Temperature field analysis of underground water source heat pump based on surfacelet finite element method

In order to avoid the occurrence of heat transfixion, the temperature field distribution of underground water source heat pump should be found out, and therefore, the surface finite element method is used to analyze temperature of underground water source heat pump. Firstly, the related researches are summarized. Secondly, the basic feature of surfacelet transform is studied. Thirdly, the surfacelet finite element formulation is proposed through combing the surfacelet transform and traditional finite element method for analyzing the temperature field of underground water source heat pump. Then, temperature field model of underground water source heat pump is established. Finally, the temperature field analysis of underground water source heat pump is analyzed based on traditional finite element method, B-spline wavelet finite element method and surfacelet finite element method, respectively, and results show that the surfacelet finite element method has highest computing accuracy and efficiency; in addition, the measurements that avoid the heat transfixion of system are put forward.