{"id":47823,"date":"2019-11-06T22:14:53","date_gmt":"2019-11-06T21:14:53","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/"},"modified":"2020-01-25T09:35:12","modified_gmt":"2020-01-25T08:35:12","slug":"o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/","title":{"rendered":"O que \u00e9 turbina de extra\u00e7\u00e3o &#8211; Turbina com extra\u00e7\u00e3o a vapor &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">As turbinas de extra\u00e7\u00e3o s\u00e3o comuns em todas as aplica\u00e7\u00f5es.\u00a0Em algumas aplica\u00e7\u00f5es, quando necess\u00e1rio, o vapor pode ser extra\u00eddo da turbina antes que o vapor flua atrav\u00e9s do \u00faltimo est\u00e1gio, denominado turbina de extra\u00e7\u00e3o.\u00a0Engenharia T\u00e9rmica<\/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>Classifica\u00e7\u00e3o de turbinas &#8211; condi\u00e7\u00f5es de suprimento e exaust\u00e3o de vapor<\/h2>\n<p><strong>As turbinas a vapor<\/strong>\u00a0podem ser classificadas em diferentes categorias, dependendo da finalidade e\u00a0<strong>das press\u00f5es de trabalho<\/strong>\u00a0.\u00a0O uso industrial de uma turbina influencia as condi\u00e7\u00f5es iniciais e finais do vapor.\u00a0Para qualquer turbina a vapor operar, deve existir uma diferen\u00e7a de press\u00e3o entre o suprimento de vapor e o escapamento.<\/p>\n<p>Esta classifica\u00e7\u00e3o inclui:<\/p>\n<ul>\n<li><a title=\"Turbina a vapor de condensa\u00e7\u00e3o\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/turbine-generator-power-conversion-system\/what-is-steam-turbine-description-and-characteristics\/condensing-steam-turbine\/\"><strong>Turbina a vapor de condensa\u00e7\u00e3o<\/strong><\/a>\u00a0,<\/li>\n<li><a title=\"Turbina a vapor de contrapress\u00e3o - vapor de processo\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/turbine-generator-power-conversion-system\/what-is-steam-turbine-description-and-characteristics\/back-pressure-steam-turbine-process-steam\/\"><strong>Turbina a vapor de contrapress\u00e3o<\/strong><\/a>\u00a0,<\/li>\n<li><a title=\"Reaquecer a turbina a vapor\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/turbine-generator-power-conversion-system\/what-is-steam-turbine-description-and-characteristics\/reheat-steam-turbine\/\"><strong>Reaquecer a turbina a vapor<\/strong><\/a>\u00a0,<\/li>\n<li><a title=\"Turbina de Extra\u00e7\u00e3o - Turbina com Extra\u00e7\u00e3o a Vapor\" href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/turbine-generator-power-conversion-system\/what-is-steam-turbine-description-and-characteristics\/extraction-turbine-turbine-with-steam-extraction\/\"><strong><b>Turbina com Extra\u00e7\u00e3o a Vapor<\/b><\/strong><\/a><\/li>\n<\/ul>\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>Turbina de Extra\u00e7\u00e3o &#8211; Turbina com Extra\u00e7\u00e3o a Vapor<\/h2>\n<p><strong>As turbinas do tipo extra\u00e7\u00e3o<\/strong>\u00a0s\u00e3o comuns em todas as aplica\u00e7\u00f5es.\u00a0Em algumas aplica\u00e7\u00f5es, quando necess\u00e1rio, o vapor pode ser extra\u00eddo da turbina antes que o vapor flua atrav\u00e9s do \u00faltimo est\u00e1gio, denominado\u00a0<strong>turbina de extra\u00e7\u00e3o<\/strong>\u00a0.\u00a0Como nas turbinas de contrapress\u00e3o, o vapor extra\u00eddo pode ser usado para muitos processos industriais ou\u00a0<strong>para melhorar a efici\u00eancia do ciclo termodin\u00e2mico<\/strong>\u00a0.\u00a0O segundo caso \u00e9 geralmente conhecido como\u00a0<a title=\"Regenera\u00e7\u00e3o de Calor - Ciclo Rankine\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-cycles\/rankine-cycle-steam-turbine-cycle\/heat-regeneration-rankine-cycle\/\"><strong>regenera\u00e7\u00e3o de calor<\/strong><\/a>\u00a0.<\/p>\n<p>Quase todas as grandes turbinas a vapor usam a regenera\u00e7\u00e3o de calor (ou seja, s\u00e3o turbinas de extra\u00e7\u00e3o), pois reduz a\u00a0<strong>quantidade de combust\u00edvel<\/strong>\u00a0que deve ser adicionada \u00e0 caldeira.\u00a0A redu\u00e7\u00e3o no calor adicionado pode ser feita transferindo o calor (vapor parcialmente expandido) de certas se\u00e7\u00f5es da turbina a vapor, que normalmente est\u00e1 bem acima da temperatura ambiente, para a \u00e1gua de alimenta\u00e7\u00e3o.\u00a0Observe que a maior parte da energia contida no vapor est\u00e1 na forma de\u00a0<a title=\"Calor latente de vaporiza\u00e7\u00e3o\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/first-law-of-thermodynamics\/latent-heat-of-vaporization\/\">calor latente de vaporiza\u00e7\u00e3o<\/a>\u00a0.\u00a0Os fluxos de extra\u00e7\u00e3o podem ser controlados com uma v\u00e1lvula ou deixados sem controle.<\/p>\n<p>Por exemplo, a maioria das usinas nucleares opera um gerador de turbina de eixo \u00fanico que consiste em uma\u00a0<strong>turbina HP de<\/strong>\u00a0v\u00e1rios est\u00e1gios\u00a0com\u00a0<strong>3 ou 4 linhas de extra\u00e7\u00e3o autorregul\u00e1veis<\/strong>\u00a0e tr\u00eas\u00a0<strong>turbinas LP de<\/strong>\u00a0v\u00e1rios est\u00e1gios paralelos\u00a0com\u00a0<strong>3 ou 4 extra\u00e7\u00f5es autorregul\u00e1veis linhas<\/strong>\u00a0.