Abstract
This paper deals with an approximate analytical solution of an integro‐differential model describing nucleation and growth of particles. The model includes a thermal‐mass exchange with the environment and the removal of product crystals from a metastable medium. The method developed for solving model equations (kinetic equation for the particle‐size distribution function and balance equations for temperature/impurity concentration) is based on the saddle point technique for calculating the Laplace‐type integral. We show that the metastability degree decreases with time at a fixed mass (heat) flux. The crystal‐size distribution function is an irregular bell‐shaped curve increasing with the intensification of heat and mass exchange.
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