Geothermal power technologies. Hot dry rock geothermal energy (HDR) is a type of geothermal power production that utilises the very high temperatures that can be found in rocks just a few kilometres below ground. This is done by pumping high pressure water down a borehole into the heat zone. The water travels through fractures in the rock, capturing the heat of the rock until it is forced out of a second borehole as very hot water, which is converted into electricity using either a steam turbine or a binary power plant system. All of the water, now cooled off, is injected back into the ground to heat up again. Image File history File links Download high resolution version (1769x1252, 45 KB)Geothermal power technologies. ...
Image File history File links Download high resolution version (1769x1252, 45 KB)Geothermal power technologies. ...
Geothermal power plant in the Philippines Geothermal power is the use of geothermal heat to generate electricity. ...
Water borehole in northern Uganda A borehole is a deep and narrow shaft in the ground used for abstraction of fluid or gas reserves below the earths surface. ...
A rotor of a modern steam turbine, used in a power plant A steam turbine is a mechanical device that extracts thermal energy from pressurized steam, and converts it into useful mechanical work. ...
Hot dry rock is the end point for a range of technology for mining heat from the earth that consists of:
- natural geothermal systems, where there are already cracks or pore spaces filled with water hot enough to generate power;
- systems where there are some cracks and connected pore spaces;
- rocks where there are little to no cracks or connected pore spaces.
Enhanced geothermal systems
When natural cracks and pores will not allow for economic flow rates, the permeability can be "enhanced" or stimulated by pumping cold water or water with acids and chemicals through the ground. These artificially created geothermal systems are called Enhanced Geothermal Systems, or EGS. There are HDR and EGS systems currently being developed and tested in France, Australia, Japan, the U.S. and Switzerland. The biggest HDR project is currently installed in Australia. Permeability has several meanings: In electromagnetism, permeability is the degree of magnetisation of a material in response to a magnetic field. ...
Motto: (Out Of Many, One) (traditional) In God We Trust (1956 to date) Anthem: The Star-Spangled Banner Capital Washington D.C. Largest city New York City None at federal level (English de facto) Government Federal constitutional republic - President George Walker Bush (R) - Vice President Dick Cheney (R) Independence from...
A 2006 report by MIT that took into account the use of Enhanced Geothermal Systems concluded that it would be affordable to generate 100 GWe (gigawatts of electricity) or more by 2050, just in the United States, for a maximum investment of 1 billion US dollars in research and development over 15 years.[1]. For the Manfred Mann album, see 2006 (album). ...
Mapúa Institute of Technology (MIT, MapúaTech or simply Mapúa) is a private, non-sectarian, Filipino tertiary institute located in Intramuros, Manila. ...
2050 (MML) will be a common year starting on Saturday of the Gregorian calendar. ...
The MIT report calculated the world's total EGS resources to be over 13,000 ZJ, of which over 200 ZJ would be extractable, with the potential to increase this to over 2,000 ZJ with technology improvements - sufficient to provide all the world's energy needs for several millennia.[1] A millennium (pl. ...
Earthquakes The HDR project in Basel, Switzerland was suspended after causing an earthquake. On 8 December 2006, only 8 days after water injection started, a quake occurred measuring 3.4 on the Richter Scale with the epicentre at the bottom of the HDR borehole. The tremor prompted over 1000 calls to emergency services by local residents[1] [2], and caused minor structural damage to several buildings. Water injection was immediately stopped, but minor quakes continued. Further significant tremors were recorded on 6 January (measuring 3.1)[3] and 16 January 2007 (3.2). Basel is in a known earthquake zone, see Basel earthquake. Basel (British English traditionally: Basle and more recently Basel , German: , French: , Italian: ) is Switzerlands third most populous city (166,563 inhabitants (2004); 690,000 inhabitants in the metropolitan area stretching across the immediate cantonal and national boundaries made Basel Switzerlands second-largest urban area as of 2003). ...
December 8 is the 342nd day (343rd in leap years) of the year in the Gregorian calendar. ...
The Richter magnitude test scale (or more correctly local magnitude ML scale) assigns a single number to quantify the size of an earthquake. ...
January 6 is the 6th day of the year in the Gregorian calendar, with 359 days (360 in leap years) remaining. ...
January 16 is the 16th day of the year in the Gregorian calendar. ...
Tremblement de terre de Bâle de 1356 1356 Basel earthquake ---- (more info) Stage 3 : Proofreaders Needed (How-to) French article is short but well-referenced. ...
See also Geothermal power plant in the Philippines Geothermal power is the use of geothermal heat to generate electricity. ...
Rosemanowes Quarry, near Penryn, Cornwall, United Kingdom, was the site of an early experiment in extracting geothermal energy from the earth using hot dry rock technology. ...
External links - Australian resources
- US Department of Energy (DoE) resources
- Swiss HDR program
- Current Project in Basel
- Current Project in Basel (English)
- Geodynamics (HDR development company)
- [4]
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