지열 발전

Environment - Science, Issues, Solutions by Brendan Burrell, Manuel Molles (2016) W. H.Freeman - 307page

 

 

 

Essentials of Geology by Stephen Marshak (4th) (2012) W . W . NORTON & COMPANY - 370page

 

 

 

 

 

Steam rising from the Nesjavellir Geothermal Power Station in Iceland. (From : wikipedia)

 

 

 

Geothermal power station in the Philippines (From : Wikipedia)

 

 

 

Krafla Geothermal Station in northeast Iceland (From : Wikipedia)

 

 

 

 

 

Enhanced geothermal system (From : Wikipedia)

1:Reservoir
2:Pump house
3:Heat exchanger
4:Turbine hall
5:Production well
6:Injection well
7:Hot water to district heating
8:Porous sediments
9:Observation well
10:Crystalline bedrock


세계 최대의 지열 발전소는 미국에 있습니다. Santa Rossa

 

 

 

 

 

Science - 2022.07.15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Geysers near the city of Santa Rosa in northern California
is the world's largest electricity-generating geothermal development.
Most of the wells are about 3,000 meters deep and produce nearly pure steam.
Pipes carry steam to turbine generators and associated condensers.
Vapor plumes from condensers are visible here.
Generators range from about 10 to 100 megawatt ratings;
many are about 50 megawatts. Several steam wells feed into a single generator.
After geothermal development, the land is available for other purposes, such as grazing.
(From : Geology.com)

 

 

Sierra Nevada를 기준으로 볼때 Battle Mountain area는 지하로 내려갈 수록 온도가 훨씬 더 올라갑니다. 
출처 : Geology.com

 

 

 

그림을 잘보면
여름엔 뜨거운 물은 지하로, 지하를 통해 다시 집으로 올라오는 물은 시원해지고
겨울엔 차가운 물을 지하로, 지하를 통해 다시 집으로 올라오는 물은 따뜻해지고,

이런 방법도 있습니다. (From : Geology.com)

Installed geothermal electric capacity

Country	Capacity (MW) 2007	Capacity (MW) 2010	Percentage of national production
USA	2687	3086	0.3%
Philippines	1969.7	1904	27%
Indonesia	992	1197	3.7%
Mexico	953	958	3%
Italy	810.5	843
New Zealand	471.6	628	10%
Iceland	421.2	575	30%
Japan	535.2	536	0.1%
El Salvador	204.2	204	14%
Kenya	128.8	167	11.2%
Costa Rica	162.5	166	14%
Nicaragua	87.4	88	10%
Russia	79	82
Turkey	38	82
Papua-New Guinea	56	56
Guatemala	53	52
Portugal	23	29
China	27.8	24
France	14.7	16
Ethiopia	7.3	7.3
Germany	8.4	6.6
Austria	1.1	1.4
Australia	0.2	1.1
Thailand	0.3	0.3
TOTAL	9,731.9	10,709.7

(From : wikipedia)