{"id":48833,"date":"2019-11-12T09:24:43","date_gmt":"2019-11-12T08:24:43","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-saturacao-ponto-de-ebulicao-definicao\/"},"modified":"2020-01-30T13:32:27","modified_gmt":"2020-01-30T12:32:27","slug":"o-que-e-saturacao-ponto-de-ebulicao-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-saturacao-ponto-de-ebulicao-definicao\/","title":{"rendered":"O que \u00e9 satura\u00e7\u00e3o &#8211; ponto de ebuli\u00e7\u00e3o &#8211; defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Na termodin\u00e2mica, o termo satura\u00e7\u00e3o define uma condi\u00e7\u00e3o na qual uma mistura de vapor e l\u00edquido pode existir juntos.\u00a0Temperatura de satura\u00e7\u00e3o ou ponto de ebuli\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>Satura\u00e7\u00e3o<\/h2>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/dry-steam-saturated-vapor-min.png\"><img loading=\"lazy\" class=\"alignright size-medium wp-image-16092 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/dry-steam-saturated-vapor-min-300x256.png\" alt=\"vapor seco-vapor saturado-min\" width=\"300\" height=\"256\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/dry-steam-saturated-vapor-min-300x256.png\" \/><\/a>Na termodin\u00e2mica, o termo\u00a0<strong>satura\u00e7\u00e3o<\/strong>\u00a0define uma condi\u00e7\u00e3o na qual uma mistura de vapor e l\u00edquido pode existir juntos a uma dada temperatura e press\u00e3o.\u00a0A temperatura na qual a\u00a0<strong>vaporiza\u00e7\u00e3o<\/strong>\u00a0(ebuli\u00e7\u00e3o) come\u00e7a a ocorrer para uma dada press\u00e3o \u00e9 chamada de\u00a0<strong>temperatura de satura\u00e7\u00e3o<\/strong>\u00a0ou\u00a0<strong>ponto de ebuli\u00e7\u00e3o<\/strong>\u00a0.\u00a0A press\u00e3o na qual a vaporiza\u00e7\u00e3o (fervendo) come\u00e7a a ocorrer para uma dada temperatura \u00e9 chamada press\u00e3o de satura\u00e7\u00e3o.<\/p>\n<p>Quando a qualidade do vapor \u00e9 igual a 0, \u00e9 chamado de\u00a0<a title=\"L\u00edquido saturado e sub-resfriado\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-steam-what-is-steam\/saturated-and-subcooled-liquid\/\"><strong>estado l\u00edquido saturado<\/strong><\/a>\u00a0(monof\u00e1sico).\u00a0Por outro lado, quando a qualidade do vapor \u00e9 igual a 1, \u00e9 chamado\u00a0<a title=\"Vapor seco\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-steam-what-is-steam\/dry-steam\/\"><strong>estado de vapor saturado<\/strong><\/a>\u00a0ou\u00a0<a title=\"Vapor seco\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-steam-what-is-steam\/dry-steam\/\"><strong>vapor seco<\/strong><\/a>\u00a0(monof\u00e1sico).\u00a0Entre esses dois estados, falamos sobre\u00a0<strong>mistura l\u00edquido-vapor<\/strong>\u00a0ou\u00a0<a title=\"Vapor Molhado\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-steam-what-is-steam\/wet-steam\/\"><strong>vapor \u00famido<\/strong><\/a>\u00a0(mistura bif\u00e1sica).\u00a0A press\u00e3o constante, uma adi\u00e7\u00e3o de energia n\u00e3o altera a temperatura da mistura, mas a\u00a0<a title=\"Qualidade de Vapor - Fra\u00e7\u00e3o de Secura\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-steam-what-is-steam\/vapor-quality-dryness-fraction\/\"><strong>qualidade<\/strong><\/a>\u00a0do\u00a0<a title=\"Qualidade de Vapor - Fra\u00e7\u00e3o de Secura\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-steam-what-is-steam\/vapor-quality-dryness-fraction\/\"><strong>vapor<\/strong><\/a> e o volume espec\u00edfico mudam.