몽골의 심부 지열에너지 자원과 지열발전에 관한 연구

초록

Mongolia has three(3) geothermal zones and eight(8) hydrogeothermal systems/regions that are, fold-fault platform/uplift zone, concave-largest subsidence zone, and mixed intermediate-transitional zone. Average temperature, heat flow, and geothermal gradient of hot springs in Arhangai located to fold-fault platform/uplift zone are 55.8℃, 60∼110 mW/m2 and 35∼50 ℃/km respectively and those of Khentii situated in same zone are 80.5℃, 40∼50 mW/m2, and 35∼50 ℃/km separately. Temperature of hydrothermal water at depth of 3,000 m is expected to be about 173∼213℃ based on average geothermal gradient of 35∼50 ℃/km. Among eight systems, Arhangai and Khentii located in A type hydrothermal system, Khovsgol in B type, Mongol Altai plateau in C type, and Over Arhangai in D type are the most feasible areas to develop geothermal power generation by Enhanced Geothermal System (EGS). Potential electric power generation by EGS is estimated about 2,760 kW at Tsenher, 1,752 kW at Tsagaan Sum, 2,928 kW at Khujir, 2,190 kW at Baga Shargaljuut, and 7,125 kW at Shargaljuut.

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