| 摘要 |
PROBLEM TO BE SOLVED: To provide a device of a simple structure for utilizing a geothermal heat without using power and a special working fluid.SOLUTION: A tube which is buried in the ground from a geothermal heat utilization zone has two rooms that are formed by laterally dividing the inside with a central partition and communicate with each other at the bottom in which both sides of the partition, a roughly bottom half of the inside of the room where air goes down, and a roughly top half of the inside of the room where air goes up are painted with a paint excellent in thermal insulation. The tube further has an air inlet and air outlet each connecting with one of the two rooms in the geothermal heat utilization zone. |
