کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
155509 456898 2012 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A multiscale model for the simulation of granulation in rotor-based equipment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A multiscale model for the simulation of granulation in rotor-based equipment
چکیده انگلیسی

Granulation processes can be modeled with the help of population balance models. Numerous studies have considered mechanisms such as coalescence or breakage to predict the evolution of granulation with respect to time. Although these mechanisms play a fundamental role in representing the real behavior of such systems, it has become apparent that the flow pattern of the particles also needs to be modeled. This work investigates granulation with a rotor processor by means of a multiscale model involving a population balance model at the process scale, a compartmental approach that takes into account specific flow behaviors in different zones of the equipment, and a discrete element based model at the particle scale. The population balance model is based on an event-driven Monte-Carlo algorithm and a time-continuous Markov chain to reproduce the particle motion in each compartment. The markov chain properties are obtained from a discrete element simulation of the particle flow dynamics in the whole domain. The results show that the proposed approach improves the accuracy of the population balance model when the particle flow is considered.

Highlight
► A multiscale population balance model (PBM) is proposed to simulate a granulation process.
► A compartmental approach is used to model particle flow in different zones of the equipment.
► The PBM is based on a Markov chain to simulate particle motion in each compartment.
► The Markov chain properties are obtained by means of discrete element simulation.
► The multiscale model improves the accuracy of the PBM by taking into account particle motion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 81, 22 October 2012, Pages 106–117
نویسندگان
, , ,