<\/p>\n<p>Os\u00a0<strong>aquecedores de \u00e1gua de alimenta\u00e7\u00e3o de alta press\u00e3o<\/strong>\u00a0s\u00e3o geralmente aquecidos por\u00a0<strong>vapor de extra\u00e7\u00e3o<\/strong>\u00a0da turbina de alta press\u00e3o, HP, enquanto os\u00a0<strong>aquecedores de \u00e1gua de alimenta\u00e7\u00e3o de baixa press\u00e3o<\/strong>\u00a0s\u00e3o geralmente aquecidos por\u00a0<strong>vapor de extra\u00e7\u00e3o<\/strong>\u00a0da turbina de baixa press\u00e3o, LP.\u00a0Ambos s\u00e3o geralmente auto-regul\u00e1veis.\u00a0Isso significa que quanto maior o fluxo de \u00e1gua de alimenta\u00e7\u00e3o, maior a taxa de absor\u00e7\u00e3o de calor do vapor e maior o fluxo de vapor de extra\u00e7\u00e3o.<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Steam-Turbine-scheme-min.png\"><img loading=\"lazy\" class=\"size-large wp-image-17846 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Steam-Turbine-scheme-min-1024x529.png\" alt=\"Turbina a vapor de 3000MWth PWR t\u00edpico\" width=\"669\" height=\"346\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Steam-Turbine-scheme-min-1024x529.png\" \/><\/a><\/p>\n<p>Esquema de uma turbina a vapor de um t\u00edpico 3000MWth PWR.<\/p>\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","protected":false},"excerpt":{"rendered":"<p>As turbinas de extra\u00e7\u00e3o s\u00e3o comuns em todas as aplica\u00e7\u00f5es.\u00a0Em algumas aplica\u00e7\u00f5es, quando necess\u00e1rio, o vapor pode ser extra\u00eddo da turbina antes que o vapor flua atrav\u00e9s do \u00faltimo est\u00e1gio, denominado turbina de extra\u00e7\u00e3o.\u00a0Engenharia T\u00e9rmica Classifica\u00e7\u00e3o de turbinas &#8211; condi\u00e7\u00f5es de suprimento e exaust\u00e3o de vapor As turbinas a vapor\u00a0podem ser classificadas em diferentes categorias, &#8230; <a title=\"O que \u00e9 turbina de extra\u00e7\u00e3o &#8211; Turbina com extra\u00e7\u00e3o a vapor &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/\" aria-label=\"More on O que \u00e9 turbina de extra\u00e7\u00e3o &#8211; Turbina com extra\u00e7\u00e3o a vapor &#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 turbina de extra\u00e7\u00e3o - Turbina com extra\u00e7\u00e3o a vapor - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"As turbinas de extra\u00e7\u00e3o s\u00e3o comuns em todas as aplica\u00e7\u00f5es. Em algumas aplica\u00e7\u00f5es, quando necess\u00e1rio, o vapor pode ser extra\u00eddo da turbina antes que o vapor flua atrav\u00e9s do \u00faltimo est\u00e1gio, denominado turbina de extra\u00e7\u00e3o. Engenharia T\u00e9rmica\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O que \u00e9 turbina de extra\u00e7\u00e3o - Turbina com extra\u00e7\u00e3o a vapor - Defini\u00e7\u00e3o\" \/>\n<meta property=\"og:description\" content=\"As turbinas de extra\u00e7\u00e3o s\u00e3o comuns em todas as aplica\u00e7\u00f5es. Em algumas aplica\u00e7\u00f5es, quando necess\u00e1rio, o vapor pode ser extra\u00eddo da turbina antes que o vapor flua atrav\u00e9s do \u00faltimo est\u00e1gio, denominado turbina de extra\u00e7\u00e3o. Engenharia T\u00e9rmica\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2019-11-06T21:14:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-01-25T08:35:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Steam-Turbine-scheme-min-1024x529.png\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"2 minutos\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/\",\"name\":\"Thermal Engineering\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.thermal-engineering.org\/fr\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/#primaryimage\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Steam-Turbine-scheme-min-1024x529.png\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/\",\"name\":\"O que \\u00e9 turbina de extra\\u00e7\\u00e3o - Turbina com extra\\u00e7\\u00e3o a vapor - Defini\\u00e7\\u00e3o\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/#primaryimage\"},\"datePublished\":\"2019-11-06T21:14:53+00:00\",\"dateModified\":\"2020-01-25T08:35:12+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"As turbinas de extra\\u00e7\\u00e3o s\\u00e3o comuns em todas as aplica\\u00e7\\u00f5es. Em algumas aplica\\u00e7\\u00f5es, quando necess\\u00e1rio, o vapor pode ser extra\\u00eddo da turbina antes que o vapor flua atrav\\u00e9s do \\u00faltimo est\\u00e1gio, denominado turbina de extra\\u00e7\\u00e3o. Engenharia T\\u00e9rmica\",\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-turbina-de-extracao-turbina-com-extracao-a-vapor-definicao\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts\/47823"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/comments?post=47823"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts\/47823\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/media?parent=47823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/categories?post=47823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/tags?post=47823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}