{"id":47987,"date":"2019-11-07T15:09:15","date_gmt":"2019-11-07T14:09:15","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-o-ciclo-rankine-processos-expansao-e-compressao-definicao\/"},"modified":"2020-01-26T13:43:25","modified_gmt":"2020-01-26T12:43:25","slug":"o-que-e-o-ciclo-rankine-processos-expansao-e-compressao-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-ciclo-rankine-processos-expansao-e-compressao-definicao\/","title":{"rendered":"O que \u00e9 o ciclo Rankine &#8211; Processos &#8211; Expans\u00e3o e compress\u00e3o &#8211; Defini\u00e7\u00e3o"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Ciclo de Rankine &#8211; Processos &#8211; Expans\u00e3o e Compress\u00e3o.\u00a0Em um ciclo Rankine ideal, o sistema que executa o ciclo passa por uma s\u00e9rie de quatro processos.\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>Ciclo Rankine &#8211; Processos<\/h2>\n<p>Em um ciclo Rankine ideal, o sistema que executa o ciclo passa por uma s\u00e9rie de quatro processos: dois processos isentr\u00f3picos (adiab\u00e1ticos revers\u00edveis) alternados com dois processos isob\u00e1ricos.<\/p>\n<p><strong><b>Ciclo Rankine &#8211; Processos<\/b><\/strong><\/p>\n<ul>\n<li>\n<figure id=\"attachment_17766\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-17766\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Rankine-Cycle-Ts-Diagram-min.png\"><img loading=\"lazy\" class=\"size-medium wp-image-17766 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Rankine-Cycle-Ts-Diagram-min-300x300.png\" alt=\"Ciclo de Rankine - Diagrama Ts\" width=\"300\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Rankine-Cycle-Ts-Diagram-min-300x300.png\" \/><\/a><figcaption id=\"caption-attachment-17766\" class=\"wp-caption-text\">Ciclo de Rankine &#8211; Diagrama Ts<\/figcaption><\/figure>\n<p><strong>Compress\u00e3o isentr\u00f3pica<\/strong>\u00a0(compress\u00e3o em bombas centr\u00edfugas) &#8211; O condensado l\u00edquido \u00e9 comprimido adiabaticamente do estado 1 ao estado 2 por bombas centr\u00edfugas (geralmente por bombas de condensa\u00e7\u00e3o e depois por bombas de \u00e1gua de alimenta\u00e7\u00e3o).\u00a0Os condensados \u200b\u200bl\u00edquidos s\u00e3o bombeados do condensador para a caldeira de alta press\u00e3o.\u00a0Nesse processo, o ambiente trabalha com o fluido, aumentando sua entalpia (h = u + pv) e comprimindo-o (aumentando sua press\u00e3o).\u00a0Por outro lado, a entropia permanece inalterada.\u00a0O trabalho necess\u00e1rio para o compressor \u00e9 dado por\u00a0<strong>W\u00a0<\/strong><strong><sub>Pumps<\/sub><\/strong><strong>\u00a0= H\u00a0<\/strong><strong><sub>2<\/sub><\/strong><strong>\u00a0&#8211; H\u00a0<\/strong><strong><sub>1<\/sub><\/strong><strong>\u00a0.<\/strong><\/li>\n<li><strong>Adi\u00e7\u00e3o de calor isob\u00e1rico<\/strong>\u00a0(em um trocador de calor &#8211; caldeira) &#8211; Nesta fase (entre o estado 2 e o estado 3), h\u00e1 uma transfer\u00eancia de calor de press\u00e3o constante para o condensado l\u00edquido de uma fonte externa, uma vez que a c\u00e2mara est\u00e1 aberta para entrar e sair .\u00a0A \u00e1gua de alimenta\u00e7\u00e3o (circuito secund\u00e1rio) \u00e9 aquecida at\u00e9 o ponto de ebuli\u00e7\u00e3o (2 \u2192 3a) desse fluido e depois evaporada na caldeira (3a \u2192 3).