{"id":26339,"date":"2012-03-26T21:03:35","date_gmt":"2012-03-26T18:03:35","guid":{"rendered":"http:\/\/www.fyysika.ee\/uudised\/?p=26339"},"modified":"2012-05-04T11:36:14","modified_gmt":"2012-05-04T08:36:14","slug":"uksteise-otsa-asetatud-fotoelemendid-suurendavad-valjundvoimsust-ligi-20-korda","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=26339","title":{"rendered":"\u00dcksteise otsa asetatud fotoelemendid suurendavad v\u00e4ljundv\u00f5imsust ligi 20 korda"},"content":{"rendered":"<div id=\"attachment_26340\" style=\"width: 522px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.fyysika.ee\/uudised\/wp-content\/uploads\/2012\/03\/solar-power-3d-stacks-mit-640x353.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-26340\" class=\"size-full wp-image-26340 \" title=\"solar-power-3d-stacks-mit-640x353\" src=\"http:\/\/www.fyysika.ee\/uudised\/wp-content\/uploads\/2012\/03\/solar-power-3d-stacks-mit-640x353.jpg\" alt=\"\" width=\"512\" height=\"282\" srcset=\"https:\/\/www.fyysika.ee\/wp-content\/uploads\/2012\/03\/solar-power-3d-stacks-mit-640x353.jpg 640w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2012\/03\/solar-power-3d-stacks-mit-640x353-300x165.jpg 300w, https:\/\/www.fyysika.ee\/wp-content\/uploads\/2012\/03\/solar-power-3d-stacks-mit-640x353-250x137.jpg 250w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/a><p id=\"caption-attachment-26340\" class=\"wp-caption-text\">Akordionisarnase struktuuriga \u00fcksteise otsa asetatud fotoelemendid.<\/p><\/div>\n<p>MIT teadlased asetasid suurel hulgal fotoelemente \u00fcksteise otsa, saades tulemuseks ligi 20 korda suurema v\u00e4ljundv\u00f5imsuse kui tavalised p\u00e4ikesepaneelide installatsioonid.<\/p>\n<p>P\u00e4ikeseenergia kasutamise (ning selle k\u00f5rge hinna) \u00fcheks suurimaks probleemiks on selle madal energiatihedus, mist\u00f5ttu on praktilise energiahulga saamiseks tarvis suurt pindala. Seet\u00f5ttu tuleb tihti katta kogu hoone katus p\u00e4ikesepaneelidega, et majapidamise energiakulud katta. Tuumaelektrijaamaga v\u00f5rdse koguse energia tootmiseks tuleks k\u00f5rbesse paigaldada k\u00fcmnete ruutkilomeetrite suuruseid maa-alasid katvas koguses p\u00e4ikesepaneele.<\/p>\n<p>Selle probleemi lahendamiseks ehitasid MIT teadlased fotoelementidest kolmem\u00f5\u00f5tmelise kuhja. Sellise konstruktsiooni p\u00f5hja pindala on v\u00f5rreldav tavalise lameda p\u00e4ikesepaneeliga, kuid nagu pildilt n\u00e4ha v\u00f5ib, siis on selle kogupindala kordades suurem. Teadlased proovisid mitmeid erinevaid kolmem\u00f5\u00f5tmelisi struktuure, nende seas ka kuupi, saades iga kord kaks kuni kaksk\u00fcmmend korda suurema v\u00e4ljundv\u00f5imsuse. Selle avastuse k\u00f5ige huvitavam k\u00fclg on aga see, et need kolmem\u00f5\u00f5tmelised struktuurid toodavad palju rohkem lisaenergiat siis, kui p\u00e4ike on horisondi l\u00e4hedal, st hommikul, \u00f5htul, talvel v\u00f5i siis ekvaatorist kaugematel laiuskraadidel. Tavaliste lamedate p\u00e4ikesepaneelidega on madala nurga all paistvat p\u00e4ikesevalgust raske p\u00fc\u00fcda, kuid akordioni sarnase struktuuriga (pildil) oleks see suhteline nurk ligi 45 kraadi.<\/p>\n<p>Loe l\u00e4hemalt: &#8220;<a href=\"http:\/\/www.extremetech.com\/extreme\/123719-mit-stacks-solar-panels-like-pancakes-increases-their-power-output-by-up-to-20x\">MIT stacks solar panels like pancakes, increases their power output by up to 20x<\/a>&#8220;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MIT teadlased asetasid suurel hulgal fotoelemente \u00fcksteise otsa, saades tulemuseks ligi 20 korda suurema v\u00e4ljundv\u00f5imsuse kui tavalised p\u00e4ikesepaneelide installatsioonid. P\u00e4ikeseenergia kasutamise (ning selle k\u00f5rge hinna) \u00fcheks suurimaks probleemiks on selle madal energiatihedus, mist\u00f5ttu on praktilise energiahulga saamiseks tarvis suurt pindala. Seet\u00f5ttu tuleb tihti katta kogu hoone katus p\u00e4ikesepaneelidega, et majapidamise energiakulud katta. Tuumaelektrijaamaga v\u00f5rdse koguse [&hellip;]<\/p>\n","protected":false},"author":32,"featured_media":26340,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[40,16],"tags":[53],"class_list":{"0":"post-26339","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-paev-pildis","8":"category-teadusuudis","9":"tag-tulevikuenergia","10":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/26339","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26339"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/26339\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/media\/26340"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}