{"id":3995,"date":"2023-04-11T10:10:06","date_gmt":"2023-04-11T10:10:06","guid":{"rendered":"https:\/\/csiag.eu\/?p=3995"},"modified":"2023-04-11T12:04:51","modified_gmt":"2023-04-11T12:04:51","slug":"rendimento-lux-e-pv","status":"publish","type":"post","link":"https:\/\/csiag.eu\/pt\/blog\/2023\/04\/11\/lux-und-pv-ertrag\/","title":{"rendered":"Lux e rendimento fotovoltaico"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/csiag.eu\/pt\/blog\/2023\/04\/11\/lux-und-pv-ertrag\/#Lux-Messung\" >Medi\u00e7\u00e3o Lux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/csiag.eu\/pt\/blog\/2023\/04\/11\/lux-und-pv-ertrag\/#Variablen\" >vari\u00e1veis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/csiag.eu\/pt\/blog\/2023\/04\/11\/lux-und-pv-ertrag\/#Programm\" >programa<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/csiag.eu\/pt\/blog\/2023\/04\/11\/lux-und-pv-ertrag\/#Skript\" >roteiro<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/csiag.eu\/pt\/blog\/2023\/04\/11\/lux-und-pv-ertrag\/#Visualisierung\" >Visualiza\u00e7\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Tempo de leitura<\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutos<\/span><\/span>\n<p>1 lux representa 1 l\u00famen por metro<sup>2<\/sup>. No \u00e2mbito do c\u00e1lculo da pot\u00eancia dos sistemas fotovoltaicos planeados, os valores dos aparelhos de medi\u00e7\u00e3o da energia solar em watts por m<sup>2<\/sup> \u00e9 indicado. Este valor, multiplicado pelos metros quadrados planeados, d\u00e1 o rendimento energ\u00e9tico esperado.<\/p>\n\n\n\n<p>O chamado. <em>Constante solar<\/em>  representa a pot\u00eancia radiante do sol a 1,361 W\/m<sup>2<\/sup> no espa\u00e7o. Para calcular os watts efectivos por m<sup>2<\/sup>A radia\u00e7\u00e3o que atinge efetivamente os m\u00f3dulos fotovoltaicos deve ter em conta v\u00e1rios factores de atenua\u00e7\u00e3o (atmosfera, neblina, polui\u00e7\u00e3o por poeiras, etc.), que tamb\u00e9m est\u00e3o em constante mudan\u00e7a.<\/p>\n\n\n\n<p>Quanto mais acentuada for a incid\u00eancia da luz e quanto mais pr\u00f3ximo do equador, maior ser\u00e1 o rendimento. S\u00f3 a diferen\u00e7a relativamente pequena de latitude entre a Alemanha e a \u00c1ustria resulta num rendimento cerca de 12 % mais elevado.<\/p>\n\n\n\n<p>Se quiser obter uma estimativa aproximada da pot\u00eancia radiante efetivamente utiliz\u00e1vel a partir dos valores de lux medidos, pode assumir aproximadamente lux \/ 900.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lux-Messung\"><\/span>Medi\u00e7\u00e3o Lux<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Para o Homematic e o RaspberryMatic existe um <a href=\"https:\/\/de.elv.com\/elv-homematic-ip-komplettbausatz-lichtsensor-aussen-hmip-slo-fuer-smart-home-hausautomation-151598?utm_source=affiliate&amp;utm_medium=feed&amp;utm_campaign=affiliate_idealo&amp;awc=11447_1681206327_0134b83283bc30fc0cf5858471824d9d\" target=\"_blank\" rel=\"noreferrer noopener\">Sensor de luz<\/a>que abrange uma gama de medi\u00e7\u00e3o de 0,01 lx a 83680 lx.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Variablen\"><\/span>vari\u00e1veis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>As seguintes vari\u00e1veis de tipo <code>N\u00famero<\/code> devem ser criados:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>LS_<\/code>m\u00e9dia<\/li>\n\n\n\n<li><code>Wm_2<\/code><\/li>\n\n\n\n<li><code>Wm_2_g<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Programm\"><\/span>programa<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>O programa ser\u00e1 <code>atualizar<\/code> do valor medido enviado \u00e9 acionada e o script contido \u00e9 executado.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"287\" src=\"https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-4-1024x287.png\" alt=\"\" class=\"wp-image-4017\" srcset=\"https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-4-1024x287.png 1024w, https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-4-1536x430.png 1536w, https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-4-2048x574.png 2048w, https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-4-300x84.png 300w, https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-4-768x215.png 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Skript\"><\/span>roteiro<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>O valor lux \u00e9 determinado pelo canal <code>1:AVARAGE_ILLUMINATION<\/code> do sensor de luz e armazenado na vari\u00e1vel <code>LS_<\/code>m\u00e9dia de salvamento.