{"id":49242,"date":"2019-11-15T19:38:49","date_gmt":"2019-11-15T18:38:49","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/o-que-e-exemplo-calculo-de-bomba-de-calor-definicao\/"},"modified":"2020-01-25T09:24:51","modified_gmt":"2020-01-25T08:24:51","slug":"o-que-e-exemplo-calculo-de-bomba-de-calor-definicao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/o-que-e-exemplo-calculo-de-bomba-de-calor-definicao\/","title":{"rendered":"O que \u00e9 exemplo – C\u00e1lculo de bomba de calor – Defini\u00e7\u00e3o"},"content":{"rendered":"
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Exemplo – C\u00e1lculo da bomba de calor.\u00a0Uma bomba de calor revers\u00edvel possui um coeficiente de desempenho, COP = 3,0, quando operada no modo de aquecimento.\u00a0Calcule os principais par\u00e2metros.\u00a0Engenharia T\u00e9rmica<\/div>\n<\/div>\n
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Exemplo – Bomba de Calor – Aquecimento e Ar Condicionado<\/h2>\n

\"Bomba<\/a>Uma\u00a0bomba de calor revers\u00edvel<\/strong>\u00a0possui um coeficiente de desempenho,\u00a0COP = 3,0<\/strong>\u00a0, quando operada no\u00a0modo de aquecimento<\/strong>\u00a0.\u00a0Seu compressor consome\u00a01500 W<\/strong>\u00a0de energia el\u00e9trica.<\/p>\n

    \n
  1. Calcule a quantidade de calor (\u00a0Q\u00a0<\/strong>quente<\/sub><\/strong>\u00a0) a bomba de calor pode adicionar a um quarto?<\/li>\n
  2. Se a\u00a0bomba de calor<\/strong>\u00a0fosse colocada no\u00a0modo de resfriamento<\/strong>\u00a0(por exemplo, para atuar como um ar-condicionado no ver\u00e3o), qual seria a expectativa do seu\u00a0coeficiente de desempenho<\/strong>\u00a0?\u00a0Suponha que tudo o mais permane\u00e7a o mesmo e negligencie todas as outras perdas.<\/li>\n<\/ol>\n

    Solu\u00e7\u00e3o:<\/p>\n

    No\u00a0COP<\/strong>\u00a0, que \u00e9 definido como:<\/p>\n

    \"coeficiente<\/a><\/p>\n

    a quantidade de calor que a bomba de calor pode adicionar a uma sala \u00e9 igual a:<\/p>\n

    Q\u00a0<\/strong>quente<\/sub><\/strong>\u00a0=\u00a0aquecimento de<\/sub>\u00a0COP\u00a0x W = 3 x 1500 =\u00a04500 W ou 4500 J \/ s<\/strong><\/p>\n

    No caso do\u00a0modo de resfriamento<\/strong>\u00a0, a bomba de calor (ar condicionado) com\u00a0motor de\u00a01500 W<\/strong>\u00a0pode retirar o calor\u00a0Q de\u00a0frio<\/sub><\/strong>\u00a0de dentro da casa e despejar Q\u00a0quente<\/sub>\u00a0= 4500 W no exterior quente.\u00a0Usando a primeira lei da termodin\u00e2mica, que declara:<\/p>\n

    Q\u00a0frio<\/sub>\u00a0+ W = Q\u00a0<\/strong>quente<\/strong>\u00a0,<\/sub><\/p>\n

    obt\u00e9m-se o calor,\u00a0Q\u00a0frio<\/sub>\u00a0= 3000 W<\/strong>\u00a0.\u00a0A partir da defini\u00e7\u00e3o:\u00a0COP\u00a0cooling<\/sub><\/strong>\u00a0= 3000\/1500 =\u00a02<\/strong>\u00a0.<\/p>\n

    Observe que, neste exemplo, temos muitas suposi\u00e7\u00f5es.\u00a0Por exemplo, assumimos que a diferen\u00e7a de temperatura (T\u00a0<\/span>quente<\/span><\/sub>\u00a0– T\u00a0<\/span>fria<\/span><\/sub>\u00a0) \u00e9 a mesma para os dois modos.\u00a0Mas trocamos reservat\u00f3rios, sem nenhum impacto na COP.\u00a0\u00c9 apenas um exemplo ilustrativo.<\/span><\/p>\n<\/div>\n<\/div>\n

    ……………………………………………………………………………………………………………………………….<\/p>\n

    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":"

    Exemplo – C\u00e1lculo da bomba de calor.\u00a0Uma bomba de calor revers\u00edvel possui um coeficiente de desempenho, COP = 3,0, quando operada no modo de aquecimento.\u00a0Calcule os principais par\u00e2metros.\u00a0Engenharia T\u00e9rmica Exemplo – Bomba de Calor – Aquecimento e Ar Condicionado Uma\u00a0bomba de calor revers\u00edvel\u00a0possui um coeficiente de desempenho,\u00a0COP = 3,0\u00a0, quando operada no\u00a0modo de aquecimento\u00a0.\u00a0Seu compressor … 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 exemplo - C\u00e1lculo de bomba de calor - Defini\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Exemplo - C\u00e1lculo da bomba de calor. Uma bomba de calor revers\u00edvel possui um coeficiente de desempenho, COP = 3,0, quando operada no modo de aquecimento. 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