A theoretical analysis of chemical and physical processes in an ozone flame

Campbell, Edwin S.

doi:10.1016/0009-2509(65)85020-5

Cited by 9 publications

(3 citation statements)

References 17 publications

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“…From the L-J parameters for 0 and O2, (PDI2)LJ can be formed using the appropriate analogue of equation (13) and equation (12) (yj = p 2 = 0 implies 5=1). This computation yields the fit (p D 12)LJ = 2 -01 X IO- 5 Tl-687 atmos-cm 2 -s-1 over the range 300K -2000K. The ratio (pDi2)LJ to pDi2 shows a monotonic decrease from 0.92 at 300K to 0.78 at 2000K.…”

Section: Becausementioning

confidence: 96%

“…Warnatz 3 has recently and independently assembled a finite difference code that, like ours, requires species dependent input coefficients. He has found that the discrepancies in the model results of Dixon-Lewis,1 Wilde,2 Bledjian 4 and Campbell 5 are traceable to the different expressions for the input coefficients each used. In the light of this discussion, 3 we confine our remarks to a comparison of our model results with those of Warnatz.…”

Section: V Yastrebov "The Physical Chemistry Of Concentrated Ozomentioning

confidence: 99%

“…With few exceptions, 1 " 3 most other models of the ozone flame have emphasized mathematical approaches or numerical techniques. [4][5][6][7] xhat is, their primary objective has been the development of methods of solution rather than detailed comparisons of model predictions and experimental results. Consequently these authors either employed mathematically nonessential assumptions that simplified the transport or employed kinetic coefficients that are incompatible with what is presently known, or both.…”

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confidence: 99%

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The Detailed Modeling of Premixed, Laminar Steady-State Flames to Obtain Validated Reaction Networks. I. Ozone

Heimerl¹,

Coffee²

1980

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We have employed species dependent input coefficients for the test case ozone in a one-dimensional model of a premixed, laminar, steady-state flame. Convenient expressions for the input coefficients are developed. These coefficients are based on independent measurements, i.e., no arbitrary parameters are used in the model. The governing equations are solved using a relaxation technique and the partial differential equation package, PDEC0L, developed by Madsen and Sincovec. Species and temperature profiles and the burning velocities ^nntiniiiftd-i-U DD,^ FORM AN n 1473 EDITtON OF I MOV 65 (S OBSOLETE UNCLASSIFIED SECURITY CLASSIFlCATtOW OF THIS PAGE ^1»?»n Data Entered) SECURITY CLASSIFICATION OF THIS PAGE^Tlan Data Bntend) 20. ABSTRACT (Continued) are found over the range of initial ozone mole fraction of 0.25 to 1.00. The computed burning velocities are no more than 30% greater than the measurements of Streng and Grosse. Comparison with the computed results of Warnatz shows agreement within ± 12%, even though he used quite different expressions for some of the kinetic coefficients. These differences are manifest in the atomic oxygen and temperature profiles at an initial ozone mole fraction of unity. A comparison of the model profiles indicates a need for measurements or ob 'initio calculations for the rate coefficient for the reaction O3 + 0-> 2 02 at temper atures in the range 1500-2000K.

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Section: Becausementioning

confidence: 96%

Section: V Yastrebov "The Physical Chemistry Of Concentrated Ozomentioning

confidence: 99%

mentioning

confidence: 99%

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The Detailed Modeling of Premixed, Laminar Steady-State Flames to Obtain Validated Reaction Networks. I. Ozone

Heimerl¹,

Coffee²

1980

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Calculation of the Structure of Laminar Flat Flames I: Flame Velocity of Freely Propagating Ozone Decomposition Flames

Warnatz

1978

Ber Bunsenges Phys Chem

103

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A method is described which allows to include complete multicomponent formulation of diffusion and heat conduction in the solution of the time‐dependent conservation equations of a laminar flat flame. Calculations with simplified transport models are presented for comparison. — For the ozone decomposition flame this method is used for the determination of the flame velocity of freely propagating flames as a function of the initial ozone oxygen ratio. There is agreement with experimental values. Discrepancies between calculated results given in the literature and those of experiments are explained.

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On a steady, laminar, premixed hydrogen—bromine flame

Frazier

Wendt

1969

Chemical Engineering Science

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A theoretical analysis of chemical and physical processes in an ozone flame

Cited by 9 publications

References 17 publications

The Detailed Modeling of Premixed, Laminar Steady-State Flames to Obtain Validated Reaction Networks. I. Ozone

The Detailed Modeling of Premixed, Laminar Steady-State Flames to Obtain Validated Reaction Networks. I. Ozone

Calculation of the Structure of Laminar Flat Flames I: Flame Velocity of Freely Propagating Ozone Decomposition Flames

On a steady, laminar, premixed hydrogen—bromine flame

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