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Generation Capacity Estimation of Pilot Plant with Enhanced Geothermal System in Korea  

Song, Yoon-Ho (Geothermal Resources Department, Korea Institute of Geoscience and Mineral Resources (KIGAM))
Publication Information
Journal of the Korean Society of Mineral and Energy Resources Engineers / v.47, no.3, 2010 , pp. 245-253 More about this Journal
Abstract
We estimated the generation capacity and corresponding cost and period of pilot plant project with enhanced geothermal system in Korea as a preliminary feasibility study. Production and reinjection temperatures of geothermal fluid were assumed $155^{\circ}C$ and $60^{\circ}C$, respectively, based on reservoir temperature of $180^{\circ}C$ calculated from the geothermal gradient of $33^{\circ}C$/km in Pohang area. Thermal efficiency of the binary generation cycle was set to 0.11. Flow rates of 20 kg/sec and 40 kg/sec per well of a triplet system enabled us to estimate the generation capacity of 1.7 MW and 3.5 MW, respectively. Considering technology development trend, we expect the higher generation capacity of 3.5 MW to be achievable. Cost for the pilot plant project is estimated to be 100 billion KRW with help of European and US estimations and including the cost of site selection and monitoring system, while corresponding period to be 6.5-7 years.
Keywords
Enhanced Geothermal System (EGS); Geothermal; Generation capacity; Binary power generation;
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Times Cited By KSCI : 1  (Citation Analysis)
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