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Subject = burning velocities;
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Displaying Results 1 - 7 of 7 on page 1 of 1
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A comprehensive experimental and modeling study of isobutene oxidation
(2016)
Zhou, Chong-Wen; Li, Yang; O'Connor, Eoin; Somers, Kieran P.; Thion, Sébastien; Ke...
A comprehensive experimental and modeling study of isobutene oxidation
(2016)
Zhou, Chong-Wen; Li, Yang; O'Connor, Eoin; Somers, Kieran P.; Thion, Sébastien; Keesee, Charles; Mathieu, Olivier; Petersen, Eric L.; DeVerter, Trent A.; Oehlschlaeger, Matthew A.; Kukkadapu, Goutham; Sung, Chih-Jen; Alrefae, Majed; Khaled, Fathi; Farooq, Aamir; Dirrenberger, Patricia; Glaude, Pierre-Alexandre Glaude; Battin-Leclerc, Frédérique; Santner, Jeffrey; Ju, Yiguang
Abstract:
Isobutene is an important intermediate in the pyrolysis and oxidation of higher-order branched alkanes, and it is also a component of commercial gasolines. To better understand its combustion characteristics, a series of ignition delay time (IDT) and laminar flame speed (LFS) measurements have been performed. In addition, flow reactor speciation data recorded for the pyrolysis and oxidation of isobutene is also reported. Predictions of an updated kinetic model described herein are compared with each of these data sets, as well as with existing jet-stirred reactor (JSR) species measurements.IDTs of isobutene oxidation were measured in four different shock tubes and in two rapid compression machines (RCMs) under conditions of relevance to practical combustors. The combination of shock tube and RCM data greatly expands the range of available validation data for isobutene oxidation models to pressures of 50 atm and temperatures in the range 666-1715 K. Isobutene flame speeds were measur...
http://hdl.handle.net/10379/6030
Marked
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A comprehensive experimental and modeling study of isobutene oxidation
(2018)
Zhou, Chong-Wen; Li, Yang; O'Connor, Eoin; Somers, Kieran P.; Thion, Sébastien; Ke...
A comprehensive experimental and modeling study of isobutene oxidation
(2018)
Zhou, Chong-Wen; Li, Yang; O'Connor, Eoin; Somers, Kieran P.; Thion, Sébastien; Keesee, Charles; Mathieu, Olivier; Petersen, Eric L.; DeVerter, Trent A.; Oehlschlaeger, Matthew A.; Kukkadapu, Goutham; Sung, Chih-Jen; Alrefae, Majed; Khaled, Fathi; Farooq, Aamir; Dirrenberger, Patricia; Glaude, Pierre-Alexandre; Battin-Leclerc, Frédérique; Santner, Jeffrey; Ju, Yiguang
http://hdl.handle.net/10379/14536
Marked
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A comprehensive modeling study of hydrogen oxidation
(2018)
Ó Conaire, Marcus; Curran, Henry J.; Simmie, John M.; Pitz, William J.; Westbrook, Char...
A comprehensive modeling study of hydrogen oxidation
(2018)
Ó Conaire, Marcus; Curran, Henry J.; Simmie, John M.; Pitz, William J.; Westbrook, Charles K.
http://hdl.handle.net/10379/9633
Marked
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An ignition delay and kinetic modeling study of methane, dimethyl ether, and their mixtures at high pressures
(2016)
Burke, Ultan; Somers, Kieran P.; O’Toole, Peter; Zinner, Chis M.; Marquet, Nicolas; Bou...
An ignition delay and kinetic modeling study of methane, dimethyl ether, and their mixtures at high pressures
(2016)
Burke, Ultan; Somers, Kieran P.; O’Toole, Peter; Zinner, Chis M.; Marquet, Nicolas; Bourque, Gilles; Petersen, Eric L.; Metcalfe, Wayne K.; Serinyel, Zeynep; Curran, Henry J.
Abstract:
Journal article
The development of accurate chemical kinetic models capable of predicting the combustion of methane and dimethyl ether in common combustion environments such as compression ignition engines and gas turbines is important as it provides valuable data and understanding of these fuels under conditions that are difficult and expensive to study in the real combustors. In this work, both experimental and chemical kinetic model-predicted ignition delay time data are provided covering a range of conditions relevant to gas turbine environments (T = 600-1600 K, p = 7-41 atm, phi = 0.3, 0.5, 1.0, and 2.0 in 'air' mixtures). The detailed chemical kinetic model (Mech_56.54) is capable of accurately predicting this wide range of data, and it is the first mechanism to incorporate high-level rate constant measurements and calculations where available for the reactions of DME. This mechanism is also the first to apply a pressure-dependent treatment to the low-temperature...
http://hdl.handle.net/10379/6102
Marked
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Comparison of the performance of several recent syngas combustion mechanisms
(2016)
Olm, Carsten; Zsély, István Gy; Varga, Tamás; Curran, Henry J.
