{"id":20375,"date":"2024-06-10T15:23:23","date_gmt":"2024-06-10T13:23:23","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=20375"},"modified":"2024-06-10T16:23:22","modified_gmt":"2024-06-10T14:23:22","slug":"descobrim-lenergia-solar-2","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/descobrim-lenergia-solar-2\/","title":{"rendered":"Descobrim l\u2019energia solar"},"content":{"rendered":"<p style=\"font-weight: 400;\">Divendres 31 de maig de 2024 l\u2019alumnat de 5\u00e8 de prim\u00e0ria de <a href=\"https:\/\/agora.xtec.cat\/escolamercerodoredamartorell\/\" target=\"_blank\" rel=\"noopener\">l\u2019Escola Merc\u00e8 Rodoreda<\/a> de Martorell ha vingut a realitzar el projecte <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/recursos-del-medi-i-sostenibilitat\/el-nostre-amic-el-sol\/\" target=\"_blank\" rel=\"noopener\">El nostre amic el Sol.<\/a><\/p>\n<p style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-20378 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/06\/3-rotated.jpg\" alt=\"\" width=\"207\" height=\"276\" \/>La benvinguda al <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/\" target=\"_blank\" rel=\"noopener\">Camp d\u2019aprenentatge Can Santoi<\/a> ha sigut ben c\u00e0lida, doncs han comen\u00e7at identificant els diferents tipus de radiaci\u00f3 que ens envia el Sol i quines utilitats poden tenir. A m\u00e9s, tamb\u00e9 han reflexionat sobre els perills de les radiacions m\u00e9s energ\u00e8tiques com els raigs X o els UV, i sobre l\u2019efecte dels colors foscos i l\u2019efecte hivernacle en relaci\u00f3 a l\u2019absorci\u00f3 de la calor.<\/p>\n<p style=\"font-weight: 400;\">A continuaci\u00f3 s\u2019han dividit en 6 grups i, entre tots, han participat en els seg\u00fcents tallers: la cuina solar, els col\u00b7lectors solars i la producci\u00f3 d\u2019electricitat amb les plaques fotovoltaiques.<\/p>\n<p style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-20377\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/06\/2.jpg\" alt=\"\" width=\"188\" height=\"251\" \/>Tres grups s\u2019han convertit en cuiners solars per comprovar que la forma parab\u00f2lica \u00e9s la que permet concentrar els raigs del Sol en un \u00fanic punt central, just on han col\u00b7locat una olla de color negre. Tamb\u00e9 han apr\u00e8s a orientar correctament la cuina per aprofitar al m\u00e0xim la calor. Cada 10 minuts han mesurat la temperatura de l\u2019aigua amb el term\u00f2metre i han vist que, tot i el mal temps, ha augmentat fins arribar gaireb\u00e9 als 50\u00baC. Un cel cada cop m\u00e9s tapat de n\u00favols no els ha perm\u00e8s cuinar les pomes al forn tal i com havien previst, per\u00f2 han pres consci\u00e8ncia de la utilitat d\u2019aquestes cuines tant senzilles per cuinar en llocs amb pocs recursos energ\u00e8tics.<\/p>\n<p style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-20376 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/06\/1.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/06\/1.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/06\/1-200x150.jpg 200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Els tres grups restants han fet d\u2019escalfadors d\u2019aigua i amb uns col\u00b7lectors solars (unes capses de fusta ja preparades amb uns a\u00efllants a l\u2019interior i una m\u00e0nega negra amb aigua a dins) han muntat tres prototips similars, per\u00f2 amb diferent nombre de vidres de cobertora: un sense vidre, un altre amb un vidre i un tercer amb dos vidres. Aquest experiment els ha servit per comprendre que podem aprofitar la calor que ens proporciona el Sol per escalfar aigua i que els vidres s\u00f3n imprescindibles per recrear un efecte hivernacle al col\u00b7lector.<\/p>\n<p style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-20389\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/06\/portada.jpg\" alt=\"\" width=\"290\" height=\"217\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/06\/portada.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2024\/06\/portada-200x150.jpg 200w\" sizes=\"auto, (max-width: 290px) 100vw, 290px\" \/>Finalment tots han participat al taller de producci\u00f3 d\u2019electricitat amb les plaques fotovoltaiques. Han apr\u00e8s que representen una bona oportunitat per anar canviant els sistemes d\u2019obtenci\u00f3 d\u2019energia neta, dels recursos f\u00f2ssils a les renovables. En el taller han constru\u00eft un petit circuit per veure com la llum del Sol es transforma en un corrent el\u00e8ctric capa\u00e7 de moure un petit molinet.<\/p>\n<p style=\"font-weight: 400;\">Heu treballat de valent, enhorabona i fins ben aviat!<\/p>\n<p style=\"font-weight: 400;\">\n","protected":false},"excerpt":{"rendered":"<p>Divendres 31 de maig de 2024 l\u2019alumnat de 5\u00e8 de prim\u00e0ria de l\u2019Escola Merc\u00e8 Rodoreda de Martorell ha vingut a realitzar el projecte El nostre amic el Sol. La benvinguda al Camp d\u2019aprenentatge Can Santoi ha sigut ben c\u00e0lida, doncs han comen\u00e7at identificant els diferents tipus de radiaci\u00f3 que ens envia el Sol i quines [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":20376,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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