The gasification of carbon by carbon dioxide at high temperatures and pressures

Golovina, E. S.

doi:10.1016/0008-6223(80)90061-5

Cited by 34 publications

(18 citation statements)

References 2 publications

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“…The value of h increased rapidly below 1400°C toward lower temperatures, but approached a steady value at higher temperatures. These data agreed with the data published by Golovina (1980) using a different graphite. However, the large scattering in her data (ca.…”

Section: Penetration Depths and Overall Ratessupporting

confidence: 92%

“…The point at which the surface area approaches the bulk value is taken as the bottom of penetration depth. Using this technique, Golovina et al (1973Golovina et al ( , 1974Golovina et al ( , 1980 have done extensive studies on the high-temperature kinetics of gas-carbon reactions. The penetration depth of COz in a graphite has been measured by them at temperatures ranging from 1,500 to 3,400 K and pressures ranging from 1 to 40 atm.…”

Section: New Technique For Measuring Penetration Depthmentioning

confidence: 99%

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Kinetics of high‐temperature carbon gasification reaction

Desai

Yang

1982

AIChE Journal

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A simple technique is developed and is used to measure simultaneously the overall rate and the depth of the reaction zone in the porous solid. It is shown that by using some simple models, one may calculate the intrinsic rate constant and the pore diffusivity from the overall rate and the penetration depth. Models which allow for a varying pore diffusivity according to a linear porosity profile are presented, and have been shown more satisfactory than the constant diffusivity models of Thiele and of Zeldovich when applied to the high temperature carbon‐carbon dioxide reaction.

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Section: Penetration Depths and Overall Ratessupporting

confidence: 92%

Section: New Technique For Measuring Penetration Depthmentioning

confidence: 99%

Kinetics of high‐temperature carbon gasification reaction

Desai

Yang

1982

AIChE Journal

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“…The reactions of C s with H 2 O and CO 2 have been extensively investigated [11,19,[23][24][25]. The kinetics data compiled by Libby and Blake [25] considered the specific rates of both reactions to be equal, with a preexponential factor of 2470 kg=m 2 atm s and an activation energy of 41:9 kcal=mol.…”

Section: A Gas-phase Governing Equationsmentioning

confidence: 99%

Chemical Erosion of Carbon-Carbon/Graphite Nozzles in Solid-Propellant Rocket Motors

Thakre

Yang

2008

Journal of Propulsion and Power

120

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“…However, the empirical determination of the Arrhenius coefficients does not always provide sufficiently reliable results. For instance, the pre-exponential factor of the oxidation reactions of C (s) suggested by Golovina 23 are about an order of magnitude less than that of Libby and Blake.…”

Section: Iid2 Ablated Wallsmentioning

confidence: 82%

Direct Numerical Simulation Of Turbulent Multispecies Channel Flow With Wall Ablation

Cabrit

Artal

Nicoud

2007

39th AIAA Thermophysics Conference

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The design of solid rocket motors requires the prediction of changes induced by the ablation process occurring at the nozzle throat. The present study aims at understanding the effects of ablation on the turbulent boundary layer performing direct numerical simulations in a channel flow configuration. An ablation boundary condition for arbitrary chemical composition and pyrolysis scheme is developed and presented in this paper. Then, two DNS of a seven species reacting flow are performed: a) with inert walls; b) with ablated walls. Generated data are compared and analyzed looking at first order statistics. It is shown that the classical law of the wall for velocity and temperature are not appropriate to represent the numerical result. The chemical equilibrium assumption is shown to be valid in the inert case and a wall function consistent with this assumption is in fair agreement with the results.

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The gasification of carbon by carbon dioxide at high temperatures and pressures

Cited by 34 publications

References 2 publications

Kinetics of high‐temperature carbon gasification reaction

Kinetics of high‐temperature carbon gasification reaction

Chemical Erosion of Carbon-Carbon/Graphite Nozzles in Solid-Propellant Rocket Motors

Direct Numerical Simulation Of Turbulent Multispecies Channel Flow With Wall Ablation

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