\u00a0O calor l\u00edquido adicionado \u00e9 dado por\u00a0<strong>Q\u00a0<\/strong><strong><sub>add<\/sub><\/strong><strong>\u00a0= H\u00a0<\/strong><strong><sub>3<\/sub><\/strong><strong>\u00a0&#8211; H\u00a0<\/strong><strong><sub>2<\/sub><\/strong><\/li>\n<li><strong>Expans\u00e3o isentr\u00f3pica<\/strong>\u00a0(expans\u00e3o em uma turbina a vapor) &#8211; O vapor da caldeira se expande adiabaticamente do estado 3 para o estado 4 em uma turbina a vapor para produzir trabalho e depois \u00e9 descarregado no condensador (parcialmente condensado).\u00a0O vapor trabalha nos arredores (p\u00e1s da turbina) e perde uma quantidade de entalpia igual ao trabalho que sai do sistema.\u00a0O trabalho realizado pela turbina \u00e9 dado por\u00a0<strong>W\u00a0<\/strong><strong><sub>T<\/sub><\/strong><strong>\u00a0= H\u00a0<\/strong><strong><sub>4<\/sub><\/strong><strong>\u00a0&#8211; H\u00a0<\/strong><strong><sub>3<\/sub><\/strong><strong>\u00a0.\u00a0<\/strong>Novamente a entropia permanece inalterada.<\/li>\n<li><strong>Rejei\u00e7\u00e3o de calor isob\u00e1rica (em um trocador de calor)<\/strong>\u00a0&#8211; Nesta fase, o ciclo \u00e9 conclu\u00eddo por um processo de press\u00e3o constante no qual o calor \u00e9 rejeitado pelo vapor parcialmente condensado.\u00a0H\u00e1 transfer\u00eancia de calor do vapor para a \u00e1gua de resfriamento que flui em um circuito de resfriamento.\u00a0O vapor condensa e a temperatura da \u00e1gua de resfriamento aumenta.\u00a0O calor l\u00edquido rejeitado \u00e9 dado por\u00a0<strong>Q\u00a0<\/strong><strong><sub>re<\/sub><\/strong><strong>\u00a0= H\u00a0<\/strong><strong><sub>4<\/sub><\/strong><strong>\u00a0&#8211; H\u00a0<\/strong><strong><sub>1<\/sub><\/strong><\/li>\n<\/ul>\n<p>Durante um ciclo de Rankine, o trabalho \u00e9 realizado no fluido pelas bombas entre os estados 1 e 2 (\u00a0<strong>i\u00a0<\/strong><strong>compress\u00e3o sentropic<\/strong>\u00a0).\u00a0O trabalho \u00e9 feito pelo fluido na turbina entre as fases 3 e 4 (\u00a0<strong>i\u00a0<\/strong><strong>expans\u00e3o sentropic<\/strong>\u00a0).\u00a0A diferen\u00e7a entre o trabalho realizado pelo fluido e o trabalho realizado no fluido \u00e9 o trabalho l\u00edquido produzido pelo ciclo e corresponde \u00e0 \u00e1rea delimitada pela curva do ciclo (no diagrama pV).\u00a0O fluido de trabalho em um ciclo Rankine segue um circuito fechado e \u00e9 reutilizado constantemente.<\/p>\n<p>Como pode ser visto, \u00e9 conveniente usar a entalpia e a primeira lei em termos de entalpia na an\u00e1lise desse ciclo termodin\u00e2mico.\u00a0Esta forma da lei\u00a0<strong>simplifica a descri\u00e7\u00e3o da transfer\u00eancia de energia<\/strong>\u00a0.\u00a0<strong>A press\u00e3o constante<\/strong>\u00a0, a\u00a0<strong>mudan\u00e7a de entalpia<\/strong>\u00a0\u00e9 igual \u00e0\u00a0<strong>energia<\/strong>\u00a0transferida do ambiente atrav\u00e9s do aquecimento:<\/p>\n<p><strong>Processo isob\u00e1rico (Vdp = 0):<\/strong><\/p>\n<p><strong>dH = dQ \u2192 Q = H\u00a0<\/strong><strong><sub>2<\/sub><\/strong><strong>\u00a0&#8211; H\u00a0<\/strong><strong><sub>1<\/sub><\/strong><\/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\">\n<p><strong><span>Na entropia constante<\/span><\/strong><span>\u00a0, ou seja, no processo isentr\u00f3pico, a\u00a0<\/span><strong><span>mudan\u00e7a de entalpia<\/span><\/strong><span>\u00a0\u00e9 igual ao\u00a0<\/span><strong><span>trabalho do processo de fluxo<\/span><\/strong><span>\u00a0realizado no ou pelo sistema:<\/span><\/p>\n<p><strong><span>Processo isentr\u00f3pico (dQ = 0):<\/span><\/strong><\/p>\n<p><strong><span>dH = Vdp \u2192 W = H\u00a0<\/span><\/strong><strong><sub><span>2<\/span><\/sub><\/strong><strong><span>\u00a0&#8211; H\u00a0<\/span><\/strong><strong><sub><span>1<\/span><\/sub><\/strong><\/p>\n<p><span>Veja tamb\u00e9m:\u00a0<\/span><a title=\"Primeira lei em termos de entalpia dH = dQ + Vdp\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/first-law-of-thermodynamics\/first-law-in-terms-of-enthalpy-dh-dq-vdp\/\"><span>Por que os engenheiros de energia usam entalpia?