Selective Surface
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Details
In solar thermal collectors, a selective surface is a means of increasing its operation temperature and/or efficiency. The selectivity is defined as the ratio of radiation-absorption (alpha) to radiation-emission (epsilon). Selective surfaces take advantage of the differing wavelengths of incident solar radiation and the emissive radiation from the absorbing surface. Normally, a combination of materials is used. One of the first selective surfaces investigated was simply copper with a layer of black cupric oxide. Black chromium ("black chrome") nickel-plated copper is another selective surface that is very durable, highly resistant to humidity or oxidizing atmospheres and extreme temperatures while being able to retain its selective properties - but expensive. Another combination consists of steel plated with gold, silicon, and silicon dioxide.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786138552826
- Genre Technik
- Auflage Aufl.
- Editor Antigone Fernande
- Sprache Englisch
- Anzahl Seiten 96
- Herausgeber SPIR
- Größe H5mm x B220mm x T150mm
- Jahr 2011
- EAN 9786138552826
- Format Kartonierter Einband (Kt)
- ISBN 978-613-8-55282-6
- Titel Selective Surface
- Untertitel Solar Thermal Collector
- Gewicht 144g
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