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eLibrary Resources
- Tapping the Earth's Natural Energy
Geothermal power plants take advantage of the earth's hot spots.
In and below the earth's crust, radioactive material decays, heating up everything around it. Temperatures can reach 1,200 degrees C producing steam.
The steam spins a turbine, which turns the shaft of an electric generator.
For hot spots that do not have underground water nearby, engineers can send water through pipes to the hot spot and convert the water to steam.
Geothermal energy is most likely to be harnessed in an area close to volcanic activity.
Copyright 1995, Enteractive, Inc.
Graphic explains how geothermal energy can be tapped through a series of below-ground pipes.
Copyright 2008 Knight-Ridder/Tribune News Service
- Study Finds Conditions Ripe For Major Quake Along San Andreas Fault
CALIPATRIA, CA - JULY 03: Steam rises as a geothermal power plant taps into energy produced by underground pressures near the southern end of the San Andreas Fault at the Sonny Bono Salton Sea National Wildlife Refuge on July 3, 2006 near Calipatria, California. The plant is located over the Salton Sea Geothermal Field where temperatures measured in wells drilled for geothermal brines reach 360 degrees Celsius at depths of 1,500 to 2,500 meters. Scientists have warned that the southern end of the 800-mile-long San Andreas fault north and east of Los Angeles has built up immense pressure and could produce a massive earthquake at any time. Such a quake could produce a sudden lateral movement of 23 to 32 feet which would be would be among the largest ever recorded.
Photo by David McNew, Copyright 2006 Getty Images, Inc.
- Map of major geothermal features and sampling localities
of study sites
Fig. 1. Map of major geothermal features and sampling localities of the study sites. (A, B) Taupo Volcanic Zone (TVZ), central North Island, New Zealand. (C) Northern Waiotapu. (D) Te Kopia. (E) Orakei Korako and Umukuri. D, downthrown side; U, upthrown side.
Lynne, Bridget Y; Campbell, Kathleen A. Canadian Journal
of Earth Sciences. Copyright National Research Council of
Canada Nov 2003
Resources taken from Proquest's eLibrary
Charts and Tables
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Thermal springs of Tapoban geothermal area
Geothermal energy resource utilization: Perspectives of the Uttarakhand Himalaya
Bhardwaj, K.N.; Tiwari, S.C., Current Science, Vol. 95, No. 7, pp. 846-850. Oct 2008.
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Characteristics of geothermal provinces of India
Geothermal energy resource utilization: Perspectives of the Uttarakhand Himalaya
Bhardwaj, K.N.; Tiwari, S.C., Current Science, Vol. 95, No. 7, pp. 846-850. Oct 2008.
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Conventional Drilling Rig Used for the Deep Mining Project in Basel, Switzerland
Increasing Geothermal Energy Demand: The Need for Urbanization of the Drilling Industry
Teodoriu, Catalin; Falcone, Gioia, Bulletin of Science, Technology & Society, Vol. 28, No. 3, pp. 227-235. Jun 2008.
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Sketch of the set-up needed to supply hot water from a geothermal . . .
Geothermal Energy: Venture Capital Risk Considerations
Lerche, Ian, Energy Exploration & Exploitation, Vol. 25, No. 2, pp. 95-106. 2007.
Tables taken from ProQuest's Illustrata
Scholars
- Jefferson W. Tester
H. P. Meissner Professor, Department of Chemical Engineering, Massachusetts Institute of Technology
http://web.mit.edu/cheme/people/profile.html?id=29
From Publication Abstracts: pressures a phase change
to steam is avoided which avoids large enthalpic energy penalties.
Biological . . . feasibility of geothermal becoming a major
supplier of primary energy for US base-load generation . . .
of the panel which appears in complete form in a 2006 MIT report,
'The future of geothermalenergy' parts 1
- Bilal A. Akash
Professor, Department of Mechanical Engineering, Hashemite University
http://www.hu.edu.jo/fac/dept/CV_E.aspx?Pid=10280
From Publication Titles: Modeling of a geothermal standing
column well . . .Energy saving and CO2 mitigation through restructuring
Jordan's transportation sector: The diesel passenger cars scenario
. . .Prospects of GeothermalEnergy Utilization in Jordan
- Thomas A.V. Cassel
Practice Professor, Mechanical Engineering and Applied Mechanics, University of Pennsylvania
http://www.me.upenn.edu/faculty/cassel.html
From Publication Abstracts: for accelerating geothermal
development . . ..Develops an analytic decision model for evaluating
geothermal investment behavior of both resource developers and
power producers. Provides estimates of the potential role of
geothermalenergy . . . of geothermalenergy are documented. The
forecasting instrument may be divided into two sequential submodels.
The first predicts the timing and quality of geothermal resource
discoveries from an underlying resource base. The second submodel
forecasts the rate and extent of utilization of geothermal
- Burton M. Kennedy
Geothermal Energy, U.S. Department of Energy
bmkennedy@lbl.gov
From Publication Abstracts: the Dixie Valley geothermal
field range from 0.70 to 0.76Ra, are among the highest values
in the valley . . . Stillwater Range Front Fault, from which
the geothermal fluids are produced. Using a one-dimensional
flow . . ., identifying zones with high resource potential,
particularly for geothermalenergy development
Scholars taken from ProQuest's Community
of Scholars
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