oxidation of n-heptane in flow reactors, shock tubes, and rapid compression machines, where the initial pressure ranged from 1-42 atm, the temperature from 550-1700 K, the equivalence ratio from 0.3-1.5, and nitrogen-argon dilution from 70-99%.
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Fitting curves to data using nonlinear regression: a practical and nonmathematical review.
TL;DR: This article reviews the use of nonlinear regression in a practical and nonmathematical manner to demystify non linear regression so that both its power and its limitations will be appreciated.
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Progress and recent trends in homogeneous charge compression ignition (HCCI) engines
TL;DR: In this paper, five types of models applied to HCCI engine modelling are discussed in the present paper, and specific strategies for diesel-fuelled, gasoline-fined, and other alternative fuelled combustion are also discussed.
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Kinetic modeling of gasoline surrogate components and mixtures under engine conditions
TL;DR: In this article, an improved version of the kinetic model was used to analyze the combustion behavior of several components relevant to gasoline surrogate formulation, focusing attention on the mixing effects of the fuel components.