| 摘要 |
A method for evaluating ground thermal conductivity is provided to enable a user to input an evaluation request form and a measurement condition through a dialog window, and evaluate/estimate the ground thermal conductivity precisely with a program by using normal state data after a predetermined time based on measured variables. A measurement interval for evaluating the ground thermal conductivity is set, and an initial ground entrance/exit temperature is measured(S103). An initial ground temperature is measured if the measured initial ground entrance temperature is identical with the measured initial ground exit temperature(S107). A dialog checkbox program is executed, and evaluation items and condition items are inputted(S111). The temperature/voltage of a target is measured and displayed(S113). Heat consumption power, a circulation flow rate, a heat transfer rate from a heater to circulation water, and the average ground entrance/exit temperature are evaluated, and the result is displayed(S115). A period, the average ground entrance/exit temperature, and an average heat transfer rate of a normal state are sorted and displayed in a graph if the period of the average ground entrance/exit temperature satisfies a predetermined condition(S121). |
