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Solar thermal utilization in the sun, the key is the radiant energy converted to heat energy. Because solar more decentralized, must try to put it together, so solar energy collector is all sorts of use solar energy device key components. Due to the use of different, collectors and matching system type is divided into many kinds, the name is different, if used for cooking the cooker, used to produce hot water solar water heater , used in the dry goods for solar drying machine, the solar furnace, melting metal and sun room, solar thermal power plant, solar seawater desalination is waited a moment.
Solar collectors though not direct-to-consumer end products, but solar energy collector is comprised of all kinds of solar thermal utilization system key components. Whether solar water heater, solar ovens, active sun room, solar greenhouse or solar drying, the solar energy industry heating, solar thermal power generation, etc are inseparable from solar energy collector, are based on solar energy collector as system of power or core components.
When plate-type solar hot water work, solar radiation through transparent cover cast on the absorption after board was heat-sink plate absorbs and translated into heat energy, and then passed to the absorption of heat transfer medium in the plate, the temperature of heat transfer medium, as a collector of useful energy output; Meanwhile, temperature of heat-trapping board after the inevitable by conduction, convection and radiation way around to heat dissipation, become collectors heat loss.
Many people think that flat solar panel to heat the solar water heating system (or produce a water yield) than in the vacuum tube collectors hot water system, the actual testing showed that the black chrome choose coating flat collector hot water system produce a water yield than the vacuum tube collectors total same hot water system. Solar energy collector is defined as the absorb solar radiation and heat transfer to will produce heat transfer media device. This short definition it contains a rich meaning: first: solar energy collector is a device; Second: solar energy collector can absorb solar radiation; Third: solar can collectors can generate heat; Fourth: solar energy collector can will heat transfer to the heat transfer medium.