Seasonal Thermal Storage in Aquifer for Utilization

抄録

Temperate zone such as Japan suffers from not only hot weather in summer but also cold weather in winter. This study explores the possibility of such seasonal thermal storage in terribly different weathers that undergroundwater stored in each available season can be used for heat sink or source. In this paper we made clear a 40% recovery in winter of the temperature of warm water stored during summer, both by field experiment and by numerical analysis. Finally we propose a suitable well distance at while thermal pollution caused by injection does not occur and effective utilization of seasonal thermal storage in aquifer can be expected.