| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a geothermal utilization system capable of acquiring sufficient geothermal heat at low cost. <P>SOLUTION: This geothermal utilization system is composed of a geothermal acquiring portion composed of surface soil, a heat barrier buried under the surface soil, and having heat conductivity of 0.10 W/m*K or less and a thickness of 20-500 mm, and a bore hole formed under the heat barrier, a heat exchange pipe passing through the bore hole of the geothermal acquiring portion, and circulating the water or an antifreeze liquid inside over the outside of the geothermal acquiring portion, and a pump unit portion connected to the heat exchange pipe and circulating the water or the antifreeze liquid into the heat exchange pipe. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
