Challenge and Research Trends of Solar Concentrators

Primary and secondary solar concentrators are of vital importance for advanced solar energy and solar laser researches. Some of the most recent developments in primary and secondary solar concentrators were firstly presented. A novel three-dimensional elliptical-shaped Fresnel lens analytical model...

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Other Authors: Liang, Dawei (Editor), Zhao, Changming (Editor)
Format: Electronic Book Chapter
Language:English
Published: Basel MDPI - Multidisciplinary Digital Publishing Institute 2022
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DOAB: description of the publication
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245 1 0 |a Challenge and Research Trends of Solar Concentrators 
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520 |a Primary and secondary solar concentrators are of vital importance for advanced solar energy and solar laser researches. Some of the most recent developments in primary and secondary solar concentrators were firstly presented. A novel three-dimensional elliptical-shaped Fresnel lens analytical model was put forward to maximize the solar concentration ratio of Fresnel-lens-based solar concentrators. By combining a Fresnel lens with a modified parabolic mirror, significant improvement in solar laser efficiency was numerically calculated. A fixed fiber light guide system using concave outlet concentrators was proposed. The absence of a solar tracking structure highlights this research. By shaping a luminescent solar concentrators in the form of an elliptic array, its emission losses was drastically reduced. Simple conical secondary concentrator was effective for thermal applications. New progresses in solar-pumped lasers by NOVA University of Lisbon were presented. By adopting a rectangular fused silica light guide, 40 W maximum solar laser power was emitted from a single Ce:Nd:YAG rod. An aspheric fused silica secondary concentrator and a small diameter Ce:Nd:YAG rod were essential for attaining 4.5 % record solar-to-laser power conversion efficiency. A novel solar concentrator design for the efficient production of doughnut-shaped and top-hat solar laser beams were also reported. More importantly, a novel solar concentrator approach for the emission of 5 kW-class TEM00 mode solar laser beams from one megawatt solar furnace was put forward at the end of this book, revealing promising future for solar-pumped lasers. 
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650 7 |a Technology: general issues  |2 bicssc 
650 7 |a History of engineering & technology  |2 bicssc 
653 |a luminescent solar concentrator 
653 |a solar spectrum splitter 
653 |a power generation in space 
653 |a microalgae 
653 |a beam merging 
653 |a multirod 
653 |a Nd:YAG 
653 |a solar furnace 
653 |a solar flux homogenizer 
653 |a solar laser 
653 |a TEM00-mode 
653 |a solar pumping 
653 |a twisted light guide 
653 |a top hat 
653 |a doughnut-shaped 
653 |a nanofluid 
653 |a conical concentrator system 
653 |a performance comparison 
653 |a thermal efficiency 
653 |a Fresnel lens 
653 |a Gaussian source 
653 |a groove number 
653 |a solar flux 
653 |a optical efficiency 
653 |a full width at half maximum 
653 |a concentrator 
653 |a light guide 
653 |a optical fiber solar system 
653 |a solar daylighting 
653 |a laser 
653 |a parabolic mirror 
653 |a solar concentrator 
653 |a collecting efficiency 
653 |a conical solar concentrator 
653 |a performance analysis 
653 |a solar energy 
653 |a Ce:Nd:YAG 
653 |a aspherical lens 
653 |a side-pumped 
653 |a uniformity 
653 |a light-guide 
653 |a homogenizer 
653 |a solar-pumped laser 
653 |a laser efficiency 
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