Comparison of the performance of several recent syngas combustion mechanisms
(2016)
Olm, Carsten; Zsély, István Gy; Varga, Tamás; Curran, Henry J.
Abstract:
Journal article
A large set of experimental data was accumulated for syngas combustion: ignition studies in shock tubes (732 data points in 62 datasets) and in rapid compression machines (492/47), flame velocity determinations (2116/217) and species concentration measurements from flow reactors (1104/58), shock tubes (436/21) and jet-stirred reactors (90/3). In total, 4970 data points in 408 datasets from 52 publications were collected covering wide ranges of temperature T, pressure p, equivalence ratio phi, CO/H-2 ratio and diluent concentration X-dil. 16 recent syngas combustion mechanisms were tested against these experimental data, and the dependence of their predictions on the types of experiment and the experimental conditions was investigated. Several clear trends were found. Ignition delay times measured in rapid compression machines (RCM) and in shock tubes (ST) at temperatures below 1000 K could not be well-predicted. Particularly for shock tubes, facility effects at t...
http://hdl.handle.net/10379/6103
Marked
Mark
Development of a joint hydrogen and syngas combustion mechanism based on an optimization approach
(2016)
Curran, Henry J.
Development of a joint hydrogen and syngas combustion mechanism based on an optimization approach
(2016)
Curran, Henry J.
Abstract:
Journal article
A comprehensive and hierarchical optimization of a joint hydrogen and syngas combustion mechanism has been carried out. The Keromnes et al. (Combust Flame, 2013, 160, 995-1011) mechanism for syngas combustion was updated with our recently optimized hydrogen combustion mechanism (Varga et al., Proc Combust Inst, 2015, 35, 589-596) and optimized using a comprehensive set of direct and indirect experimental data relevant to hydrogen and syngas combustion. The collection of experimental data consisted of ignition measurements in shock tubes and rapid compression machines, burning velocity measurements, and species profiles measured using shock tubes, flow reactors, and jet-stirred reactors. The experimental conditions covered wide ranges of temperatures (800-2500 K), pressures (0.5-50 bar), equivalence ratios (phi = 0.3-5.0), and C/H ratios (0-3). In total, 48 Arrhenius parameters and 5 third-body collision efficiency parameters of 18 elementary reactions were optimi...
http://hdl.handle.net/10379/6097
Marked
Mark
Ignition delay times, laminar flame speeds, and mechanism validation for natural gas/hydrogen blends at elevated pressures
(2016)
Donohoe, Nicola; Heufer, Alexander; Metcalfe, Wayne K.; Curran, Henry J.; Davis, Mariss...
Ignition delay times, laminar flame speeds, and mechanism validation for natural gas/hydrogen blends at elevated pressures
(2016)
Donohoe, Nicola; Heufer, Alexander; Metcalfe, Wayne K.; Curran, Henry J.; Davis, Marissa L.; Mathieu, Olivier; Plichta, Drew; Morones, Anibal; Petersen, Eric L.; Güthe, Felix
Abstract:
New experimental ignition delay time data measured in both a shock tube and in a rapid compression machine were taken to determine the increase in reactivity due to the addition of hydrogen to mixtures of methane and natural gas. Test conditions were determined using a statistical design of experiments approach which allows the experimenter to probe a wide range of variable factors with a comparatively low number of experimental trials. Experiments were performed at 1, 10, and 30 atm in the temperature range 850-1800 K, at equivalence ratios of 0.3, 0.5, and 1.0 and with dilutions ranging from 72% to 90% by volume. Pure methane- and hydrogen-fueled mixtures were prepared in addition to two synthetic 'natural gas'-fueled mixtures comprising methane, ethane, propane, n-butane and n-pentane, one comprising 81.25/10/5/2.511.25% while the other consisted of 62.5/20/10/5/2.5% C-1/C-2/C-3/C-4/Cs components to encompass a wide range of possible natural gas compositions. A heated, ...
http://hdl.handle.net/10379/6111
Displaying Results 1 - 7 of 7 on page 1 of 1
Bibtex
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Peer Review Status
Peer-reviewed (5)
Unknown (2)
Year
2018 (2)
2016 (5)
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