Properly Designed Pneumatic Dryer

Pneumatic dryers, also known as flash dryers, are commonly used to dry granular material in many industries. In this kind of dryer, wet solid is transported by a hot airstream, reducing its moisture content as it moves. The solid remains inside the dryer for only a few seconds and this allows heat-sensitive materials to be dried at relatively high temperatures. Pneumatic dryers are simple to construct, but they must be properly dimensioned for the dryer to operate efficiently. We used Discrete Element Method (DEM) coupled with Computational Fluid Dynamics (CFD) to develop a highly efficient pneumatic dryer.