Research on the Thermal Effect Estimation Method of a Heat/Cool Trench through Subterranean Heat Transfer Numerical Analysis

摘要

Synopsis： In this research, a method for estimating the heat addition in winter and the heat extraction in summer of a heat/cool trench is devised based on subterranean heat transfer numerical analysis. First, the numerical-analysis technique of subterranean heat transfer is applied to the calculation of the cross-sectional temperature distribution of a building and the circumference foundation, and the concrete skin temperature in a trench is found. Next, from the heat transfer between the trench surface and passing air, the air difference in temperature between the entrance-exits of a trench is predicted, and the heat addition quantity and the quantity of heat extracted during the period is calculated.