Geothermal energy. Tapping the earth's heat
Description
This Science Screen Report looks at a clean and renewable energy source that is steadily gaining scientific acceptance: hot dry rocks, otherwise known as enhanced geothermal systems. The program shows how masses of heated granite approximately 3 miles underground can be accessed with advanced drilling and computer imaging techniques, and how water forced through fissures in the granite can generate steam to produce electricity. A solid foundation for studying emerging alternatives to fossil fuels.
Runtime
15 min
Subjects
- Heat-engines (13)
- Power resources (209)
- Thermodynamics (43)
- Natural resources (402)
- Geology, Structural (32)
- Heat (34)
- Energy development (76)
- Quantum theory (92)
- Energy consumption (72)
Geography
Genre
Date of Publication
[2006], c2000
Database
Films on Demand
Direct Link
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