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Industrial steam generation follows a similar process as the electricity generation on a CSP plant.
Parabolic troughs heat up a heat transfer fluid. This fluid is pumped to an evaporator, where steam is produced through heat exchange with the heat transfer fluid coming from the solar field.
This system fulfills lots of applications within the industry, for heat.
Solar Troughs: Its function is to convert solar energy into heat in a circulating fluid. Depending on the type and size of the project a different trough will be used.
For installations that require large amounts of steam, a large land area is needed. In this case, a large CSP troughs, normally used for electricity generation, may be the most appropiateappropriate.
For medium volume steam requirements, either the PT-1 or RMT trough systems may be most suitable.
Solar Troughs: Its function is to concentrate the radiation and heat a heat fluid trasnfer. Depending on the type and size of the project a different trough will be used.
Steam Generation
Steam is a common medium used in industry for process heating. In a typical design, a heat transfer medium, whether pressurized water or heat transfer oil is used to deliver solar energy to an unfired steam generator. The solar heat causes water to boil. When the pressure in the steam generator reaches the pressure in the steam header, solar steam is delivered to the load. The solar steam reduces the amount of fossil fuel used for the conventional steam generation process. Boiler feedwater is admitted into the steam generator on level control to replace the steam lost.
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