{"id":706,"date":"2009-02-11T14:52:07","date_gmt":"2009-02-11T12:52:07","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/?p=706"},"modified":"2012-06-21T11:00:45","modified_gmt":"2012-06-21T09:00:45","slug":"coefficienti-di-convezione-e-di-irraggiamento-i-valori-tipici","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/706\/coefficienti-di-convezione-e-di-irraggiamento-i-valori-tipici\/","title":{"rendered":"Coefficienti di convezione e di irraggiamento, i valori tipici"},"content":{"rendered":"<p>Per il calcolo del <a href=\"http:\/\/it.wikipedia.org\/wiki\/Conduzione_termica\"><strong>coefficiente complessivo di trasmissione termica<\/strong><\/a> \u00e8 necessario effettuare la somma del coefficiente di convezione e del coefficiente di irraggiamento.<\/p>\n<p>Di seguito potete trovare alcune tabelle con i valori tipicamente utilizzati nei calcoli termodinamici.<\/p>\n<p><!--more--><\/p>\n<p>H totale = H convezione (Tabelle 1 e 2) + H irraggiamento (Tabella 3)<\/p>\n<p>TABELLA 1<\/p>\n<p style=\"text-align: left;\">Coefficienti di convezione per tubazioni e pareti piane in aria tranquilla espressi in<strong> [Kcal \/ m2 h \u00b0C]<\/strong><\/p>\n<p>NOTA: i valori posti tra parentesi indicano un risultato teorico. Per effetto delle inevitabili correnti d&#8217;aria, non \u00e8 mai consigliabile utilizzare un coefficiente inferiore a 3 [Kcal\/m2h\u00b0C].<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-719 aligncenter\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella01.jpg\" alt=\"tabella01\" width=\"496\" height=\"198\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella01.jpg 496w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella01-300x119.jpg 300w\" sizes=\"auto, (max-width: 496px) 100vw, 496px\" \/><\/p>\n<p>TABELLA 2<br \/>\nCoefficienti di convezione per tubazioni e pareti piane in aria in movimento espressi in <strong>[Kcal \/ m2 h \u00b0C]<\/strong>.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-711 aligncenter\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella-21.bmp\" alt=\"tabella-21\" width=\"469\" height=\"253\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella-21.bmp 469w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella-21-300x161.jpg 300w\" sizes=\"auto, (max-width: 469px) 100vw, 469px\" \/><\/p>\n<p>TABELLA 3<br \/>\nCoefficienti di irraggiamento per tubazioni pareti piane in aria, con costante di irradiazione C=4.6 (corpo nero) e C=4 (valore pratico per superfici nude isolate) espressi in <strong>[Kcal \/ m2 h \u00b0C]<\/strong>.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-712 aligncenter\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella-3.jpg\" alt=\"tabella-3\" width=\"526\" height=\"199\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella-3.jpg 526w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella-3-300x113.jpg 300w\" sizes=\"auto, (max-width: 526px) 100vw, 526px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Per il calcolo del coefficiente complessivo di trasmissione termica \u00e8 necessario effettuare la somma del coefficiente di convezione e del [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,8,4,5,10,37],"tags":[],"class_list":["post-706","post","type-post","status-publish","format-standard","hentry","category-energia-termica","category-glossary","category-raffreddamento","category-riscaldamento","category-risparmio-energetico","category-termotecnica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Coefficienti di convezione e di irraggiamento, i valori tipici - Tempco Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tempco.it\/blog\/706\/coefficienti-di-convezione-e-di-irraggiamento-i-valori-tipici\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Coefficienti di convezione e di irraggiamento, i valori tipici - Tempco Blog\" \/>\n<meta property=\"og:description\" content=\"Per il calcolo del coefficiente complessivo di trasmissione termica \u00e8 necessario effettuare la somma del coefficiente di convezione e del [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tempco.it\/blog\/706\/coefficienti-di-convezione-e-di-irraggiamento-i-valori-tipici\/\" \/>\n<meta property=\"og:site_name\" content=\"Tempco Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/tempco.srl\" \/>\n<meta property=\"article:published_time\" content=\"2009-02-11T12:52:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2012-06-21T09:00:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2009\/02\/tabella01.jpg\" \/>\n<meta name=\"author\" content=\"S. 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