{"id":10388,"date":"2018-12-05T10:53:28","date_gmt":"2018-12-05T09:53:28","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesm-jmzafra\/?p=10388"},"modified":"2019-01-19T13:41:04","modified_gmt":"2019-01-19T12:41:04","slug":"lenergia-renovable","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/caterina-news\/lenergia-renovable\/","title":{"rendered":"L&#8217;energia renovable"},"content":{"rendered":"<h6><a href=\"https:\/\/agora.xtec.cat\/iesm-jmzafra\/wp-content\/uploads\/usu164\/2018\/11\/baixa.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-10414\" src=\"https:\/\/agora.xtec.cat\/iesm-jmzafra\/wp-content\/uploads\/usu164\/2018\/11\/baixa.jpg\" alt=\"\" width=\"275\" height=\"183\" \/><\/a><\/h6>\n<p><strong>Per Dominique Rodr\u00edguez Kurdin, 1r ESO<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">L&#8217;energia \u00e9s la capacitat de moure les m\u00e0quines o \u00e9ssers vius.\u00a0<\/span><span style=\"font-weight: 400;\">Quan parlem d\u2019energia renovable ens referim a l\u2019energia que es pot produir infinitament sense exhaurir les fonts que ens serveixen per obtenir-la ja que s\u00f3n fonts naturals. A m\u00e9s a m\u00e9s, l\u2019energia renovable no contamina i aix\u00f2 \u00e9s molt bo per al planeta terra.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Hi ha molts tipus de energia renovable: e\u00f2lica, solar, hidr\u00e0ulica, geot\u00e8rmica i biomassa. <\/span><!--more--><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>L\u2019energia e\u00f2lica<\/strong> \u00e9s l\u2019energia que s\u2019obt\u00e9 del vent. Antigament s\u2019aprofitava el vent per fer moure les aspes dels molins, en l\u2019actualitat es fan servir aerogeneradors que tenen unes turbines amb tres aspes molt grans les quals giren amb el vent.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>L&#8217;energia solar<\/strong> es la energia que s\u2019obt\u00e9 de la radiaci\u00f3 solar. B\u00e0sicament s\u2019aprofita de dues maneres produint energia solar t\u00e8rmica que es fa servir per cuinar o per escalfar aigua, i energia solar fotovolt\u00e0ica que s\u2019utilitza per fer electricitat.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>L\u2019energia hidr\u00e0ulica<\/strong> \u00e9s l\u2019energia que es produeix amb la for\u00e7a de l\u2019aigua, sigui la dels rius o la de les marees dels oceans, en aquest darrer cas s&#8217;anomena energia mareomotriu.\u00a0<\/span><\/p>\n<p>Per si teniu curiositat aqu\u00ed teniu un petit v\u00eddeo explicatiu de com funciona una central hidroel\u00e8ctrica:<\/p>\n<div class=\"ast-oembed-container \" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"\u00bfC\u00f3mo funciona la energ\u00eda hidr\u00e1ulica? - Sostenibilidad | ACCIONA\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Xx_Lxg4hCjc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>L\u2019energia geot\u00e8rmica<\/strong> \u00e9s la energia que s\u2019obt\u00e9 de l\u2019interior de la terra ja que el subsol es mant\u00e9 una temperatura estable i es pot aprofitar l&#8217;escalfor. En canvi, les capes m\u00e9s superficials de l\u2019escor\u00e7a terrestre varien de temperatura segons el temps. <\/span><span style=\"font-weight: 400;\">L\u2019energia que prov\u00e9 de volcans i de gu\u00e8isers tamb\u00e9 \u00e9s energia geot\u00e8rmica.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>L\u2019energia de la biomassa<\/strong> \u00e9s la que s\u2019obt\u00e9 de l\u2019aprofitament de plantes i residus vegetals i animals. \u00a0<\/span><\/p>\n<p><a href=\"https:\/\/agora.xtec.cat\/iesm-jmzafra\/wp-content\/uploads\/usu164\/2018\/11\/rotor-onipko-3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-10413 alignright\" src=\"https:\/\/agora.xtec.cat\/iesm-jmzafra\/wp-content\/uploads\/usu164\/2018\/11\/rotor-onipko-3.jpg\" alt=\"\" width=\"293\" height=\"195\" srcset=\"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-content\/uploads\/usu164\/2018\/11\/rotor-onipko-3.jpg 600w, https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-content\/uploads\/usu164\/2018\/11\/rotor-onipko-3-300x200.jpg 300w\" sizes=\"auto, (max-width: 293px) 100vw, 293px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Us explicar\u00e9 una curiositat en relaci\u00f3 a l&#8217;<strong>energia e\u00f2lica<\/strong>. A Ucra\u00efna, el cient\u00edfic <strong>Rotor Onipko<\/strong>, doctor en ci\u00e8ncies t\u00e8cniques, ha inventat un aerogenerador que funciona incl\u00fas si fa poc vent. A m\u00e9s a m\u00e9s, t\u00e9 l\u2019avantatge que quasi no fa soroll i es pot instal\u00b7lar prop dels domicilis. <\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">En el seg\u00fcent v\u00eddeo angl\u00e8s podreu visualitzar el rotor Onipko en funcionament:<\/span><\/p>\n<div class=\"ast-oembed-container \" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"The Onipko rotor\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/-EH7LD6ecmw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Les energies renovables, en l\u2019actualitat, tenen algunes desavantatges. En general, les instal\u00b7lacions surten m\u00e9s cares per la qual cosa molta gent encara opta per les energies tradicionals, malgrat el perjudici que causen a la natura. Tamb\u00e9 es pot donar el cas que la font de producci\u00f3 no sempre estigui disponible, per exemple, quan est\u00e0 n\u00favol i no fa sol, o si no fa vent, o no disposem d\u2019aigua&#8230; Un altre inconvenient \u00e9s que pot ser necessari molt d\u2019espai o que sigui dif\u00edcil emmagatzemar l&#8217;energia que produ\u00efm.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Jo penso que les energies renovables ens poden servir per moltes coses \u00fatils. S\u00f3n importants per tenir energ\u00eda infinita i per no contaminar el planeta. <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Per Dominique Rodr\u00edguez Kurdin, 1r ESO L&#8217;energia \u00e9s la capacitat de moure les m\u00e0quines o \u00e9ssers vius.\u00a0Quan parlem d\u2019energia renovable ens referim a l\u2019energia que es pot produir infinitament sense exhaurir les fonts que ens serveixen per obtenir-la ja que s\u00f3n fonts naturals. A m\u00e9s a m\u00e9s, l\u2019energia renovable no contamina i aix\u00f2 \u00e9s molt [&hellip;]<\/p>\n","protected":false},"author":193,"featured_media":0,"comment_status":"closed","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[286,438],"tags":[],"class_list":["post-10388","post","type-post","status-publish","format-standard","hentry","category-caterina-news","category-nothoperdis"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/10388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/users\/193"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/comments?post=10388"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/10388\/revisions"}],"predecessor-version":[{"id":10671,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/posts\/10388\/revisions\/10671"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/media?parent=10388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/categories?post=10388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/inscaterinaalbert\/wp-json\/wp\/v2\/tags?post=10388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}