The overall reaction concept in premixed, laminar, steady-state flames. II. Initial temperatures and pressures

Coffee, Terence P.; Kotlar, Anthony J.; Miller, Martin S.

doi:10.1016/0010-2180(84)90078-6

Cited by 58 publications

(9 citation statements)

References 8 publications

(3 reference statements)

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“…The idea of this method is similar to that of Coffee et al [Coffee, 1984], who determined 1>-dependent one-step reaction parameters, using detailed numerical chemistry data on the temperature dependence of the burning velocity. The method ensures that differences in the burning velocity, due to local temperature and concentration variations near the flame front are taken into account by the rate equation.…”

Section: Numerical and Chemical Modelmentioning

confidence: 98%

Two-dimensional Methane/Air Flame

Lange

Goey

1993

Combustion Science and Technology

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ABSTRACT-First results are presented of a new flame code for modeling transport processes in twodimensional flames using a one-step reaction model. The code is applied to a study on the flame shape of methane/air flames on a triple-slit burner. The results compare reasonably well with experimental data. We expect further improvement when more accurate measurements become available. These measurements are necessary to come to a more definite conclusion on the reliability of the model.

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Section: Numerical and Chemical Modelmentioning

confidence: 98%

Two-dimensional Methane/Air Flame

Lange

Goey

1993

Combustion Science and Technology

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“…The differences are in the choice of experimental data which are used to derive kinetic parameters, assumed reaction orders, and the optimization procedure. Coffee et al [7,8] used the flame heat release profile obtained from the calculations with the detailed kinetic model as a fitting parameter to obtain global kinetic parameters. In this work, we directly used the experimental data on burning velocity dependencies on the equivalence ratio.…”

Section: Problem Formulationmentioning

confidence: 99%

“…It should be noted that due to the apparent simplifications of the chemical process, this alternative cannot, obviously, be completely accurate. The simplified and global kinetic models were considered in detail by several authors [1,2,7,8,15,26,27]. Several procedures and methods for deriving global kinetic parameters were suggested and used in [3,7,8,11,22,26].…”

Section: Introductionmentioning

confidence: 99%

Determination of global kinetic parameters by optimization procedure using burning velocity measurements

Grenkin

Chebotarëv

Babushok

et al. 2018

Math. Model. Nat. Phenom.

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The optimization procedure was developed to derive the global kinetic parameters using experimental dependence of burning velocity on the equivalence ratio. The simple model of laminar premixed flame propagation with assumed constant parameters was used to demonstrate the features of the suggested procedure. The suggested method allows finding optimal parameters for the defined functional dependence of the reaction rate on the temperature and reactant concentrations. The dependence of combustion adiabatic temperature on equivalence ratio is assumed to be known from the flame equilibrium calculations. The global kinetic parameters of combustion reaction were determined for methane, ethylene and propane mixtures with air on the basis of experimental data on burning velocity as function of the equivalence ratio. The calculated overall kinetic parameters are compared with parameters obtained by other methods within similar global model.

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“…There is a different approach to determining the rate-controlling combustion stage based on an analysis of the heat release function determined from experimental temperature profiles [21,22] or from the heat release function obtained using a multistep kinetic mechanism [23]. Obviously, it is a comparison of the multistep kinetic mechanism with the kinetic parameters of the heat release function that allows one to establish the rate-controlling stage of the process most reliably.…”

Section: Introductionmentioning

confidence: 99%

On the nature of the burning rate-controlling reaction of energetic materials for the gas-phase model

Sinditskii

2007

Combust Explos Shock Waves

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For model systems with known kinetics of elementary reactions (CH 3 NO 2 and HN 3 ), temperature ranges are established in which the rate-controlling reactions are the initial endothermic decomposition of the starting material or the subsequent secondary reactions. Heat release in reactions of NO 2 , NO, and N 2 O with various fuels, such as CH 2 O, CO, H 2 , and HCN, is modeled to establish the kinetic parameters and nature of the rate-controlling reactions in gas flames of nitro compounds. It is shown that the activation energy of the heat-release reaction due to the interaction of NO 2 with a hydrocarbon fuel (which is characteristic of the first flame of nitro compounds) is in the range of 29-33 kcal/mole, depending on the type of fuel. According to the calculations performed, the activation energy of the rate-controlling heat-releasing process due to the deoxidation of NO and N 2 O (which is typical of the second flame of nitro compounds) is 43-58 kcal/mole. In the range of high pressures, where the flames merge, the kinetic parameters of heat release are determined by the reactions of the most reactive nitrogen oxide NO 2 .

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The overall reaction concept in premixed, laminar, steady-state flames. II. Initial temperatures and pressures

Cited by 58 publications

References 8 publications

Two-dimensional Methane/Air Flame

Two-dimensional Methane/Air Flame

Determination of global kinetic parameters by optimization procedure using burning velocity measurements

On the nature of the burning rate-controlling reaction of energetic materials for the gas-phase model

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