Sensitivity Analysis applied to Hygrothermal Simulation of a Brick Building in Hot and Humid Climate

Based on the Fourier law, Fick law and Darcy law, a coupled heat and moisture transfer model for porous media was established. Relative humidity and temperature were chosen as the driving potentials. The effects of sorption capacity, water vapor permeability, liquid water conductivity, specific heat, and thermal conductivity on the coupled heat and moisture transfer in porous media were investigated under hot-humid climate. The results show that liquid water permeability and thermal conductivity have greater effects on the coupled heat and moisture transfer, and the average errors are 2% and 2.2%. The effects of other parameters are negligible, and the average errors are less than 0.1%.