{"id":47100,"date":"2019-11-03T06:12:03","date_gmt":"2019-11-03T05:12:03","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-armazenamento-termoquimico-definicao\/"},"modified":"2019-11-03T06:12:03","modified_gmt":"2019-11-03T05:12:03","slug":"o-que-e-armazenamento-termoquimico-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-armazenamento-termoquimico-definicao\/","title":{"rendered":"O que \u00e9 armazenamento termoqu\u00edmico &#8211; defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\"><span>A vantagem mais importante do m\u00e9todo de armazenamento termoqu\u00edmico \u00e9 que a entalpia da rea\u00e7\u00e3o \u00e9 consideravelmente maior que o calor espec\u00edfico ou o calor da fus\u00e3o.\u00a0Engenharia T\u00e9rmica<\/span><\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Armazenamento termoqu\u00edmico<\/span><\/h2>\n<p><span>Uma das tr\u00eas\u00a0<\/span><span>abordagens\u00a0<\/span><span>poss\u00edveis\u00a0para\u00a0<strong>o armazenamento de energia t\u00e9rmica<\/strong>\u00a0\u00e9 usar\u00a0<strong>rea\u00e7\u00f5es termoqu\u00edmicas<\/strong>\u00a0revers\u00edveis\u00a0.\u00a0<\/span><span>A vantagem mais importante do\u00a0<\/span><span>m\u00e9todo de\u00a0<\/span><strong><span>armazenamento termoqu\u00edmico\u00a0<\/span><\/strong><span>\u00e9 que a\u00a0<\/span><a title=\"Entalpia de rea\u00e7\u00e3o qu\u00edmica\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/what-is-enthalpy\/enthalpy-of-chemical-reaction\/\"><span>entalpia da rea\u00e7\u00e3o<\/span><\/a><span>\u00a0\u00e9 consideravelmente maior que o calor espec\u00edfico ou o calor da fus\u00e3o.\u00a0Portanto, a densidade de armazenamento \u00e9 muito melhor.\u00a0<\/span><b><span>Nas rea\u00e7\u00f5es qu\u00edmicas\u00a0<\/span><\/b><span>, a energia \u00e9 armazenada nas\u00a0<\/span><b><span>liga\u00e7\u00f5es qu\u00edmicas\u00a0<\/span><\/b><span>entre os \u00e1tomos que comp\u00f5em as mol\u00e9culas.\u00a0<\/span><b><span>Armazenamento de energia<\/span><\/b><span>no n\u00edvel at\u00f4mico inclui energia associada aos estados orbitais dos el\u00e9trons.\u00a0Se uma rea\u00e7\u00e3o qu\u00edmica absorve ou libera energia, n\u00e3o h\u00e1 mudan\u00e7a geral na quantidade de energia durante a rea\u00e7\u00e3o.\u00a0Isso \u00e9 devido \u00e0\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/laws-of-conservation\/law-of-conservation-of-energy\/\"><b><span>lei de conserva\u00e7\u00e3o de energia<\/span><\/b><\/a><span>\u00a0, que afirma que:<\/span><\/p>\n<p><b><i><span>A energia n\u00e3o pode ser criada ou destru\u00edda\u00a0<\/span><\/i><\/b><i><span>.\u00a0<\/span><\/i><b><i><span>A energia pode mudar de forma durante uma rea\u00e7\u00e3o qu\u00edmica\u00a0<\/span><\/i><\/b><i><span>.<\/span><\/i><\/p>\n<p><span>Um exemplo de um sistema experimental de armazenamento baseado em energia de rea\u00e7\u00e3o qu\u00edmica \u00e9 a\u00a0<\/span><strong><span>tecnologia de hidrato de sal<\/span><\/strong><span>\u00a0.\u00a0O sistema \u00e9 especialmente vantajoso para\u00a0<\/span><strong><span>o armazenamento<\/span><\/strong><span>\u00a0sazonal\u00a0<strong>de energia t\u00e9rmica<\/strong>\u00a0.\u00a0O sistema utiliza a energia de rea\u00e7\u00e3o criada quando os sais s\u00e3o hidratados ou desidratados.\u00a0Ele funciona armazenando calor em um recipiente contendo solu\u00e7\u00e3o de hidr\u00f3xido de s\u00f3dio a 50% (NaOH).