\u00a0Resposta: dH = dQ + Vdp<\/span><\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights  lgc-first\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Processo isentr\u00f3pico<\/span><\/h2>\n<p><span>Um\u00a0<\/span><a title=\"Processo isentr\u00f3pico\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-processo-isentropico-definicao\/\"><strong><span>processo isentr\u00f3pico<\/span><\/strong><\/a><span>\u00a0\u00e9 um\u00a0<\/span><a title=\"Processos termodin\u00e2micos\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-processo-termodinamico-definicao\/\"><strong><span>processo termodin\u00e2mico<\/span><\/strong><\/a><span>\u00a0, no qual a\u00a0<\/span><a title=\"O que \u00e9 entropia\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/what-is-entropy\/\"><strong><span>entropia<\/span><\/strong>\u00a0<\/a><span>do fluido ou g\u00e1s permanece constante.\u00a0Isso significa que o\u00a0<\/span><strong><span>processo isentr\u00f3pico<\/span><\/strong><span>\u00a0\u00e9 um caso especial de um\u00a0<\/span><strong><span>processo adiab\u00e1tico<\/span><\/strong><span>\u00a0no qual n\u00e3o h\u00e1 transfer\u00eancia de calor ou mat\u00e9ria.\u00a0\u00c9 um\u00a0<\/span><strong><span>processo adiab\u00e1tico revers\u00edvel<\/span><\/strong><span>\u00a0.\u00a0A suposi\u00e7\u00e3o de que n\u00e3o h\u00e1 transfer\u00eancia de calor \u00e9 muito importante, pois podemos usar a aproxima\u00e7\u00e3o adiab\u00e1tica apenas em\u00a0<\/span><strong><span>processos muito r\u00e1pidos<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><strong><span>Processo isentr\u00f3pico e a primeira lei<\/span><\/strong><\/p>\n<p><span>Para um sistema fechado, podemos escrever a\u00a0<\/span><strong><a title=\"Primeira lei em termos de entalpia dH = dQ + Vdp\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/first-law-of-thermodynamics\/first-law-in-terms-of-enthalpy-dh-dq-vdp\/\"><span>primeira lei da termodin\u00e2mica em termos de entalpia<\/span><\/a><\/strong><span>\u00a0:<\/span><\/p>\n<p><strong><span>dH = dQ + Vdp<\/span><\/strong><\/p>\n<p><strong><span>ou<\/span><\/strong><\/p>\n<p><strong><span>dH = TdS + Vdp<\/span><\/strong><\/p>\n<p><strong><span>Processo isentr\u00f3pico (dQ = 0):<\/span><\/strong><\/p>\n<p><strong><span>dH = Vdp \u2192 W = H\u00a0<\/span><\/strong><strong><sub><span>2<\/span><\/sub><\/strong><strong><span>\u00a0&#8211; H\u00a0<\/span><\/strong><strong><sub><span>1<\/span><\/sub><\/strong><strong>\u00a0 \u00a0\u00a0<\/strong><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-50 lgc-tablet-grid-50 lgc-mobile-grid-100 lgc-equal-heights  lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Processo isob\u00e1rico<\/span><\/h2>\n<p><span>Um\u00a0<\/span><a title=\"Processo isob\u00e1rico\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-processo-isobarico-definicao\/\"><strong><span>processo isob\u00e1rico<\/span><\/strong><\/a><span>\u00a0\u00e9 um\u00a0<\/span><a title=\"Processos termodin\u00e2micos\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-processo-termodinamico-definicao\/\"><span>processo termodin\u00e2mico<\/span><\/a><span>\u00a0, no qual a\u00a0<\/span><a title=\"O que \u00e9 press\u00e3o - F\u00edsica\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-properties\/what-is-pressure-physics\/\"><strong><span>press\u00e3o<\/span><\/strong><\/a><span>\u00a0do sistema\u00a0<\/span><strong><span>permanece constante<\/span><\/strong><span>\u00a0(p = const).