<\/p>\n\n\n\n<p>A convers\u00e3o em valores aproximados de W\/m<sup>2<\/sup> \u00e9 calculado dividindo<code> LS_<\/code>m\u00e9dia atrav\u00e9s de <code>1300<\/code> e \u00e9 armazenado na vari\u00e1vel <code>Wm_2<\/code> guardado.<\/p>\n\n\n\n<p>O rendimento total aproximado, correspondente \u00e0 \u00e1rea do m\u00f3dulo instalado, \u00e9 calculado multiplicando o rendimento em metros quadrados pela soma das \u00e1reas dos m\u00f3dulos (aqui <code>7,68<\/code> eu<sup>2<\/sup>), armazenado na vari\u00e1vel <code>Wm_2_g<\/code>.<\/p>\n\n\n\n<p> <\/p>\n\n\n\n<p><code>var avgLS = dom.GetObject(\"HmIP-RF.000D5F29ADD1DB:1.AVERAGE_ILLUMINATION\").Value();<br>dom.GetObject('LS_avg').State(avgLS);<\/code><\/p>\n\n\n\n<p><code>var Wm_2 = avgLS \/ 1300;<br>dom.GetObject('Wm2').State(Wm_2);<\/code><\/p>\n\n\n\n<p><code>! 7,68 metros quadrados de \u00e1rea total do m\u00f3dulo<\/code><\/p>\n\n\n\n<p><code>var Wm_2_g = Wm_2 * 7,68;<br>dom.GetObject('Wm2_g').State(Wm_2_g);<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Visualisierung\"><\/span>Visualiza\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>A visualiza\u00e7\u00e3o atrav\u00e9s do AIO Creator tem ent\u00e3o o seguinte aspeto, por exemplo:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-5.png\" alt=\"\" class=\"wp-image-4022\" width=\"214\" height=\"183\" srcset=\"https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-5.png 392w, https:\/\/csiag.eu\/wp-content\/uploads\/2023\/04\/image-5-300x257.png 300w\" sizes=\"(max-width: 214px) 100vw, 214px\" \/><\/figure>\n<\/div>\n\n\n<p>O intervalo de valores para o ecr\u00e3 \u00e9 <code>0<\/code> e <code>83680<\/code>o valor m\u00e1ximo de medi\u00e7\u00e3o poss\u00edvel do sensor de luz.<\/p>\n\n\n\n<p>\u00c9 apresentado o valor lux atualmente medido, a pot\u00eancia m\u00e9dia por metro quadrado e a pot\u00eancia total aproximada resultante da \u00e1rea total instalada.<\/p>","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Tempo de leitura<\/span> <span class=\"rt-time\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutos<\/span><\/span>1 lux representa 1 l\u00famen por m2. Em rela\u00e7\u00e3o ao c\u00e1lculo da pot\u00eancia dos sistemas fotovoltaicos planeados, os valores dos aparelhos de medi\u00e7\u00e3o da energia solar s\u00e3o indicados em watts por m2 . Este valor, multiplicado pelos metros quadrados planeados, d\u00e1 o rendimento energ\u00e9tico esperado. A chamada constante solar descreve a sa\u00edda de radia\u00e7\u00e3o do sol como 1.361 W\/m2 no espa\u00e7o. Para o c\u00e1lculo da pot\u00eancia efectiva em watt...&nbsp;<a href=\"https:\/\/csiag.eu\/pt\/blog\/2023\/04\/11\/lux-und-pv-ertrag\/\" rel=\"bookmark\">Ler mais \"<span class=\"screen-reader-text\">Lux e rendimento fotovoltaico<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1353,347,1260],"tags":[1385,1357,377,1386,1377,1382,1374,1379,1384,1380,372,638,1375,902,371,1383,1381,891,683,894,1378],"class_list":["post-3995","post","type-post","status-publish","format-standard","hentry","category-pv-anlage","category-smarthome-im-wohnmobil","category-stromerzeugung","tag-energie-ertrag","tag-ertrag","tag-homematic","tag-leistungsberechnung","tag-lichtsensor","tag-lumen","tag-lux","tag-lux-messung","tag-messgeraet","tag-modulflaeche","tag-programm","tag-pv-anlage","tag-pv-ertrag","tag-raspberrymatic","tag-skript","tag-solarenergie","tag-solarkonstante","tag-sonne","tag-strahlungsleistung","tag-umrechnung","tag-watt"],"modified_by":"Achim Goerner","_links":{"self":[{"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/posts\/3995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/comments?post=3995"}],"version-history":[{"count":0,"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/posts\/3995\/revisions"}],"wp:attachment":[{"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/media?parent=3995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/categories?post=3995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csiag.eu\/pt\/wp-json\/wp\/v2\/tags?post=3995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}