Uso de programas gratuitos para a simulação dinâmica da secagem em leito fixo com reversão
Abstract
Mathematical models are widely used in the design, control, and optimization of
systems. With the growing popularization of the computer as an accessible tool and
technology advances, it is increasingly common to include computer simulation as a
fundamental step in the development of chemical processes. The high energy
demands in the drying process lead to stricter requirements regarding the efficiency
of the equipment used. In order to improve drying efficiency, the DEQ/UFSCar
Particulate Systems developed a thick fixed bed primarily intended to verify process
models. The cell allows changing the direction of the airflow, causing the decrease of
the temperature and moisture gradients inside the bed. Were then derived and
experimentally verified dynamic models with different degrees of complexity, and
recently, a two-phase model was implemented in Matlab that describes with a good
agreement the drying of alumina in the thick fixed bed. Because the alumina has
essentially free water (easier drying) and is structurally simple, it was the standard
grain used in drying simulations with airflow reversal. The present Final Undergraduate
Paper aims to simulate the drying of thick fixed bed alumina with airflow reversal using
the two phases model, converting the Matlab script into Scilab and Python. The
simulation results were compared to the conventional fixed bed operation to see if it
effectively reduced the temperature and moisture gradients achieved with the reversal
technique.
Collections
The following license files are associated with this item: