... 861 – 911 [5] Levenspiel, O., Modeling in chemical engineering, Chemical Engineering Science, 57, (2002), 4691 – 4696 Mass Transfer in Chemical Engineering Processes 98Particle Sand PVC ... exist, the computational domain has to be discretized into cells or elements with nodal points marking the boundaries of each cell and combining the physical domain into one computational entity. ... geometry as shown in Figure 3. This model discusses the drying of sludge material and linked to an earlier work presented by Jamaleddine and Mass Transfer in Chemical Engineering Processes 100...