\u00a0O calor (por exemplo, usando um coletor solar) \u00e9 armazenado por evapora\u00e7\u00e3o da \u00e1gua em uma rea\u00e7\u00e3o endot\u00e9rmica.\u00a0Quando a \u00e1gua \u00e9 adicionada novamente, o calor \u00e9 liberado em uma rea\u00e7\u00e3o exot\u00e9rmica a 50 \u00b0 C.\u00a0Os sistemas atuais operam com 60% de efici\u00eancia.<\/span><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2>Armazenamento de energia t\u00e9rmica<\/h2>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/microscopic-energy-internal-energy.png\"><img loading=\"lazy\" class=\"alignright size-medium wp-image-16656 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/microscopic-energy-internal-energy-300x196.png\" alt=\"Energia microsc\u00f3pica - energia interna\" width=\"300\" height=\"196\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/microscopic-energy-internal-energy-300x196.png\" \/><\/a>Na\u00a0<a title=\"Termodin\u00e2mica\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/\">termodin\u00e2mica<\/a>\u00a0,\u00a0<strong>energia interna<\/strong>\u00a0(tamb\u00e9m chamada\u00a0<a href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-energia-interna-energia-termica-definicao\/\"><strong>de energia t\u00e9rmica<\/strong><\/a>\u00a0) \u00e9 definida como a energia associada a\u00a0<strong>formas microsc\u00f3picas de energia<\/strong>\u00a0.\u00a0\u00c9 uma\u00a0<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/extensive-and-intensive-properties\/\">quantidade extensa<\/a>\u00a0, depende do tamanho do sistema ou da quantidade de subst\u00e2ncia que ele cont\u00e9m.\u00a0A unidade SI de\u00a0<strong>energia interna<\/strong>\u00a0\u00e9 o\u00a0<a title=\"Joule (unidade J) - Unidade de Energia\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/joule-unit-j-energy-unit\/\"><strong>joule (J)<\/strong><\/a>\u00a0.\u00a0\u00c9 a energia contida no sistema, excluindo a energia cin\u00e9tica do movimento do sistema como um todo e a energia potencial do sistema.\u00a0<strong>As formas microsc\u00f3picas de energia<\/strong>\u00a0incluem aquelas devidas \u00e0\u00a0<strong>rota\u00e7\u00e3o<\/strong>\u00a0,\u00a0<strong>vibra\u00e7\u00e3o, transla\u00e7\u00e3o<\/strong>\u00a0e\u00a0<strong>intera\u00e7\u00f5es<\/strong>entre as mol\u00e9culas de uma subst\u00e2ncia.\u00a0Nenhuma dessas formas de energia pode ser medida ou avaliada diretamente, mas t\u00e9cnicas foram desenvolvidas para avaliar a mudan\u00e7a na soma total de todas essas formas microsc\u00f3picas de energia.<\/p>\n<p>Al\u00e9m disso, a energia \u00e9 armazenada nas liga\u00e7\u00f5es qu\u00edmicas entre os \u00e1tomos que comp\u00f5em as mol\u00e9culas.\u00a0Esse\u00a0<strong>armazenamento de energia<\/strong>\u00a0no n\u00edvel at\u00f4mico inclui energia associada a estados orbitais de el\u00e9trons, rota\u00e7\u00e3o nuclear e for\u00e7as de liga\u00e7\u00e3o no n\u00facleo.<\/p>\n<figure id=\"attachment_21117\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-21117\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Thermal-Energy-Storage-Solar-Power.jpg\"><img loading=\"lazy\" class=\"size-medium wp-image-21117 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Thermal-Energy-Storage-Solar-Power-300x187.jpg\" alt=\"Usina Solar PS10 na Espanha.  