Static and dynamic modeling of cardboard drying - Part 2: Simulations and experimental results
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A general, dynamic model describing the drying mechanisms of paper has been developed. The model includes shrinkage and predicts temperature, moisture, and pressure profiles. It has been evaluated against steady-state as well as dynamic measurements oil a multicylinder paper dryer. The results revealed critical sections where low web strength and maximum gas pressure Occur. Measurements of the outer cylinder temperature provide reliable information on the accuracy of the predicted moisture profile since they show the position where the paper surface is dry.