Stochastic and deterministic models for nucleation and growth in non-isothermal and/or non-isobaric powder transformations

Abstract : The calculation of fractional conversion can be very difficult in certain cases of nucleation and growth transformations (Mampel assumptions): it has only been developed for a few shapes of grains (spheres, cylinders) and only in isobaric and isothermal conditions. Here, a stochastic model which is intrinsically independent on geometry and which stands for non-isobaric and/or non-isothermal reactions is presented. The numerical evaluation of this model can be carried out in two different ways. First a slow Monte Carlo approach which is valid for all kinds of shapes and external conditions is presented, then, a faster, more classical approach is given which allows changing external conditions but only for well-known shapes.
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Journal articles
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https://hal-emse.ccsd.cnrs.fr/emse-00609069
Contributor : Andrée-Aimée Toucas <>
Submitted on : Monday, July 18, 2011 - 9:28:11 AM
Last modification on : Tuesday, October 23, 2018 - 2:36:08 PM

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Céline Helbert, Eric Touboul, Stéphane Perrin, Laurent Carraro, Michèle Pijolat. Stochastic and deterministic models for nucleation and growth in non-isothermal and/or non-isobaric powder transformations. Chemical Engineering Science, Elsevier, 2004, 59 (7), pp.1393-1401. ⟨10.1016/j.ces.2003.12.004⟩. ⟨emse-00609069⟩

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