Modelling of sand drying process in a sheet/hallow glass plant

Abstract

The sand drying process in a sheet/hallow glass plant has been modelled under steady state and unsteady state conditions. A model equation was developed for a differential length of the cylindrical drum dryer based on reasonable theoretical assumptions and solved under steady state and unsteady state conditions subject to the applicable boundary conditions. The model predicted the actual length of the drum dryer to an accuracy of 98.7% (1.3% deviation) and the diameter of the drum dryer to an accuracy of 98.3% (1.7% deviation). This model can be used for design, simulation and control of drum dryers for sand drying in a sheet/hallow glass plant.