| 摘要 |
PROBLEM TO BE SOLVED: To provide a geothermal power generation-hydraulic power generation system which makes a hydraulic power generation system and a geothermal power generation system serve a double purpose and improves the production efficiency of electric power.SOLUTION: Water 31 is supplied from an upper pond 2 adjacent to a geothermal power generation plant 10 to a waterwheel 14 under ground by means of a hydraulic pipe 12 and a waterwheel generator 13 generates power by using rotation of the waterwheel 14. The water 31 is supplied from the waterwheel 14 to an underground hollow 11 excavated between the waterwheel 14 and an underground depth part in which a magma reservoir 6 is formed by means of an outlet conduit 15 and the water 31 is supplied to the magma reservoir 6 from the underground hollow 11 through a water lowering pipe line 16. Steam 32 generated when water 31 is vaporized by the magma reservoir 6 is supplied to the geothermal power generation plant 10 by means of a steam raising pipe 8. A vapor turbine 9 of the geothermal power generation plant 10 is driven by using vapor included in steam as heat source and a geothermal power generator 23 in the geothermal power generation plant 10 generates power by using rotation of the vapor turbine 9. By uniting hydraulic power generation and geothermal power generation, the production efficiency of electric power can be improved. |