\u00a0A transfer\u00eancia de calor para dentro ou para fora do sistema funciona, mas tamb\u00e9m altera a energia interna do sistema.<\/span><\/p>\n<p><span>Como existem mudan\u00e7as na\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-energia-interna-energia-termica-definicao\/\"><span>energia interna<\/span><\/a><span>\u00a0(dU) e no volume do sistema (\u2206V), os engenheiros costumam usar a\u00a0<\/span><a title=\"O que \u00e9 entalpia\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/what-is-enthalpy\/\"><strong><span>entalpia<\/span><\/strong><\/a><span>\u00a0do sistema, que \u00e9 definida como:<\/span><\/p>\n<p><em><strong><span>H = U + pV<\/span><\/strong><\/em><\/p>\n<p><strong><span>Processo isob\u00e1rico e a primeira lei<\/span><\/strong><\/p>\n<p><span>A forma cl\u00e1ssica da\u00a0<\/span><a title=\"Primeira Lei da Termodin\u00e2mica\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-a-primeira-lei-da-termodinamica-definicao\/\"><span>primeira lei da termodin\u00e2mica<\/span><\/a><span>\u00a0\u00e9 a seguinte equa\u00e7\u00e3o:<\/span><\/p>\n<p><strong><span>dU = dQ &#8211; dW<\/span><\/strong><\/p>\n<p><span>Nesta equa\u00e7\u00e3o, dW \u00e9 igual a\u00a0<\/span><strong><span>dW = pdV<\/span><\/strong><span>\u00a0e \u00e9 conhecido como\u00a0<\/span><a title=\"Trabalho p\u0394V - Trabalho de Fronteira e Trabalho V\u0394p\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/laws-of-thermodynamics\/first-law-of-thermodynamics\/p%ce%b4v-work-boundary-work-and-v%ce%b4p-work\/\"><span>trabalho de fronteira<\/span><\/a><span>\u00a0.\u00a0Em um processo isob\u00e1rico e no g\u00e1s ideal,\u00a0<\/span><strong><span>parte do calor adicionado<\/span><\/strong><span>\u00a0ao sistema ser\u00e1 usada para\u00a0<\/span><strong><span>realizar o trabalho<\/span><\/strong><span>\u00a0e\u00a0<\/span><strong><span>parte do calor<\/span><\/strong><span>\u00a0adicionado aumentar\u00e1 a\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-energia-interna-energia-termica-definicao\/\"><strong><span>energia interna<\/span><\/strong><\/a><span>\u00a0(aumentar\u00e1 a temperatura).\u00a0Portanto, \u00e9 conveniente usar a\u00a0<\/span><strong><span>entalpia em<\/span><\/strong><span>\u00a0vez da energia interna.<\/span><\/p>\n<p><strong><span>Processo isob\u00e1rico (Vdp = 0):<\/span><\/strong><\/p>\n<p><strong><span>dH = dQ \u2192 Q = H\u00a0<\/span><\/strong><strong><sub><span>2<\/span><\/sub><\/strong><strong><span>\u00a0&#8211; H\u00a0<\/span><\/strong><strong><sub><span>1<\/span><\/sub><\/strong><\/p>\n<p><strong><span>Na entropia constante<\/span><\/strong><span>\u00a0, ou seja, no processo isentr\u00f3pico, a\u00a0<\/span><strong><span>mudan\u00e7a de entalpia<\/span><\/strong><span>\u00a0\u00e9 igual ao\u00a0<\/span><strong><span>trabalho do processo de fluxo<\/span><\/strong><span>\u00a0realizado no sistema ou pelo mesmo.