Based on classify analysis and conclusive comments about various kinds of drying model

a rigorously formulated and quite comprehensive theoretical model has been established to describe heat and mass transfer during constant rate and falling rate periods in convective drying of porous media. The concept of iterative correction is introduced and the corresponding numerical method is developed for the moving boundary problem in numerical simulation of drying process. The calculation results for drying of bricks show that the present model is more precise than other models.