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

Rosa, Luís Guerra ; Pereira, José Carlos Garcia ; Rahmani, Kaveh ; Almeida, Guilherme De ; Santos, Luís F.

Applied sciences, 2021-06, Vol.11 (11), p.5174 [Periódico revisado por pares]

Basel: MDPI AG

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Título:
Study on the Performance of Optical Lenses under High Fluxes of Solar Radiation
Autor: Rosa, Luís Guerra ; Pereira, José Carlos Garcia ; Rahmani, Kaveh ; Almeida, Guilherme De ; Santos, Luís F.
Assuntos: Arc lamps ; Borosilicate glass ; Cables ; concentrated solar radiation ; Electricity distribution ; Furnaces ; Heat ; Irradiation ; optical lenses ; Radiation ; Radiometers ; Sea level ; Silica ; Silica glass ; Solar energy ; Solar radiation ; Wavelengths ; Xenon
É parte de: Applied sciences, 2021-06, Vol.11 (11), p.5174
Descrição: 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.
Editor: Basel: MDPI AG
Idioma: Inglês

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

Rosa, Luís Guerra ; Pereira, José Carlos Garcia ; Rahmani, Kaveh ; Almeida, Guilherme De ; Santos, Luís F.

Basel: MDPI AG

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