{"id":47979,"date":"2019-11-07T14:10:12","date_gmt":"2019-11-07T13:10:12","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-o-ciclo-ericsson-teoria-e-eficiencia-definicao\/"},"modified":"2019-11-07T14:10:12","modified_gmt":"2019-11-07T13:10:12","slug":"o-que-e-o-ciclo-ericsson-teoria-e-eficiencia-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-ciclo-ericsson-teoria-e-eficiencia-definicao\/","title":{"rendered":"O que \u00e9 o Ciclo Ericsson &#8211; Teoria e Efici\u00eancia &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\"><span>Primeiro e Segundo Ciclo Ericsson &#8211; Teoria e Efici\u00eancia.\u00a0O ciclo da Ericsson \u00e9 um ciclo termodin\u00e2mico com o nome de um inventor sueco-americano John Ericsson.\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>Ciclo Ericsson<\/span><\/h2>\n<figure id=\"attachment_17739\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-17739\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Ericsson-Cycle-Ts-Diagram.png\"><img loading=\"lazy\" class=\"size-medium wp-image-17739 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Ericsson-Cycle-Ts-Diagram-300x244.png\" alt=\"Ciclo Ericsson - Diagrama Ts\" width=\"300\" height=\"244\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Ericsson-Cycle-Ts-Diagram-300x244.png\" \/><\/a><figcaption id=\"caption-attachment-17739\" class=\"wp-caption-text\"><span>Ciclo Ericsson &#8211; Diagrama Ts<\/span><\/figcaption><\/figure>\n<p><span>O\u00a0<\/span><strong><span>ciclo da Ericsson<\/span><\/strong><span>\u00a0\u00e9 nomeado em homenagem ao inventor sueco-americano\u00a0<\/span><strong><span>John Ericsson<\/span><\/strong><span>\u00a0, que projetou e construiu muitos motores t\u00e9rmicos exclusivos com base em v\u00e1rios ciclos termodin\u00e2micos.\u00a0Ele \u00e9 creditado por ter inventado dois ciclos \u00fanicos de motores t\u00e9rmicos e pelo desenvolvimento de motores pr\u00e1ticos com base nesses ciclos.<\/span><\/p>\n<p><span>Seu primeiro ciclo termodin\u00e2mico \u201c\u00a0<\/span><strong><span>o primeiro ciclo da Ericsson<\/span><\/strong><span>\u00a0\u201d agora \u00e9 chamado de \u201c\u00a0<\/span><a title=\"Ciclo de Brayton - Motor de turbina a g\u00e1s\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-ciclo-de-brayton-motor-de-turbina-a-gas-definicao\/\"><span>ciclo de Brayton<\/span><\/a><span>\u00a0\u201d; na verdade, \u00e9 o ciclo de Brayton fechado, que \u00e9 comumente aplicado aos modernos motores de turbina a g\u00e1s de ciclo fechado.<\/span><\/p>\n<p><span>O\u00a0<\/span><strong><span>segundo ciclo da Ericsson<\/span><\/strong><span>\u00a0\u00e9 o que agora \u00e9 chamado de ciclo da Ericsson.\u00a0O segundo ciclo da Ericsson \u00e9 semelhante ao ciclo de Brayton, mas usa calor externo e incorpora o\u00a0<\/span><strong><span>uso m\u00faltiplo<\/span><\/strong><span>\u00a0de um\u00a0<\/span><a title=\"Ciclo de Brayton com reaquecimento, regenera\u00e7\u00e3o e inter-resfriamento\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-cycles\/brayton-cycle-gas-turbine-engine\/brayton-cycle-with-reheat-regeneration-and-intercooling\/\"><strong><span>inter<\/span><\/strong><\/a><span>\u00a0&#8211;\u00a0<\/span><a title=\"Ciclo de Brayton com reaquecimento, regenera\u00e7\u00e3o e inter-resfriamento\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-cycles\/brayton-cycle-gas-turbine-engine\/brayton-cycle-with-reheat-regeneration-and-intercooling\/\"><strong><span>resfriamento<\/span><\/strong><\/a><span>\u00a0e\u00a0<a title=\"Ciclo de Brayton com reaquecimento, regenera\u00e7\u00e3o e inter-resfriamento\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-cycles\/brayton-cycle-gas-turbine-engine\/brayton-cycle-with-reheat-regeneration-and-intercooling\/\"><strong>reaquecimento<\/strong><\/a>\u00a0.\u00a0De fato, \u00e9 como um ciclo de Brayton com um n\u00famero infinito de est\u00e1gios de reaquecimento e intercooler no ciclo.\u00a0Comparado ao ciclo de Brayton, que usa\u00a0<\/span><strong><span>compress\u00e3o<\/span><\/strong><span>\u00a0e\u00a0<\/span><strong><span>expans\u00e3o\u00a0<\/span><\/strong><span><strong>adiab\u00e1tica<\/strong>\u00a0, um ciclo Ericsson ideal consiste em\u00a0processos de\u00a0<strong>expans\u00e3o<\/strong>\u00a0e\u00a0<\/span><a title=\"Processo isot\u00e9rmico\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-processo-isotermico-definicao\/\"><strong><span>compress\u00e3o isot\u00e9rmicos<\/span><\/strong>\u00a0<\/a><span>, combinados com a regenera\u00e7\u00e3o de calor isob\u00e1rico entre eles.