A new solar concentrating system: Description, characterization and applications

Solar concentrating systems are usually very expensive and require a large space for their installation. This article presents a new solar concentrating device which is low-cost, small-scale, and has very good features for materials treatment. It consists of two sets of mirrors that reflect solar ra...

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Veröffentlicht in:	Solar energy 2011-05, Vol.85 (5), p.1000-1006
Hauptverfasser:	Llorente, J., Ballestrín, J., Vázquez, A.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Arrays Beams (radiation) Concentrated solar energy Density Devices Energy Exact sciences and technology Heat treatments Measurement Natural energy Radiation Radiometers Solar collectors Solar concentrator Solar energy Solar flux measurement Solar power generation Solar processing Solar radiation Solar thermal conversion
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Beschreibung
Zusammenfassung:	Solar concentrating systems are usually very expensive and require a large space for their installation. This article presents a new solar concentrating device which is low-cost, small-scale, and has very good features for materials treatment. It consists of two sets of mirrors that reflect solar radiation in two steps with a beam array similar to a Fresnel lens. The power density was measured with Gardon-type radiometers. The results are in good agreement with previous work. The system has a nominal power of 2.5 kW, a measured concentration factor of 1040, and a measured focal diameter of 20 mm (90% of power level).
ISSN:	0038-092X 1471-1257
DOI:	10.1016/j.solener.2011.02.018