{"id":47184,"date":"2019-11-03T13:19:57","date_gmt":"2019-11-03T12:19:57","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-o-trocador-de-calor-de-tubos-e-cascas-definicao\/"},"modified":"2020-01-22T14:54:12","modified_gmt":"2020-01-22T13:54:12","slug":"o-que-e-o-trocador-de-calor-de-tubos-e-cascas-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-trocador-de-calor-de-tubos-e-cascas-definicao\/","title":{"rendered":"O que \u00e9 o trocador de calor de tubos e cascas &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Os trocadores de calor de casco e tubo s\u00e3o provavelmente a configura\u00e7\u00e3o b\u00e1sica de trocador de calor mais difundida e comumente usada na ind\u00fastria.\u00a0Permutador de calor de conchas e tubos<\/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>Permutador de calor de conchas e tubos<\/h2>\n<p><strong>Permutador de calor de casco e tubo<\/strong><\/p>\n<figure id=\"attachment_407\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-407\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/STEAM_GENERATOR_NUCLEAR.gif\"><img loading=\"lazy\" class=\"size-full wp-image-407 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/STEAM_GENERATOR_NUCLEAR.gif\" alt=\"Gerador de vapor - vertical\" width=\"266\" height=\"357\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/STEAM_GENERATOR_NUCLEAR.gif\" \/><\/a><figcaption id=\"caption-attachment-407\" class=\"wp-caption-text\">Gerador de vapor &#8211; vertical<\/figcaption><\/figure>\n<p><strong>Permutadores de calor de carca\u00e7a e tubo<\/strong>em suas v\u00e1rias modifica\u00e7\u00f5es de constru\u00e7\u00e3o, \u00e9 provavelmente a configura\u00e7\u00e3o b\u00e1sica de trocador de calor mais difundida e comumente usada na ind\u00fastria.\u00a0Os trocadores de calor de casco e tubo s\u00e3o classificados ainda de acordo com o n\u00famero de passes de casco e tubo envolvidos.\u00a0Os trocadores de calor de cascas e tubos s\u00e3o normalmente usados \u200b\u200bpara aplica\u00e7\u00f5es de alta press\u00e3o (com press\u00f5es maiores que 30 bar e temperaturas maiores que 260 \u00b0 C).\u00a0Isso ocorre porque os trocadores de calor de carca\u00e7a e tubo podem suportar altas press\u00f5es devido \u00e0 sua forma.\u00a0Nesse tipo de trocador de calor, v\u00e1rios tubos de pequeno di\u00e2metro s\u00e3o montados entre duas placas de tubo e o fluido prim\u00e1rio flui atrav\u00e9s desses tubos.\u00a0O feixe de tubos \u00e9 colocado dentro de uma concha e o fluido secund\u00e1rio flui atrav\u00e9s da concha e sobre a superf\u00edcie dos tubos.\u00a0Na engenharia nuclear,<strong>\u00e1gua de alimenta\u00e7\u00e3o para vapor a<\/strong>\u00a0partir do calor produzido no\u00a0<a href=\"https:\/\/www.reactor-physics.com\/what-is-reactor-core-definition\/\">n\u00facleo de<\/a>\u00a0um\u00a0<a href=\"https:\/\/www.reactor-physics.com\/what-is-reactor-core-definition\/\">reator nuclear<\/a>\u00a0.\u00a0Para aumentar a quantidade de calor transferido e a energia gerada, a\u00a0<strong>superf\u00edcie de<\/strong>\u00a0troca de calor\u00a0deve ser maximizada.\u00a0Isso \u00e9 obtido usando\u00a0<strong>tubos<\/strong> . Cada gerador de vapor pode conter entre 3.000 e 16.000 tubos, cada um com aproximadamente 19 mm de di\u00e2metro.<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-60 lgc-tablet-grid-60 lgc-mobile-grid-100 lgc-equal-heights  lgc-first\">\n<div class=\"inside-grid-column\">\n<h2><span>Trocador de Calor &#8211; Dire\u00e7\u00e3o do Fluxo<\/span><\/h2>\n<p><strong><span>Os trocadores de calor<\/span><\/strong><span>\u00a0s\u00e3o normalmente classificados de acordo com a disposi\u00e7\u00e3o do fluxo e o tipo de constru\u00e7\u00e3o.