Analytical method for heat transfer characteristics of vertical ground heat exchangers in ground-source heat pump under dynamic load

Based on the infinite-length linear source model and the principle of load superposition, establishes a two-dimensional analytical model for heat transer characteristics under dynamic load to predict the whole year dynamic inlet and outlet temperature of a ground heat exchanger and the temperature distribution of the surronding soil. The predicted results are compared with those of a full scale three-dimensional CFD simulation developed perviously. The results show that the results of the two models are basically consistent.