Design of a prismatic concentrator in plastic material with reduced thickness and mass. Design, manufacturing and testing of a solar concentrator with hexagonal lenses suitable for asymmetric planar tracking achieved by means of shape memory actuators. Outdoor characterization of the functional unit of a hybrid module.<\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1396,1305,1300,1328],"targets":[1304,1317],"rapporti_tipologie":[762],"class_list":["post-209429","rapporti","type-rapporti","status-publish","hentry","tag-cpv-en","tag-energy-efficiency-en","tag-industrial-sector","tag-photovoltaics","targets-industrial-world","targets-research","rapporti_tipologie-report-en"],"acf":{"dont_show_hompage":true,"projects":{"ID":188400,"post_author":"464","post_date":"2024-06-13 15:10:01","post_date_gmt":"2024-06-13 13:10:01","post_content":"","post_title":"Integrated High Efficiency Photovoltaic Project","post_excerpt":"The goal of this project is to facilitate the development of high-efficiency, low-cost photovoltaic (PV) generation systems, while helping to maximize the energy production of the plants in Italy.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"integrated-high-efficiency-photovoltaic-project","to_ping":"","pinged":"","post_modified":"2024-07-03 11:13:04","post_modified_gmt":"2024-07-03 09:13:04","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/integrated-high-efficiency-photovoltaic-project\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
The research carried out involved the development of two solar concentrators for high concentration. The first, based on a prismatic optic, was designed with the aim of creating a prototype in plastic material. Its height is only 10 mm, significantly reducing both the size and the overall mass of the optical concentration system. The geometric concentration factor obtained is equal to 400x, while the simulated optical transmission efficiency is 89% with an acceptance angle of 0.8\u00b0. The second concentrator, consisting of hexagonal lenses, after the design was built and tested in the field.<\/p>\n
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The latter was in fact installed on a Complete Functional Unit (CFU) of a hybrid photovoltaic module, designed to combine CPV cells, dedicated to the conversion of direct solar radiation, and traditional silicon cells, used to convert diffuse and global radiation. The UFC also integrates an advanced solar tracking system, based on actuators made with shape memory materials, which allows precise alignment of the CPV cells to the spots focused by the concentrator. The geometric concentration factor is 400x, with an average light transmission greater than 80% over an angular field of \u00b1 17\u00b0 in one direction, and \u00b1 5\u00b0 in the orthogonal direction. The focal length of the concentrator is approximately 5 cm.<\/p>\n
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The UFC testing contributed to the validation of the draft of the IEC63387 standard for measuring the performance of hybrid PV\/CPV modules, which RSE is proposing within the IEC WG7 regulatory committee with other international partners. To this end, the tests conducted in the RSE laboratories in Piacenza were compared with those performed at the Polytechnic University of Madrid (UPM).<\/p>\n
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The analysis showed a very good correspondence between the CPV array measurements, with a deviation of less than 2%, and a conversion efficiency that is higher than 32% even at very high solar radiation incidence angles.<\/p>\n
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Some differences emerged in the evaluation of the power generated by traditional silicon photovoltaic cells, highlighting the need to further refine the measurement procedures.<\/p>\n
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Finally, RSE has developed an innovative control system for the solar tracker, currently in the preliminary verification phase, which aims to reduce costs and increase the reliability of the CPV technology.<\/p>\n
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The Report is available on the Italian site<\/strong><\/p>\n","link_estreno":false,"scarica_file":false,"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2024-12-31","autori":"F. Trespidi, E. Celi, Mario V. Imperatore, A. Minuto, S. Rizzi (RSE S.p.A.)","rapporto":"","rif_rse":"24013435"},"satellite_post_url":""},"yoast_head":"\n