Drying characteristics and numerical simulation of tissue paper

Abstract This study aims to investigate the drying process of tissue paper in depth and to analyze it comprehensively by combining experimental and simulation methods. In the experimental part, a variety of drying conditions were designed, including different air temperatures, air velocities, and bottom heating temperatures, to accurately measure the change in moisture ratio of tissue paper. Meanwhile, a mathematical model for predicting the tissue drying moisture ratio was constructed based on the experimental data, and the tissue drying process was simulated. The simulation presented the process of moisture transfer within the tissue paper visually and quantitatively. The experimental and simulation results validate and complement each other, revealing the synergistic influence mechanism of drying parameters on the drying effect of tissue paper. The results showed that the effects of air temperature, bottom heating temperature, and air velocity on the drying rate of tissue paper were in the following order: bottom heating temperature > air temperature > air velocity, and among eight drying kinetic models, the Aghbashlo model was the most suitable for describing the drying characteristics of tissue paper in thin layers, and the accuracy of the prediction model was verified by simulation.