Numerical simulation of soda ash drying process in pneumatic drying system with industrial scale

Authors

  • Edisa Papraćanin Department of Chemical Engineering, Faculty of Technology, University of Tuzla, Urfeta Vejzagića 8, 75000 Tuzla, Bosnia and Herzegovina
  • Nisad Avdić Sisecam soda Lukavac, Prva Ulica br.1, 75300 Lukavac, Bosnia and Herzegovina
  • Abdel Đozić Department of Environmental Engineering, Faculty of Technology, University of Tuzla, UrfetaVejzagića 8, 75000 Tuzla, Bosnia and Herzegovina
  • Ervin Karić Department of Chemical Engineering, Faculty of Technology, University of Tuzla, Urfeta Vejzagića 8, 75000 Tuzla, Bosnia and Herzegovina

DOI:

https://doi.org/10.7251/JEPM2102042P

Abstract

In this paper a mathematical model for the soda ash drying process in a pneumatic dryer was presented. The model presents a macroscopic aspect of the drying process, for a two-phase, gas-solid system. The model is based on mass and heat transfer between the gas phase and the particle, movement of air and particles through the system, and geometric characteristics of the drying system (fan, air heater, pneumatic dryer, and cyclone). The effects of the process parameters, such as airflow, inlet air temperature, and relative humidity, temperature at the inlet of the dryer, etc., have been studied by solving the model. Also, the model was tested for different values of the capacity of wet soda and different values of the operating parameters of the heating medium. The model was implemented in MATLAB and solved with a nonlinear equations solver. Data obtained by the model were compared with industrial pneumatic dryer data for drying wet soda ash particles with good agreement.

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Published

2022-11-30
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