Patent ID: 8661818
Filing Date: 2014-03-04
Classification: F03G

Abstract:
1. A hot dry rock generation system comprising: an underground hot dry rock having a bedrock part having natural cracks therein, to which high pressure water has been supplied so as to form additional cracks in the hot dry rock such that water can penetrate the hot dry rock; a recharge well that extends from a ground level to the underground hot dry rock having the cracks into which water serving as a heat carrier is charged through the recharge well; a production well that extends from the ground level to the underground hot dry rock having the cracks, from which the water heated by the hot dry rock and steam of the water stream out to the ground level through the production well; a power generation plant that converts thermal energy of the water and steam streaming out of the production well into electric energy; a collecting tank that stores the water discharged from the power generation plant; a sealing water pump that sucks the water collected in the collecting tank and makes the water stream into the recharge well, a first heat exchanger provided on a route to the collecting tank from the power generation plant; and a heat consumption plant that consumes thermal energy from the first heat exchanger, wherein the heat consumption plant cools the water and the steam guided to the collecting tank via the heat exchanger so that the temperature of the water discharged into the collecting tank is decreased to a level close to an ambient temperature; and an open loop recirculation wherein the water circulates from the recharge well via the hot dry rock, the production well, the power generation plant, the first heat exchanger, the collecting tank and the recharge well to the hot dry rock.