| 摘要 |
<p>Water, air, other fluid flows downwardly through a vertical conduit which extends from the surface of an underground mine to a container located in an opening at or near the bottom of the shaft. The fluid in the container remains isolated from the walls of the opening to prevent contamination by minerals in the walls. The fluid remains in the container while its temperature rises by geothermal action. The heated fluid is then pumped through a conduit to a station at which the ambient temperature is lower than that of the fluid. Thermal energy is extracted from the heated fluid at the station.</p> |
