Absorber (solar technology)

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Schematic of absorber in a flat-plate collector

An absorber is the part of the solar collector that converts solar radiation into heat.

The incident solar radiation is converted into thermal energy by absorption and given off to a flowing liquid. In most cases, the irradiated area is a dark metal surface with a selective absorber layer to increase the degree of absorption. Inside the solar collector there are liquid channels in which solar liquid flows, which then transports the heat to the buffer storage . With swimming pool absorbers, the heat is directly absorbed and passed on to the liquid, directly in the hose. The term appears in DIN V 4757-3.

literature

  • Chapter 4.6 Selective absorbers. In: R. Stieglitz, V. Heinzel: Thermal solar energy: Fundamentals, technology, applications. Springer-Vieweg, Berlin / Heidelberg 2012, ISBN 978-3-642-29474-7 , pp. 252-268.
  • Chapter 5.3 Absorber . In: Peuser, Remmers, Schnauss: Long-term experience with solar thermal energy. Solarpraxis, Berlin 2001, ISBN 3-934595-07-3 , pp. 117-127.
  • Absorber. In: NK Peter: Lexikon Bautechnik. CF Müller, 2nd expanded edition from 2005, ISBN 3-7880-7763-8 , p. 21.
  • Absorber. In: H. Weik: Expert Praxislexikon: Solar energy and solar technologies. 2nd revised edition from 2006, expert Verlag, ISBN 978-3-8169-2538-5 , pp. 2-3.

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