NDLI: Study on the Performance of Optical Lenses under High Fluxes of Solar Radiation

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Study on the Performance of Optical Lenses under High Fluxes of Solar Radiation

Content Provider	MDPI
Author	Rosa, Luís Pereira, José Rahmani, Kaveh Almeida, Guilherme Santos, Luís
Copyright Year	2021
Description	This work compares the performance of optical lenses made of silica glass or borosilicate glass (BK-7) when submitted to high-flux radiation emitted by a xenon arc lamp or provided by a high-concentration solar tower. Each irradiation test lasted for 60 min, with continuous monitoring of the radiation-flux incident on the lenses and the temperature generated in their vicinity. All silica glass lenses showed a good performance with both irradiation sources, xenon arc lamp and natural solar radiation, contrary to what was observed with the lenses made of borosilicate glass which fractured when irradiated with a xenon arc lamp. The negative behavior observed with the borosilicate lenses is attributed to the fact that the radiation spectrum of a xenon arc lamp contains certain wavelengths, in the near ultraviolet (UV) region, that are not present in the natural solar radiation spectrum at sea level.
Starting Page	5174
e-ISSN	20763417
DOI	10.3390/app11115174
Journal	Applied Sciences
Issue Number	11
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2021-06-02
Access Restriction	Open
Subject Keyword	Applied Sciences Marine Engineering Concentrated Solar Radiation Optical Lenses Borosilicate Glass Silica Glass
Content Type	Text
Resource Type	Article

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