<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\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\"><span>Os par\u00e2metros em que ocorre a satura\u00e7\u00e3o da \u00e1gua s\u00e3o tabulados nas chamadas &#8221;\u00a0<\/span><strong><span>Tabelas de Vapor<\/span><\/strong><span>\u00a0&#8220;.\u00a0Nessas tabelas, as propriedades b\u00e1sicas e principais, como press\u00e3o, temperatura, entalpia, densidade e calor espec\u00edfico, s\u00e3o tabuladas ao longo da curva de satura\u00e7\u00e3o vapor-l\u00edquido em fun\u00e7\u00e3o da temperatura e da press\u00e3o.<\/span><span>Veja tamb\u00e9m:\u00a0<\/span><a title=\"Tabelas de Vapor - Propriedades Espec\u00edficas da \u00c1gua e Vapor\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/steam-tables\/\"><span>Tabelas Steam<\/span><\/a><\/p>\n<p><span>Por exemplo: No\u00a0<\/span><a title=\"Pressurizador\" href=\"https:\/\/www.nuclear-power.com\/pressurizer\/\"><span>pressurizador<\/span><\/a><span>\u00a0de\u00a0<\/span><a title=\"PWR - Reator de \u00e1gua pressurizada\" href=\"https:\/\/www.nuclear-power.com\/pwr-pressurized-water-reactor\/\"><span>reatores de \u00e1gua pressurizada,<\/span><\/a><span>\u00a0a temperatura de satura\u00e7\u00e3o \u00e9 de cerca de 350 \u00b0 C, mas isso corresponde \u00e0 press\u00e3o de 16,4 MPa, que deve ser mantida no circuito prim\u00e1rio.\u00a0Para uma subst\u00e2ncia pura, existe uma rela\u00e7\u00e3o definida entre a press\u00e3o de satura\u00e7\u00e3o e a temperatura de satura\u00e7\u00e3o.\u00a0Quanto maior a press\u00e3o, maior a temperatura de satura\u00e7\u00e3o.\u00a0A representa\u00e7\u00e3o gr\u00e1fica dessa rela\u00e7\u00e3o entre temperatura e press\u00e3o em condi\u00e7\u00f5es saturadas \u00e9 chamada curva de press\u00e3o de vapor e pode ser vista no\u00a0<\/span><strong><span>diagrama de fases da \u00e1gua<\/span><\/strong><span>\u00a0.\u00a0Este diagrama \u00e9 mostrado na figura.<\/span><\/p>\n<figure id=\"attachment_14172\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-14172\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Boiling-point-of-water.png\"><img loading=\"lazy\" class=\"size-medium wp-image-14172 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Boiling-point-of-water-300x255.png\" alt=\"Diagrama de fases da \u00e1gua\" width=\"300\" height=\"255\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Boiling-point-of-water-300x255.png\" \/><\/a><figcaption id=\"caption-attachment-14172\" class=\"wp-caption-text\"><span>Diagrama de fases da \u00e1gua.<\/span><br \/>\n<span>Fonte: wikipedia.org CC BY-SA<\/span><\/figcaption><\/figure>\n<p><span>Como pode ser visto no diagrama de fases da \u00e1gua, nas regi\u00f5es bif\u00e1sicas (por exemplo, na fronteira das fases vapor \/ l\u00edquido), a especifica\u00e7\u00e3o da temperatura sozinha definir\u00e1 a press\u00e3o e a press\u00e3o especificada definir\u00e1 a temperatura.<\/span><\/p>\n<ul>\n<li><span>A\u00a0<\/span><strong><span>curva de vapor de satura\u00e7\u00e3o<\/span><\/strong><span>\u00a0\u00e9 a curva que separa o\u00a0<\/span><strong><span>estado de duas fases<\/span><\/strong><span>\u00a0e o\u00a0<\/span><strong><span>estado de vapor superaquecido<\/span><\/strong><span>\u00a0no diagrama Ts.