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Encyclopedia > Solar hot water panel
A solar heater
A solar heater
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A laundromat in California with solar hot water panels on the roof.

A solar hot water panel is a solar water heater that uses the sun's energy to heat a fluid, which is used to transfer the heat to a heat storage vessel. In the home, for example, sanitary hot water would be heated and stored in a hot water cylinder. Panels usually placed on the roof have an absorber plate to which fluid circulation tubes are attached. The absorber, usually coated with a dark selective coating, assures the conversion of the sun's radiation into heat, while fluid circulating through the tubes carries the heat away where it can be used or stored. The heated fluid is pumped to a heat exchanger, which is a coil in the storage vessel or an external heat exchanger where it gives off its heat and is then circulated back to the panel to be reheated. Fluid circulation can be assisted by means of a mechanical pump (which itself could be powered by photovoltaic cell), or in the case of a ground-mounted solar panel, by convection to circulate the fluid to the storage vessel mounted higher in the circuit. ImageMetadata File history File links Download high resolution version (2592x1944, 2254 KB) Solar water heater used in the Cirque de Mafate, Réunion Copyright © 2005 David Monniaux Template:Cc-by-sa-2. ... ImageMetadata File history File links Download high resolution version (2592x1944, 2254 KB) Solar water heater used in the Cirque de Mafate, Réunion Copyright © 2005 David Monniaux Template:Cc-by-sa-2. ... Image File history File links Download high resolution version (1026x768, 1495 KB) Summary Photographed by Alan Mak on September 3rd, 2005. ... Image File history File links Download high resolution version (1026x768, 1495 KB) Summary Photographed by Alan Mak on September 3rd, 2005. ... A laundromat (U.S.), launderette (British), Washette (Southeastern U.S.) or washateria (Southwestern U.S.) is a store where clothes are washed and dried. ... Official language(s) English Capital Sacramento Largest city Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ... A trio of propane hot water heaters. ... A subset of the phases of matter, fluids include liquids, gases, plasmas and, to some extent, plastic solids. ... Sanitation is a term for the hygienic disposal or recycling of waste materials, particularly human excrement. ... A roof tiled in imitation of thatch at Croyde, north Devon, England Rooftops in Vietnam Snow on the roof Roofs are one of the universal structures found on all buildings. ... TUBE (チューブ; chūbu) is a Japanese popular music group. ... In high energy physics experiments, an absorber is a block of material used to absorb some of the energy of an incident particle. ... Radiation in physics is a process of emission of energy or particles. ... The word circulation can mean the following: The transport of blood through the circulatory system. ... A heat exchanger is a device built for efficient heat transfer from one fluid to another, whether the fluids are separated by a solid wall so that they never mix, or the fluids are directly contacted. ... A coil is a series of loops. ... Convection is the transfer of heat by currents within a fluid. ...


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