{"id":47072,"date":"2019-11-03T03:57:00","date_gmt":"2019-11-03T02:57:00","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-o-refrigerante-do-reator-delta-t-balanco-energetico-definicao\/"},"modified":"2020-03-03T17:37:23","modified_gmt":"2020-03-03T16:37:23","slug":"o-que-e-o-refrigerante-do-reator-delta-t-balanco-energetico-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-o-refrigerante-do-reator-delta-t-balanco-energetico-definicao\/","title":{"rendered":"O que \u00e9 o refrigerante do reator delta T – Balan\u00e7o energ\u00e9tico – Defini\u00e7\u00e3o"},"content":{"rendered":"
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Delta do l\u00edquido refrigerante do reator T – Balan\u00e7o de energia.\u00a0A energia t\u00e9rmica produzida por um reator est\u00e1 diretamente relacionada \u00e0 taxa de fluxo de massa do fluido de arrefecimento do reator e \u00e0 diferen\u00e7a de temperatura atrav\u00e9s do n\u00facleo.\u00a0Engenharia T\u00e9rmica<\/div>\n<\/div>\n
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Delta do l\u00edquido refrigerante do reator T – Balan\u00e7o de energia<\/h2>\n

Outra rela\u00e7\u00e3o muito \u00fatil \u00e9 que a energia t\u00e9rmica produzida por um reator est\u00e1 diretamente relacionada \u00e0 vaz\u00e3o m\u00e1ssica do l\u00edquido de arrefecimento do reator e \u00e0 diferen\u00e7a de temperatura atrav\u00e9s do n\u00facleo.<\/p>\n

\"equa\u00e7\u00e3o<\/a><\/p>\n

Numa base termodin\u00e2mica direta, essa gera\u00e7\u00e3o de calor tamb\u00e9m est\u00e1 relacionada \u00e0 diferen\u00e7a de temperatura do fluido atrav\u00e9s do n\u00facleo e \u00e0 taxa de fluxo de massa do fluido que passa atrav\u00e9s do n\u00facleo.\u00a0Assim, o tamanho do n\u00facleo do reator \u00e9 dependente e limitado por muito pouco l\u00edquido pode ser passado atrav\u00e9s do n\u00facleo para remover a\u00a0energia t\u00e9rmica<\/a>\u00a0gerada\u00a0.\u00a0Observe que, em\u00a0PWRs<\/a>\u00a0, a temperatura de sa\u00edda do n\u00facleo \u00e9 limitada.\u00a0Em um reator de \u00e1gua pressurizada t\u00edpico, o l\u00edquido de arrefecimento prim\u00e1rio quente (\u00a0\u00e1gua 330 \u00b0 C; 626 \u00b0 F<\/strong>\u00a0) \u00e9 bombeado para\u00a0o gerador de vapor<\/strong>atrav\u00e9s da entrada prim\u00e1ria.\u00a0Isso requer manuten\u00e7\u00e3o de press\u00f5es muito altas para manter a \u00e1gua no estado l\u00edquido.\u00a0Para impedir a ebuli\u00e7\u00e3o do l\u00edquido de arrefecimento prim\u00e1rio e fornecer uma margem de sub-resfriamento (a diferen\u00e7a entre a temperatura do pressurizador e a temperatura mais alta no n\u00facleo do reator), press\u00f5es em torno de 16 MPa s\u00e3o t\u00edpicas para PWRs\u00a0.\u00a0<\/strong>O\u00a0vaso de press\u00e3o do reator<\/a>\u00a0\u00e9 o componente principal, que limita a\u00a0efici\u00eancia t\u00e9rmica de cada usina nuclear<\/a>\u00a0, uma vez que o vaso do reator deve suportar altas press\u00f5es.\u00a0Muitos outros fatores afetam a quantidade de calor gerada dentro do n\u00facleo de um reator, mas sua taxa limitadora de gera\u00e7\u00e3o \u00e9 baseada na quantidade de energia que pode ser transportada com seguran\u00e7a pelo refrigerante.<\/p>\n<\/div>\n<\/div>\n

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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<\/div>\n","protected":false},"excerpt":{"rendered":"

Delta do l\u00edquido refrigerante do reator T – Balan\u00e7o de energia.\u00a0A energia t\u00e9rmica produzida por um reator est\u00e1 diretamente relacionada \u00e0 taxa de fluxo de massa do fluido de arrefecimento do reator e \u00e0 diferen\u00e7a de temperatura atrav\u00e9s do n\u00facleo.\u00a0Engenharia T\u00e9rmica Delta do l\u00edquido refrigerante do reator T – Balan\u00e7o de energia Outra rela\u00e7\u00e3o muito … 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":"\nO que \u00e9 o refrigerante do reator delta T - Balan\u00e7o energ\u00e9tico - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Delta do l\u00edquido refrigerante do reator T - Balan\u00e7o de energia. 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