<\/span><\/li>\n<li><span>A\u00a0<\/span><strong><span>curva de l\u00edquido saturado<\/span><\/strong><span>\u00a0\u00e9 a curva que separa o\u00a0<\/span><strong><span>estado l\u00edquido sub<\/span><\/strong><span>\u00a0&#8211;\u00a0<strong>resfriado<\/strong>\u00a0e o\u00a0<\/span><strong><span>estado bif\u00e1sico<\/span><\/strong><span>\u00a0no diagrama Ts.<\/span><\/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\"><\/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<h2><span>Entalpia espec\u00edfica do vapor \u00famido<\/span><\/h2>\n<p><span>A\u00a0<\/span><strong><span>entalpia espec\u00edfica da \u00e1gua l\u00edquida saturada<\/span><\/strong><span>\u00a0(x = 0) e do\u00a0<\/span><strong><span>vapor seco<\/span><\/strong><span>\u00a0(x = 1) pode ser selecionada nas tabelas de vapor.\u00a0No caso de\u00a0<\/span><strong><span>vapor \u00famido<\/span><\/strong><span>\u00a0, a entalpia real pode ser calculada com a qualidade do vapor,\u00a0<\/span><em><span>xe<\/span><\/em><span>\u00a0as entalpias espec\u00edficas de \u00e1gua l\u00edquida saturada e vapor seco:<\/span><\/p>\n<p><em><span>h\u00a0<\/span><\/em><em><sub><span>molhado<\/span><\/sub><\/em><em><span>\u00a0= h\u00a0<\/span><\/em><em><sub><span>s<\/span><\/sub><\/em><em><span>\u00a0x + (1 &#8211; x) h\u00a0<\/span><\/em><em><sub><span>l<\/span><\/sub><\/em><em>\u00a0\u00a0\u00a0\u00a0\u00a0<\/em><em>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em><\/p>\n<p><em><span>Onde<\/span><\/em><\/p>\n<p><em><span>h\u00a0<\/span><\/em><em><sub><span>\u00famido<\/span><\/sub><\/em><em><span>\u00a0= entalpia do vapor \u00famido (J \/ kg)<\/span><\/em><\/p>\n<p><em><span>h\u00a0<\/span><\/em><em><sub><span>s<\/span><\/sub><\/em><em><span>\u00a0= entalpia do vapor &#8220;seco&#8221; (J \/ kg)<\/span><\/em><\/p>\n<p><em><span>h\u00a0<\/span><\/em><em><sub><span>l<\/span><\/sub><\/em><em><span>\u00a0= entalpia de \u00e1gua l\u00edquida saturada (J \/ kg)<\/span><\/em><\/p>\n<p><span>Como pode ser visto, o vapor \u00famido sempre ter\u00e1 entalpia menor do que o vapor seco.<\/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 tabindex=\"0\" role=\"button\">\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<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Na termodin\u00e2mica, o termo satura\u00e7\u00e3o define uma condi\u00e7\u00e3o na qual uma mistura de vapor e l\u00edquido pode existir juntos.\u00a0Temperatura de satura\u00e7\u00e3o ou ponto de ebuli\u00e7\u00e3o.\u00a0Engenharia T\u00e9rmica Satura\u00e7\u00e3o Na termodin\u00e2mica, o termo\u00a0satura\u00e7\u00e3o\u00a0define uma condi\u00e7\u00e3o na qual uma mistura de vapor e l\u00edquido pode existir juntos a uma dada temperatura e press\u00e3o.\u00a0A temperatura na qual a\u00a0vaporiza\u00e7\u00e3o\u00a0(ebuli\u00e7\u00e3o) come\u00e7a &#8230; <a title=\"O que \u00e9 satura\u00e7\u00e3o &#8211; ponto de ebuli\u00e7\u00e3o &#8211; defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-saturacao-ponto-de-ebulicao-definicao\/\" aria-label=\"More on O que \u00e9 satura\u00e7\u00e3o &#8211; ponto de ebuli\u00e7\u00e3o &#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 satura\u00e7\u00e3o - ponto de ebuli\u00e7\u00e3o - defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Na termodin\u00e2mica, o termo satura\u00e7\u00e3o define uma condi\u00e7\u00e3o na qual uma mistura de vapor e l\u00edquido pode existir juntos. 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