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geothermal | - Of or relating to the earth`s interior heat.
- An adjective relating to heat within earth.
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geothermal discovery | An underground geological structure or region in which a hydrothermal reservoir or geothermal reservoir has been proven, usually with an exploration well. |
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geothermal district heating (gdh) | A type of direct use in which a utility system supplies multiple users with hot water or steam from a central plant or well field through a distribution network. |
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geothermal energy | - Energy derived from the internal heat of the earth.
- The earth`s interior heat made available to humanity by extracting it from hot water or rocks. this is literally the “heat beneath our feet,” or heat that flows continuously from the earth’s interior to the surface. this heat has been radiating from the earth’s core for about 4.5 billion years.
- Thermal energy inside the earth. geothermal energy is currently extracted from a few metres to a few kilometers beneath the earth’s surface, to use as a practical source of energy (modified after uob, 2023).
- Accessible thermal energy stored in the earth’s interior, in both rock and trapped steam or liquid water (hydrothermal resources), which may be used to generate electric energy in a thermal power plant, or to supply heat to any process requiring it. the main sources of geothermal energy are the residual energy available from planet formation and the energy continuously generated from radionuclide decay.
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geothermal field | A localized volume of earth’s crust where a geothermal resource can be extracted from a reservoir by subsurface working fluids and then delivered to a place of use (modified after moeck, 2014). |
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geothermal gradient | - The rate of increase of temperature with depth in the earth, with an average value of approxi- mately 25°c per km.
- The rate of temperature increase in the earth as a function of depth. temperature increases an average of 1° fahrenheit for every 75 feet in descent.
- The rate of temperature change with increasing depth into earth.
- Rate at which the earth’s temperature increases with depth, indicating heat fl owing from the earth’s warm interior to its colder parts. global warming potential (gwp): gwp is an index, based upon radiative properties of well-mixed greenhouse gases, measuring the radiative forcing of a unit mass of a given well-mixed greenhouse gas in today’s atmosphere integrated over a chosen time horizon, relative glossary, acronyms, chemical symbols and prefi xes annex i to that of co. the gwp represents the combined effect of the differing lengths of time that these gases remain in the atmosphere and their relative effectiveness in absorbing outgoing infrared radiation. the kyoto protocol ranks greenhouse gases on the basis of gwps from single pulse emissions over subsequent -year time frames. see also climate change and co- equivalent emission.
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geothermal heat pumps | Mature technologies that use the constant temperature of the shallow earth (40–70°f) to provide heating and cooling solutions to buildings wherever the ground can be cost-effectively accessed to depths below seasonal temperature variations. |
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geothermal lead | A vaguely-defined underground geological feature that has the potential to contain a geothermal resource. |
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geothermal lease | A deed with which a landowner authorizes exploration for–and production of–geothermal fluids or heat on their license area, usually in consideration of a royalty (modified after law insider, 2023a). |
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geothermal play | The portion of a geothermal system that contains a heat reservoir, its subsurface working fluid (either native or introduced), and/or a cluster of geothermal fields, geothermal discoveries, geothermal prospects, and/or geothermal lead – that resemble each other geologically and share common risks (modified after doust, 2009) – all surrounded by low permeability rocks. |
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geothermal power | Power generated by using the heat energy of the earth. |
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geothermal power plant | An industrial facility built on earth’s surface to generate electrical power. |
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geothermal power station |
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geothermal prospect | An underground, geological structure or region with indications that it could contain a hydrothermal reservoir or geothermal reservoir, which could be economically exploited. |
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geothermal reservoir | Месторождение термальных вод |
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geothermal resource | The portion of a reservoir’s total geothermal energy that is technically recoverable from the earth. |
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geothermal stage |
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