2019 年 25 巻 59 号 p. 229-234
In order to evaluate the performance of the central air-conditioning house using geothermal heat, field survey in the model house equipped with the earth tube and thermal storage concrete mat foundation was carried out in Maebashi city for three years. In this paper, measurement results of indoor thermal environment, amount of heat exchange by the earth tube, condensation in the earth tube, and indoor temperature stabilization effect by the thermal storage concrete mat foundation were described.