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Solar concentrator : ウィキペディア英語版
Concentrated solar power

Concentrated solar power (also called concentrating solar power, concentrated solar thermal, and CSP) systems generate solar power by using mirrors or lenses to concentrate a large area of sunlight, or solar thermal energy, onto a small area. Electricity is generated when the concentrated light is converted to heat, which drives a heat engine (usually a steam turbine) connected to an electrical power generator or powers a thermochemical reaction (experimental as of 2013).〔(【引用サイトリンク】url=http://energy.sandia.gov/wp/wp-content/gallery/uploads/S2P_SAND2009-5796P.pdf )〕〔(【引用サイトリンク】url=https://web.archive.org/liveweb/http://www1.eere.energy.gov/solar/sunshot/csp_sunshotrnd_pnnl.html )
CSP is being widely commercialized and the CSP market has seen about 740 megawatt (MW) of generating capacity added between 2007 and the end of 2010. More than half of this (about 478 MW) was installed during 2010, bringing the global total to 1095 MW. Spain added 400 MW in 2010, taking the global lead with a total of 632 MW, while the US ended the year with 509 MW after adding 78 MW, including two fossil–CSP hybrid plants. The Middle East is also ramping up their plans to install CSP based projects and as a part of that Plan, Shams-I the largest CSP Project in the world has been installed in Abu Dhabi, by Masdar.〔(Largest CSP Project in the World Inaugurated in Abu Dhabi – Renew India Campaign – solar photovoltaic, Indian Solar News, Indian Wind News, Indian Wind Market ). Renewindians.com (18 March 2013). Retrieved on 22 April 2013.〕
There is considerable academic and commercial interest internationally in a new form of CSP, called STEM, for off-grid applications to produce 24 hour industrial scale power for mining sites and remote communities in Italy, other parts of Europe, Australia, Asia, North Africa and Latin America. STEM uses fluidized silica sand as a thermal storage and heat transfer medium for CSP systems. It has been developed by Salerno-based Magaldi Industries. The first commercial application of STEM will take place in Sicily from 2015.〔CSP Today, April 11, 2014 "Italian project shows strong potential for sand based CSP"〕
CSP growth is expected to continue at a fast pace. As of January 2014, Spain had a total capacity of 2,300 MW making this country the world leader in CSP. Interest is also notable in North Africa and the Middle East, as well as India and China. The global market has been dominated by parabolic-trough plants, which account for 90% of CSP plants.〔
CSP is not to be confused with concentrator photovoltaics (CPV). In CPV, the concentrated sunlight is converted directly to electricity via the photovoltaic effect.
== History ==

A legend has it that Archimedes used a "burning glass" to concentrate sunlight on the invading Roman fleet and repel them from Syracuse. In 1973 a Greek scientist, Dr. Ioannis Sakkas, curious about whether Archimedes could really have destroyed the Roman fleet in 212 BC, lined up nearly 60 Greek sailors, each holding an oblong mirror tipped to catch the sun's rays and direct them at a tar-covered plywood silhouette 160 feet away. The ship caught fire after a few minutes; however, historians continue to doubt the Archimedes story.
In 1866, Auguste Mouchout used a parabolic trough to produce steam for the first solar steam engine. The first patent for a solar collector was obtained by the Italian Alessandro Battaglia in Genoa, Italy, in 1886. Over the following years, inventors such as John Ericsson and Frank Shuman developed concentrating solar-powered devices for irrigation, refrigeration, and locomotion. In 1913 Shuman finished a 55 HP parabolic solar thermal energy station in Maadi, Egypt for irrigation.〔Ken Butti, John Perlin (1980) ''A Golden Thread: 2500 Years of Solar Architecture and Technology'', Cheshire Books, pp. 66–100, ISBN 0442240058.〕〔CM Meyer. (From troughs to triumph: SEGS and gas ). Eepublishers.co.za. Retrieved on 22 April 2013.〕〔Cutler J. Cleveland (23 August 2008). (Shuman, Frank ). Encyclopedia of Earth.〕〔Paul Collins (Spring 2002) (The Beautiful Possibility ). Cabinet Magazine, Issue 6.〕 The first solar-power system using a mirror dish was built by Dr. R.H. Goddard, who was already well known for his research on liquid-fueled rockets and wrote an article in 1929 in which he asserted that all the previous obstacles had been addressed.〔("A New Invention To Harness The Sun" ) ''Popular Science'', November 1929〕
Professor Giovanni Francia (1911–1980) designed and built the first concentrated-solar plant, which entered into operation in Sant'Ilario, near Genoa, Italy in 1968. This plant had the architecture of today's concentrated-solar plants with a solar receiver in the center of a field of solar collectors. The plant was able to produce 1 MW with superheated steam at 100 bar and 500 °C.〔Ken Butti, John Perlin (1980) ''A Golden Thread: 2500 Years of Solar Architecture and Technology'', Cheshire Books, p. 68, ISBN 0442240058.〕 The 10 MW Solar One power tower was developed in Southern California in 1981, but the parabolic-trough technology of the nearby Solar Energy Generating Systems (SEGS), begun in 1984, was more workable. The 354 MW SEGS is still the largest solar power plant in the world, and will remain so until the 390 MW Ivanpah power tower project reaches full power.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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