Ethane oxidation and pyrolysis from 5 bar to 1000 bar: Experiments and simulation

Tranter, Robert S.; Raman, Ashwin Kumar Yegya; Sivaramakrishnan, R.; Brezinsky, Kenneth

doi:10.1002/kin.20067

Cited by 25 publications

(31 citation statements)

References 18 publications

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“…The experimental work performed here at UIC has obtained data over a pressure range spanning 5 bar at the low end, which is close to the upper limit of most other chemical shock tubes, and up to 1000 bar at the high end, beyond the pressure capabilities of other chemical shock tubes. The experimental study of ethane combustion [29][30][31] spans P=5-1000 atm, T=1000-1500 K, oxidation (Φ=1, 5) and pyrolysis. Much of the higher pressure data 29,30 has been discussed in detail in prior DOE annual reports.…”

Section: (D) Ethane Combustionmentioning

confidence: 99%

“…Much of the higher pressure data 29,30 has been discussed in detail in prior DOE annual reports. The experimental work in this annual period has been extended to pressures as low as 5 atm and the entire data set has been simulated with a single comprehensive chemical kinetic model 31 that can capture the experimental trends over the wide range of pressures, temperature and stoichiometry.…”

Section: (D) Ethane Combustionmentioning

confidence: 99%

“…The changes made to this model are described in more detail in the relevant publications 30,31 . The predictive capability of the widely used GRI-Mech 3.0 33 was also tested against the entire data set.…”

Section: (D) Ethane Combustionmentioning

confidence: 99%

“…Recently in this laboratory a single detailed kinetic model for ethane oxidation and pyrolysis has been developed with shock tube data that were obtained over an extensive pressure range from 5-1000 bar 31 . The model, referred to as the modified Miller model, is based a series of work by Miller and co-workers 32 .…”

Section: (F) Shock Tube Characterizationmentioning

confidence: 99%

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Very High Pressure Single Pulse Shock Tube Studies of Aromatic Species

Brezinsky¹

2006

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Section: (D) Ethane Combustionmentioning

confidence: 99%

Section: (D) Ethane Combustionmentioning

confidence: 99%

Section: (D) Ethane Combustionmentioning

confidence: 99%

Section: (F) Shock Tube Characterizationmentioning

confidence: 99%

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Very High Pressure Single Pulse Shock Tube Studies of Aromatic Species

Brezinsky¹

2006

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“…Raghu et al [1] have performed calculations and experiments for CH 4 /C 2 H 6 /O 2 /NO flames under the conditions of equivalence ratio of 1.5 at pressure of 1.0 MPa in jet stirred reactor (JSR). In their calculations, the detailed mechanism proposed by Tranter et al [2] based on GRI-Mech 3.0 [3] was used. They reported that the experimental results for concentration profile in JSR were relatively good agreement with calculation.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Extremely-rich CH4/O2/H2O Premixed Flames at High Pressure and High Temperature Considering Production of Higher Hydrocarbons

Kumagami

Ogami

Tamaki

et al. 2010

JTST

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Numerical analysis of CH 4 /O 2 /H 2 O laminar premixed flame under various conditions of pressure, equivalence ratio and steam concentration was performed using GRI-Mech 3.0 and the mechanism proposed by Davis and Law, which consists of C1 to C6 hydrocarbons in addition to GRI-Mech 3.0. The pressure dependence of laminar burning velocity and flame structure under fuel-rich conditions was focused on. Effects of the formation of higher hydrocarbons under fuel-rich conditions were also clarified using the mechanism proposed by Davis and Law. Results showed that for extremely fuel-rich conditions, laminar burning velocity increases as pressure increases for both mechanisms. The increase of laminar burning velocity is caused by the shift of the oxidation pathway of CH 3 radical from the C2 Route to the C1 Route. The formation of C3-C6 hydrocarbons has only a small effect on laminar burning velocity. Under fuel-rich conditions, super-adiabatic flame temperature (SAFT) occurs and its pressure dependency was clarified.

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Chemical kinetic simulations behind reflected shock waves

Tang

Brezinsky

2005

Int J of Chemical Kinetics

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Chemical kinetic simulations that more accurately consider reaction conditions behind reflected shock waves in a high pressure shock tube have been conducted by accounting for (1) time-dependent temperature and pressure variations in contrast to assuming constant temperature and pressure, (2) the inclusion of reactions during quenching by cooling in contrast to the assumption of zero kinetic contributions, and (3) real gas behaviors in contrast to assuming ideal gas conditions. The primary objective of the current work is to assess the degree of uncertainty associated with assuming constant temperature and pressure and that no reactions occur during the finite time of quenching and prefect gas behavior. The assessment of the subsequent effect of the uncertainty on chemical kinetic modeling is evaluated by conducting extensive comparative studies. In order to achieve this purpose, available CHEMKIN II and CHEMKIN Real Gas codes were utilized and modified to adopt the proposed approaches. From our computational experiments, it is found: (1) For shock tube experiment with less than a 15% endwall pressure increase, the conventional assumptions lead to reasonable accuracy in predicting stable species; (2) during reaction quenching, the consumption of radical species occurs efficiently and is nearly complete once the pressure drops to 50% of its highest value, but concentrations of stable species are insignificantly perturbed by reactions occurring during quenching; and (3) at elevated pressures, the real gas effects, which are a combination of nonideal P-V-T (state variables), thermodynamic, and kinetic behaviors, affect kinetics by speeding the reaction progress up slightly and do not significantly influence the development or validation of a detailed kinetic model from shock tube data that are obtained in a wide temperature range. C 2005 Wiley Periodicals, Inc. Int J Chem Kinet 38: 2006

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Ethane oxidation and pyrolysis from 5 bar to 1000 bar: Experiments and simulation

Cited by 25 publications

References 18 publications

Very High Pressure Single Pulse Shock Tube Studies of Aromatic Species

Very High Pressure Single Pulse Shock Tube Studies of Aromatic Species

Numerical Analysis of Extremely-rich CH4/O2/H2O Premixed Flames at High Pressure and High Temperature Considering Production of Higher Hydrocarbons

Chemical kinetic simulations behind reflected shock waves

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