\u00a0O\u00a0<\/span><strong><span>trocador de calor<\/span><\/strong><span>\u00a0mais simples\u00a0\u00e9 aquele para o qual os fluidos quente e frio se movem na mesma dire\u00e7\u00e3o ou em dire\u00e7\u00f5es opostas.\u00a0Este trocador de calor consiste em dois tubos conc\u00eantricos de di\u00e2metros diferentes.<\/span><\/p>\n<ul>\n<li><strong><span>disposi\u00e7\u00e3o de fluxo paralelo<\/span><\/strong><span>\u00a0.\u00a0Na disposi\u00e7\u00e3o de fluxo paralelo, os fluidos quente e frio entram na mesma extremidade, fluem na mesma dire\u00e7\u00e3o e saem na mesma extremidade.<\/span><\/li>\n<li><strong><span>arranjo de contra-fluxo<\/span><\/strong><span>\u00a0.\u00a0No arranjo de contra-fluxo, os fluidos entram em extremos opostos, fluem em dire\u00e7\u00f5es opostas e saem em extremos opostos.<\/span><\/li>\n<\/ul>\n<p><span>A figura representa as dire\u00e7\u00f5es do fluxo de fluido nos trocadores paralelos e contra-fluxo.\u00a0Sob condi\u00e7\u00f5es compar\u00e1veis, mais calor \u00e9 transferido em um arranjo de contra-fluxo do que em um trocador de calor de fluxo paralelo.\u00a0Os perfis de temperatura dos dois trocadores de calor indicam duas grandes desvantagens no projeto de fluxo paralelo.<\/span><\/p>\n<ul>\n<li><span>A grande diferen\u00e7a de temperatura nas extremidades causa grandes tens\u00f5es t\u00e9rmicas.<\/span><\/li>\n<li><span>A temperatura do fluido frio que sai do trocador de calor nunca excede a temperatura mais baixa do fluido quente.<\/span><\/li>\n<\/ul>\n<p><span>O design de um trocador de calor de fluxo paralelo \u00e9 vantajoso quando \u00e9 necess\u00e1rio levar dois fluidos quase \u00e0 mesma temperatura.<\/span><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-40 lgc-tablet-grid-40 lgc-mobile-grid-100 lgc-equal-heights  lgc-last\">\n<div class=\"inside-grid-column\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-parallel-flow.png\"><img loading=\"lazy\" class=\"aligncenter size-medium wp-image-21031 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-parallel-flow-219x300.png\" alt=\"trocador de calor - fluxo paralelo\" width=\"219\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-parallel-flow-219x300.png\" \/><\/a><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-counter-flow.png\"><img loading=\"lazy\" class=\"aligncenter size-medium wp-image-21030 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-counter-flow-212x300.png\" alt=\"trocador de calor - contra-fluxo\" width=\"212\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-counter-flow-212x300.png\" \/><\/a><\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/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>Os trocadores de calor de casco e tubo s\u00e3o provavelmente a configura\u00e7\u00e3o b\u00e1sica de trocador de calor mais difundida e comumente usada na ind\u00fastria.\u00a0Permutador de calor de conchas e tubos Permutador de calor de conchas e tubos Permutador de calor de casco e tubo Gerador de vapor &#8211; vertical Permutadores de calor de carca\u00e7a e &#8230; <a title=\"O que \u00e9 o trocador de calor de tubos e cascas &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-trocador-de-calor-de-tubos-e-cascas-definicao\/\" aria-label=\"More on O que \u00e9 o trocador de calor de tubos e cascas &#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 o trocador de calor de tubos e cascas - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Os trocadores de calor de casco e tubo s\u00e3o provavelmente a configura\u00e7\u00e3o b\u00e1sica de trocador de calor mais difundida e comumente usada na ind\u00fastria. 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