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Parabolic trough at a plant near Harper Lake, California. A parabolic trough collector (PTC) is a type of solar thermal collector that is straight in one dimension and curved as a parabola in the other two, lined with a polished metal mirror.
The Solana Generating Station is a solar power plant near Gila Bend, Arizona, about 70 miles (110 km) southwest of Phoenix.It was completed in 2013. When commissioned, it was the largest parabolic trough plant in the world, and the first U.S. solar plant with molten salt thermal energy storage. [3]
As a thermal energy generating power station, CSP has more in common with thermal power stations such as coal, gas, or geothermal. A CSP plant can incorporate thermal energy storage, which stores energy either in the form of sensible heat or as latent heat (for example, using molten salt), which enables these plants to continue supplying electricity whenever it is needed, day or night. [11]
A change of position of the sun parallel to the receiver does not require adjustment of the mirrors. Parabolic trough power plants use a curved, mirrored trough which reflects the direct solar radiation onto a glass tube containing a fluid (also called a receiver, absorber or collector) running the length of the trough, positioned at the focal ...
The TSE 1 solar thermal power plant in Kanchanaburi, Thailand, was the first commercial parabolic trough plant based on direct steam generation. The plant utilized the Solarlite Trough SL4600, which incorporates composite materials and thin-glass mirrors to optimize solar radiation reflection.
Working principle View to the East from the parabola center One of the 63 heliostats. The principle used is the concentration of rays by reflecting mirrors (9,600 of them). The solar rays are picked up by a first set of steerable mirrors located on the slope, and then sent to a second series of mirrors (the concentrators), placed in a parabola and eventually converging on a circular target, 40 ...
Legendary accounts of the Siege of Syracuse (213–212 BC) tell of Archimedes' heat ray, a set of burnished brass mirrors or burning glasses supposedly used to ignite attacking ships, though modern historians doubt its veracity. The first modern solar furnace is believed to have been built in France in 1949 by Professor Félix Trombe.
Metal substrates ("Metal Mirror Reflectors") may also be used in solar reflectors. NASA Glenn Research Center, for example, used a mirror comprising a reflective aluminum surface on a metallic honeycomb [1] as a prototype reflector unit for a proposed power system for the International Space Station. One technology uses aluminum composite ...