\u00a0A aplica\u00e7\u00e3o de inter-resfriamento, regenera\u00e7\u00e3o de calor e combust\u00e3o sequencial aumenta significativamente<\/span><strong><span>efici\u00eancia t\u00e9rmica<\/span><\/strong><span>\u00a0de uma turbina, de fato, a efici\u00eancia t\u00e9rmica do ciclo ideal da Ericsson \u00e9 igual \u00e0\u00a0<\/span><a title=\"Efici\u00eancia de Carnot - Efici\u00eancia do mecanismo de calor de Carnot\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/second-law-of-thermodynamics\/carnot-efficiency-efficiency-of-carnot-heat-engine\/\"><span>efici\u00eancia de Carnot<\/span><\/a><span>\u00a0.<\/span><\/p>\n<p><span>Assume-se (no caso ideal) que cada permutador de calor regressar o fluido de trabalho \u00e0 temperatura ambiente\u00a0<\/span><strong><span>T\u00a0<\/span><sub><span>1<\/span><\/sub><\/strong><span>\u00a0e cada um reaquecedor aquece o fluido de trabalho \u00e0 temperatura de\u00a0<\/span><strong><span>T\u00a0<\/span><sub><span>3<\/span><\/sub><\/strong><span>\u00a0.\u00a0O regenerador \u00e9 100% eficiente e permite que a entrada de calor do processo\u00a0<\/span><strong><span>2 \u2192 3<\/span><\/strong><span>\u00a0seja obtida do calor rejeitado no processo\u00a0<\/span><strong><span>4 \u2192 1<\/span><\/strong><span>\u00a0.\u00a0Como n\u00e3o h\u00e1 necessidade de transfer\u00eancia de calor (Q\u00a0<\/span><sub><span>add<\/span><\/sub><span>\u00a0) no processo 2 \u2192 3, todo o calor adicionado externamente ocorreria nos reaquecedores e todo o calor rejeitado para o ambiente ocorreria nos intercoolers.\u00a0Como pode ser visto na figura, nesse caso todo o calor adicionado ocorreria quando o fluido de trabalho estivesse na\u00a0<\/span><strong><span>temperatura mais alta<\/span><\/strong><span>\u00a0, T\u00a0<\/span><sub><span>3<\/span><\/sub><span>E todo o calor rejeitado teria lugar quando o fluido de trabalho est\u00e1 no seu\u00a0<\/span><strong><span>menor temperatura<\/span><\/strong><span>\u00a0, T\u00a0<\/span><sub><span>1<\/span><\/sub><span>\u00a0.\u00a0Como se presume que as irreversibilidades est\u00e3o ausentes e todo o calor \u00e9 fornecido e rejeitado\u00a0<\/span><strong><span>isot\u00e9rmica<\/span><\/strong><span>\u00a0, a efici\u00eancia t\u00e9rmica de um ciclo Ericsson ideal pode ser calculada a partir destas temperaturas:<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/carnot-efficiency-equation.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-16897 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/carnot-efficiency-equation.png\" alt=\"F\u00f3rmula de Carnot Efici\u00eancia\" width=\"369\" height=\"91\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/carnot-efficiency-equation.png\" \/><\/a><\/p>\n<p><span>Onde:<\/span><\/p>\n<ul>\n<li><strong><em><span>\u03b7\u00a0<\/span><sub><span>Carnot<\/span><\/sub><\/em>\u00a0<\/strong><span>\u00a0\u00e9 a efici\u00eancia do ciclo de Carnot, ie \u00e9 a propor\u00e7\u00e3o<\/span><strong><span>\u00a0= W \/ Q\u00a0<\/span><\/strong><strong><sub><span>H<\/span><\/sub><\/strong><span>\u00a0do trabalho realizado pelo motor com a energia de calor que entra no sistema a partir do reservat\u00f3rio quente.<\/span><\/li>\n<li><em><strong><span>T\u00a0<\/span><\/strong><strong><sub><span>C<\/span><\/sub><\/strong><\/em><span>\u00a0\u00e9 a temperatura absoluta (Kelvins) do reservat\u00f3rio frio,<\/span><\/li>\n<li><em><strong><span>T\u00a0<\/span><sub><span>H<\/span><\/sub><\/strong><\/em><span>\u00a0\u00e9 a temperatura absoluta (Kelvin) do reservat\u00f3rio quente.<\/span><\/li>\n<\/ul>\n<p><span>Embora os processos termodin\u00e2micas do ciclo Ericsson diferem daqueles do ciclo de Carnot, ambos os ciclos de ter o mesmo valor de efici\u00eancia t\u00e9rmica quando operando entre as temperaturas\u00a0<\/span><em><span>T\u00a0<\/span><sub><span>H<\/span><\/sub><\/em><span>\u00a0e\u00a0<\/span><em><span>T\u00a0<\/span><sub><span>C<\/span><\/sub><\/em><span>\u00a0.<\/span><\/p>\n<\/div>\n<\/div>\n<div class=\"inside-grid-column\"><\/div>\n<div><\/div>\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>Primeiro e Segundo Ciclo Ericsson &#8211; Teoria e Efici\u00eancia.\u00a0O ciclo da Ericsson \u00e9 um ciclo termodin\u00e2mico com o nome de um inventor sueco-americano John Ericsson.\u00a0Engenharia T\u00e9rmica Ciclo Ericsson Ciclo Ericsson &#8211; Diagrama Ts O\u00a0ciclo da Ericsson\u00a0\u00e9 nomeado em homenagem ao inventor sueco-americano\u00a0John Ericsson\u00a0, que projetou e construiu muitos motores t\u00e9rmicos exclusivos com base em v\u00e1rios &#8230; <a title=\"O que \u00e9 o Ciclo Ericsson &#8211; Teoria e Efici\u00eancia &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-ciclo-ericsson-teoria-e-eficiencia-definicao\/\" aria-label=\"More on O que \u00e9 o Ciclo Ericsson &#8211; Teoria e Efici\u00eancia &#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 Ciclo Ericsson - Teoria e Efici\u00eancia - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Primeiro e Segundo Ciclo Ericsson - Teoria e Efici\u00eancia. 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