{"id":62,"date":"2007-07-18T16:41:58","date_gmt":"2007-07-18T14:41:58","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/62\/scambiatore-di-calore\/"},"modified":"2019-01-24T14:48:32","modified_gmt":"2019-01-24T13:48:32","slug":"scambiatore-di-calore","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/62\/scambiatore-di-calore\/","title":{"rendered":"Scambiatori di calore"},"content":{"rendered":"<p><a title=\"Scambiatore a piastre\" href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/dscf0698.JPG\"><img decoding=\"async\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/dscf0698.thumbnail.JPG\" alt=\"Scambiatore a piastre\" align=\"left\" \/><\/a><\/p>\n<p>Lo <strong>scambiatore di calore<\/strong> \u00e8 un&#8217;apparecchiatura che serve a <strong>trasferire<\/strong> <strong>l\u2019energia termica<\/strong> (il calore) tra due fluidi aventi temperature differenti<\/p>\n<p>Esistono tantissimi tipi differenti di scambiatori di calore che variano a seconda della tipologia di fluido tra i quali devono trasmettere e scambiare il calore.<br \/>\nGli <strong>scambiatori di calore<\/strong> sono apparecchiature \u201c<strong>passive<\/strong>\u201d, ovvero non generano il calore ma si limitano a trasferirlo.<br \/>\nEsistono scambiatori a miscelazione ed a superficie: nel secondo caso ci sono diversi tipi di scambiatori, classificati in base alla tipologia costruttiva.<\/p>\n<p><!--more--><\/p>\n<p>Le tipologie degli scambiatori di calore, basandosi sulla tecnologia costruttiva, sono :<\/p>\n<ul>\n<li><strong>scambiatori di calore a fascio tubero (shell and tube):<\/strong> uno dei fluidi passa all&#8217;interno di tubi di sezione solitamente circolare e l&#8217;altro all&#8217;esterno dei tubi stessi, in un mantello, completo di appositi deflettori (setti) che ne aumentano la turbolenza (ovvero lo scambio di calore);<\/li>\n<li><strong>scambiatori di calore a piastre (plate heat exchangers):<\/strong> i due fuidi lambiscono i lati opposti di una lamiera corrugata o piana con l&#8217;inserimento di turbolatori in camere alternate e tra loro isolate da guarnizioni o saldature (ispezionabili o saldati), tipicamente in controcorrente;<\/li>\n<li><strong>scambiatori di calore a spirale:<\/strong> i due fluidi passano ai lati opposti di una lamiera liscia in camere avvolte a spirale;<\/li>\n<li><strong>scambiatori di calore a blocchi: <\/strong>i fluidi circolano in fori cilindrici (o ovoidali) solitamente disposti ortogonalmente nei due lati (tipica costruzione in grafite);<\/li>\n<li><strong>scambiatori di calore a pacco alettato o batterie o radiatori<\/strong>: uno dei fluidi passa all&#8217;interno di tubi e l&#8217;altro (gassoso) attraverso il pacco alettato all&#8217;esterno dei tubi.<\/li>\n<\/ul>\n<div style=\"width: 100%\">\n<a title=\"Scambiatore a spirale\" href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/spiral.jpg\"><img decoding=\"async\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/spiral.thumbnail.jpg\" alt=\"Scambiatore a spirale\" align=\"left\" \/><\/a><a title=\"Scambiatore a piastre\" href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/dscf0550.JPG\"><img decoding=\"async\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/dscf0550.thumbnail.JPG\" alt=\"Scambiatore a piastre\" align=\"left\" \/><\/a><a title=\"Scambiatori a pacco alettato\" href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/dscf0903.JPG\"><img decoding=\"async\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/dscf0903.thumbnail.JPG\" alt=\"Scambiatori a pacco alettato\" align=\"left\" \/><\/a><a title=\"Scambiatori saldati\" href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/dsc01122.JPG\"><img decoding=\"async\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/dsc01122.thumbnail.JPG\" alt=\"Scambiatori saldati\" align=\"left\" \/><\/a><a title=\"Scambiatori a piastre e fascio tubiero\" href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/mvc-259x.JPG\"><img decoding=\"async\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2007\/07\/mvc-259x.thumbnail.JPG\" alt=\"Scambiatori a piastre e fascio tubiero\" align=\"left\" \/><\/a><\/div>\n<div style=\"clear:both;\">\n<strong>Link utili riguardanti gli scambiatori di calore:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/it.wikipedia.org\/wiki\/Scambiatore_di_calore\">Scambiatori di calore wikipedia<\/a><\/li>\n<li><a href=\"https:\/\/commons.wikimedia.org\/wiki\/Category:Heat_exchangers\">Scambiatori di calore wikimedia<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Scambiatori di calore: cosa sono, come funzionano e categorie di raggruppamento.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,8,4,5,9],"tags":[],"class_list":["post-62","post","type-post","status-publish","format-standard","hentry","category-energia-termica","category-glossary","category-raffreddamento","category-riscaldamento","category-scambiatori-di-calore"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Scambiatori di calore - 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\/62\/scambiatore-di-calore\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Scambiatori di 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