Fonte: wikipedia.org Licen\u00e7a: CC BY 2.0\" width=\"300\" height=\"187\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Thermal-Energy-Storage-Solar-Power-300x187.jpg\" \/><\/a><figcaption id=\"caption-attachment-21117\" class=\"wp-caption-text\">Usina Solar PS10 na Espanha.\u00a0Fonte: wikipedia.org Licen\u00e7a: CC BY 2.0<\/figcaption><\/figure>\n<p><strong>A energia t\u00e9rmica<\/strong>\u00a0tamb\u00e9m pode ser armazenada de maneira muito eficaz.\u00a0Atualmente, a situa\u00e7\u00e3o nos mercados de energia \u00e9 diferente.\u00a0O aumento dos pre\u00e7os das fontes convencionais de energia e a conscientiza\u00e7\u00e3o ambiental levaram a aumentar o uso de energias renov\u00e1veis \u200b\u200be a efici\u00eancia energ\u00e9tica.\u00a0<strong>O armazenamento de energia t\u00e9rmica<\/strong>\u00a0\u00e9 um componente essencial de uma usina para melhorar sua indisponibilidade, especialmente para concentrar usinas de energia solar (CSP).\u00a0<strong>O armazenamento de energia t\u00e9rmica (TES)<\/strong>\u00a0\u00e9 alcan\u00e7ado com tecnologias amplamente diferentes.\u00a0Existem tr\u00eas m\u00e9todos utilizados e ainda sendo investigados para armazenar energia t\u00e9rmica.<\/p>\n<ul>\n<li><strong>Armazenamento de calor sens\u00edvel (SHS)<\/strong><\/li>\n<li><strong>Armazenamento de calor latente (LHS)<\/strong><\/li>\n<li><strong>Armazenamento termoqu\u00edmico<\/strong><\/li>\n<\/ul>\n<\/div>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Este artigo \u00e9 baseado na tradu\u00e7\u00e3o autom\u00e1tica do artigo original em ingl\u00eas. Para mais informa\u00e7\u00f5es, consulte o artigo em ingl\u00eas. Voc\u00ea pode nos ajudar. Se voc\u00ea deseja corrigir a tradu\u00e7\u00e3o, envie-a para: translations@nuclear-power.com ou preencha o formul\u00e1rio de tradu\u00e7\u00e3o on-line. Agradecemos sua ajuda, atualizaremos a tradu\u00e7\u00e3o o mais r\u00e1pido poss\u00edvel. Obrigado.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>A vantagem mais importante do m\u00e9todo de armazenamento termoqu\u00edmico \u00e9 que a entalpia da rea\u00e7\u00e3o \u00e9 consideravelmente maior que o calor espec\u00edfico ou o calor da fus\u00e3o.\u00a0Engenharia T\u00e9rmica Armazenamento termoqu\u00edmico Uma das tr\u00eas\u00a0abordagens\u00a0poss\u00edveis\u00a0para\u00a0o armazenamento de energia t\u00e9rmica\u00a0\u00e9 usar\u00a0rea\u00e7\u00f5es termoqu\u00edmicas\u00a0revers\u00edveis\u00a0.\u00a0A vantagem mais importante do\u00a0m\u00e9todo de\u00a0armazenamento termoqu\u00edmico\u00a0\u00e9 que a\u00a0entalpia da rea\u00e7\u00e3o\u00a0\u00e9 consideravelmente maior que o calor espec\u00edfico &#8230; <a title=\"O que \u00e9 armazenamento termoqu\u00edmico &#8211; defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-armazenamento-termoquimico-definicao\/\" aria-label=\"More on O que \u00e9 armazenamento termoqu\u00edmico &#8211; defini\u00e7\u00e3o\">Ler mais<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[14],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O que \u00e9 armazenamento termoqu\u00edmico - defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"A vantagem mais importante do m\u00e9todo de armazenamento termoqu\u00edmico \u00e9 que a entalpia da rea\u00e7\u00e3o \u00e9 consideravelmente maior que o calor espec\u00edfico ou o calor da fus\u00e3o. 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