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| Titel |
Geothermal Resources of Korea |
| VerfasserIn |
Y. Lee, S. Park, J. Kim, H. C. Kim, M.-H. Koo |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250020873
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| Zusammenfassung |
| In Korea, geothermal energy has been used for hot spring and balneology for thousands of
years up until modern times, and for space cooling/heating recently. However, in general
geothermal resources are vastly underexploited in Korea. It is mainly due to the fact
that there is no quantitative information about geothermal resource potential of
Korea. Therefore, in this work, we made a first geothermal resource assessment in
Korea.
To estimate available geothermal energy and to construct temperature at depth maps in
Korea, various geothermal data have been used. Those include 1560 thermal property data
(conductivity, specific heat, and density), 353 heat flow data, 54 surface temperature data, and
180 heat production data.
In Korea, subsurface temperature ranges from 23.9˚ C to 47.9˚ C at a depth of 1 km,
from 34.2˚ C to 79.7˚ C at a depth of 2 km, from 44.2˚ C to 110.9˚ C at a depth of 3 km,
from 53.8˚ C to 141.5˚ C at a depth of 4 km, and from 63.1˚ C to 171.6˚ C at a depth of 5
km. The total available subsurface geothermal energy in Korea is 4.25×1021 J from surface
to a depth of 1 km, 1.67×1022 J to a depth of 2 km, 3.72×1022 J to a depth of 3 km,
6.52×1022 J to a depth of 4 km, and 1.01×1023 J to a depth of 5 km. In particular, the
southeastern part of Korea shows high temperatures at depths and so does high
geothermal energy. If only 2% of geothermal resource from surface to a depth of 5 km is
developed in Korea, energy from geothermal resources would be equivalent to about 200
times annual consumption of primary energy (~2.33×108 TOE) in Korea in 2006. |
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