Coupled Transfer Of Heat And Mass In The Building Wall And Numerical Simulation

In this paper, we aim at establish heat and mass coupled transfer model in the building wall,, The emphasis of this study lies in creating a coupled and non-linear diferential equation system for the heat air and moisture transfer in the wall, Which can be described by means of continuum mechanics and irreversible thermodynamics , The most dominant factor is moisture conten 9LA gas pressure PC and temperature T , For the description of heatair and moisture transport , the general mass balance equation can be expressed by the temporal change of moisture conten 9 L, gas pressure PC and temperature T That means, in order to create a closed solvable equation system, the other additional dependencies have to be found, which the other variable depending on the variables of the solution: moisture conten 6 L gas pressure PC and temperature ToThe model is verified by the numerical simulation software which has been developed about building wall., the numerical simulation accords with detective values In summing up it may be stated that we must keep the building wall dryness in order to produce a good heat performance , Therefore, a air insulation is built in the high temperature layer and a air layer is built to eliminate moisture and exsuction damp in the low temperature layer,...