Performance comparison of Fresnel-based concentrator arrays

Rubén Mohedano; Aleksandra Cvetkovic; Pablo Benítez; Pablo Zamora; Juan C. Miñano; Julio Chaves; Maikel Hernandez; Marina Buljan; Juan Vilaplana

doi:10.1117/12.862253

18 August 2010 Performance comparison of Fresnel-based concentrator arrays

Rubén Mohedano, Aleksandra Cvetkovic, Pablo Benítez, Pablo Zamora, Juan C. Miñano, Julio Chaves, Maikel Hernandez, Marina Buljan, Juan Vilaplana

Author Affiliations +

Proceedings Volume 7785, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII; 778508 (2010) https://doi.org/10.1117/12.862253
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

At module level (one single solar cell), the Fresnel-Köhler (FK) concentrator comprises a perfect irradiance uniformity along with quite high concentration-acceptance angle product. At the same time, it maintains the efficiency/simplicity of other Fresnel-based concentrators. In this work we will show the FK concentrator has loose manufacturing tolerances as well. All these facts, along with the pill-box shape of its transmission curve, permit an enhanced performance of this device, compared to its competitors, at array level, because the system is more insensitive to manufacturing errors, and current mismatch is less likely to occur. Or the same performance can be achieved at a lower cost, exhausting the tolerance budget by using inexpensive fabrication techniques. Depending on the concentrator, the actual power delivered by an array might drop significantly with respect to the sum of the power delivered by single modules. Under certain circumstances, the FK can reach a 1-10% electrical efficiency increase with regards to other concentrators sharing the same technology.

Citation Download Citation

Rubén Mohedano, Aleksandra Cvetkovic, Pablo Benítez, Pablo Zamora, Juan C. Miñano, Julio Chaves, Maikel Hernandez, Marina Buljan, and Juan Vilaplana "Performance comparison of Fresnel-based concentrator arrays", Proc. SPIE 7785, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VII, 778508 (18 August 2010); https://doi.org/10.1117/12.862253

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