{"id":99,"date":"2019-11-08T14:45:51","date_gmt":"2019-11-08T14:45:51","guid":{"rendered":"https:\/\/solartechlab.wordpress.com\/?page_id=99"},"modified":"2021-11-12T11:55:17","modified_gmt":"2021-11-12T10:55:17","slug":"pvt","status":"publish","type":"page","link":"http:\/\/www.solartech.polimi.it\/activities\/pvt\/","title":{"rendered":"Photovoltaic\/thermal collector &#8211; PV\/T"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-3\">\n<div class=\"wp-block-column is-layout-flow\" style=\"flex-basis:60%\">\n<p class=\"has-normal-font-size\"> <strong>Photovoltaic Thermal hybrid solar collectors<\/strong>, aka <strong>hybrid PV\/T systems <\/strong>or <strong>PV\/T<\/strong>, are systems that convert solar radiation into thermal and electrical energy. Conventional PV modules can convert only a small part of the incoming energy into electrical power, so the remaining part is dissipated as heat. PV\/T collectors recover part of that heat, improving first-law efficiency of the module.<\/p>\n\n\n\n<p class=\"has-normal-font-size\">A thermal loop has been installed to measure thermal efficiency of PV\/T panels in real environmental conditions. Three hydraulic branches in parallel are present, in order to conduct simultaneous analyses, connected to a common heat storage tank. An air dry cooler with variable-speed fans is used to dissipate the heat produced.<\/p>\n\n\n\n<p class=\"has-normal-font-size\">Measurements of temperature, mass flow and pressure allows to establish the thermal power recovered and corresponding auxiliary consumptions, while micro-inverters collects the electrical production of PV\/T panels individually.<\/p>\n\n\n\n<p class=\"has-normal-font-size\">Operating conditions of the fluid inside the panels (i.e. flowrate and temperature) can be set and controlled by a LabVIEW<sup>\u00ae<\/sup> interface, so that a wide range of operating conditions can be evaluated.<\/p>\n\n\n\n<p class=\"has-text-align-left has-normal-font-size\">Innovative PV\/T concepts are currently tested in the laboratory and also mathematical models are developed and validated by experimental campaigns iresidential applications) and to design more efficient circuitries of the heat exchanger.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow\" style=\"flex-basis:40%\">\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/pvt_comparison-768x360-1.png\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/pvt_comparison-768x360-1.png\" alt=\"\" class=\"wp-image-1043\" width=\"768\" height=\"360\" srcset=\"http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/pvt_comparison-768x360-1.png 768w, http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/pvt_comparison-768x360-1-300x141.png 300w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a><figcaption><em>Experimental facility for PV\/T performance comparison<\/em><\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-background has-vivid-red-background-color has-vivid-red-color\"\/>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/characteristic_curve-1_1000.png\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/characteristic_curve-1_1000.png\" alt=\"\" class=\"wp-image-1042\" width=\"1000\" height=\"539\" srcset=\"http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/characteristic_curve-1_1000.png 1000w, http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/characteristic_curve-1_1000-300x162.png 300w, http:\/\/www.solartech.polimi.it\/wp-content\/uploads\/2020\/03\/characteristic_curve-1_1000-768x414.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a><figcaption><em>Characteristic curve of a tested PV\/T panel<\/em><\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Photovoltaic Thermal hybrid solar collectors, aka hybrid PV\/T systems or PV\/T, are systems that convert solar radiation into thermal and electrical energy. Conventional PV modules can convert only a small part of the incoming energy into electrical power, so the remaining part is dissipated as heat. PV\/T collectors recover part of that heat, improving first-law&#8230;<\/p>\n<p class=\"more-link\"><a href=\"http:\/\/www.solartech.polimi.it\/activities\/pvt\/\"><span>Read More<\/span><i>&#43;<\/i><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"parent":80,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0},"_links":{"self":[{"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/pages\/99"}],"collection":[{"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/comments?post=99"}],"version-history":[{"count":9,"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/pages\/99\/revisions"}],"predecessor-version":[{"id":1310,"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/pages\/99\/revisions\/1310"}],"up":[{"embeddable":true,"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/pages\/80"}],"wp:attachment":[{"href":"http:\/\/www.solartech.polimi.it\/wp-json\/wp\/v2\/media?parent=99"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}