<\/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><span>Ciclo de Rankine &#8211; diagrama pV, Ts<\/span><\/h2>\n<figure id=\"attachment_17781\" class=\"wp-caption alignright\" aria-describedby=\"caption-attachment-17781\"><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Rankine-Cycle-Ts-diagram.png\"><img loading=\"lazy\" class=\"wp-image-17781 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Rankine-Cycle-Ts-diagram.png\" alt=\"Ciclo de Rankine - diagrama de Ts\" width=\"450\" height=\"415\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Rankine-Cycle-Ts-diagram.png\" \/><\/a><figcaption id=\"caption-attachment-17781\" class=\"wp-caption-text\"><span>Ciclo de Rankine &#8211; diagrama de Ts<\/span><\/figcaption><\/figure>\n<p><span>O\u00a0<\/span><strong><span>ciclo Rankine<\/span><\/strong><span>\u00a0\u00e9 frequentemente plotado em um diagrama de volume de press\u00e3o (\u00a0<\/span><strong><span>diagrama pV<\/span><\/strong><span>\u00a0) e em um diagrama de temperatura-entropia (\u00a0<\/span><strong><span>diagrama Ts<\/span><\/strong><span>\u00a0).<\/span><\/p>\n<p><span>Quando plotados em um\u00a0<\/span><strong><span>diagrama de volume de press\u00e3o<\/span><\/strong><span>\u00a0, os processos isob\u00e1ricos seguem as linhas isob\u00e1ricas do g\u00e1s (as linhas horizontais), os processos adiab\u00e1ticos se movem entre essas linhas horizontais e a \u00e1rea delimitada pelo caminho completo do ciclo representa o\u00a0<\/span><strong><span>trabalho total<\/span><\/strong><span>\u00a0que pode ser feito durante um ciclo.<\/span><\/p>\n<p><span>O\u00a0<\/span><strong><span>diagrama de temperatura-entropia<\/span><\/strong><span>\u00a0(\u00a0<strong>diagrama<\/strong>\u00a0Ts) no qual o estado termodin\u00e2mico \u00e9 especificado por um ponto em um gr\u00e1fico com\u00a0<\/span><a title=\"Entropia espec\u00edfica\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/what-is-entropy\/specific-entropy\/\"><span>entropia<\/span><\/a><span>\u00a0(s)\u00a0<a title=\"Entropia espec\u00edfica\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/what-is-entropy\/specific-entropy\/\">espec\u00edfica<\/a>\u00a0(s) como eixo horizontal e\u00a0<\/span><a title=\"Escala Kelvin - Temperatura Absoluta\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/thermodynamic-properties\/what-is-temperature-physics\/kelvin-scale-absolute-temperature\/\"><span>temperatura absoluta<\/span><\/a><span>\u00a0(T) como eixo vertical.\u00a0Os diagramas Ts s\u00e3o uma ferramenta \u00fatil e comum, principalmente porque ajuda a visualizar a\u00a0<\/span><strong><span>transfer\u00eancia de calor<\/span><\/strong><span>\u00a0durante um processo.\u00a0Para processos revers\u00edveis (ideais), a \u00e1rea sob a curva Ts de um processo \u00e9 o\u00a0<\/span><strong><span>calor transferido<\/span><\/strong><span>\u00a0para o sistema durante esse processo.<\/span><\/p>\n<\/div>\n<\/div>\n<\/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","protected":false},"excerpt":{"rendered":"<p>Ciclo de Rankine &#8211; Processos &#8211; Expans\u00e3o e Compress\u00e3o.\u00a0Em um ciclo Rankine ideal, o sistema que executa o ciclo passa por uma s\u00e9rie de quatro processos.\u00a0Engenharia T\u00e9rmica Ciclo Rankine &#8211; Processos Em um ciclo Rankine ideal, o sistema que executa o ciclo passa por uma s\u00e9rie de quatro processos: dois processos isentr\u00f3picos (adiab\u00e1ticos revers\u00edveis) alternados &#8230; <a title=\"O que \u00e9 o ciclo Rankine &#8211; Processos &#8211; Expans\u00e3o e compress\u00e3o &#8211; Defini\u00e7\u00e3o\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-ciclo-rankine-processos-expansao-e-compressao-definicao\/\" aria-label=\"More on O que \u00e9 o ciclo Rankine &#8211; Processos &#8211; Expans\u00e3o e compress\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 o ciclo Rankine - Processos - Expans\u00e3o e compress\u00e3o - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Ciclo de Rankine - Processos - Expans\u00e3o e Compress\u00e3o. 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