Dynamic Model of Heat Transfer through Underground Building Envelope

Three-dimension dynamic differential heat conduction equation without inner heat source was used to describe heat transfer through underground building envelope. Then a two-dimension dynamic model was established by suitable simplification without considering heavy underground water. In this paper, in order to verify the model, MATLAB is chosen as the tool to simulate the heat transfer through envelope of Taiyuan underground hostel with the calculating program written by author. The simulation result shows that the dynamical model is feasible.