{"id":1327,"date":"2009-05-27T15:13:29","date_gmt":"2009-05-27T13:13:29","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/?p=1327"},"modified":"2019-05-31T11:10:47","modified_gmt":"2019-05-31T09:10:47","slug":"fouling-factor-nelle-applicazioni-termiche","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/1327\/fouling-factor-nelle-applicazioni-termiche\/","title":{"rendered":"Fouling factor nelle applicazioni termiche"},"content":{"rendered":"<p>Gia altre volte abbiamo chiacchierato sul <a href=\"https:\/\/www.tempco.it\/blog\/3145\/sporcamento-fouling-e-sedimentazione-negli-scambiatori-di-calore\/\" target=\"_blank\" rel=\"noopener\">fouling factor<\/a> in queste pagine&#8230;<\/p>\n<p>Abbiamo linkato anche delle <a href=\"https:\/\/www.tempco.it\/wp-content\/uploads\/2012\/12\/Fattori-di-sporcamento.pdf\">tabelle <\/a>che danno dei valori attendibili&#8230;<\/p>\n<p>Per applicazioni specifiche con tipologie particolari di scambiatori, esiste poi parecchia letteratura che dispensa consigli e valori tipici:<\/p>\n<p style=\"padding-left: 30px;\"><em>Typical heat transfer coefficients of plate heat exchangers are around 6000 W\/m\u00b2K compared with this are the heat transfer coefficients of shell and tube heat exchangers around 1500 W\/m\u00b2K. Caused by these different heat transfer coefficients it is not advisable to calculate plate heat exchangers with the fouling resistance of shell and tube heat exchangers. With an exemplary fouling resistance of 0,15m\u00b2K\/kW is the surface margin of a shell and tube heat exchanger around 22%. For the same example the surface margin of a plate heat exchanger will be 90%.<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>There are different recommendations for the fouling resistance of plate heat exchangers. In general the choice of the fouling resistance should result an over sizing of the plate heat exchanger below 25%.<\/em><\/p>\n<p>Girovagando per il web mi sono imbattuto in alcuni siti interessanti che danno ulteriori indicazioni.<\/p>\n<p>Uno su tutti ed onestamente il mio preferito per le tante preziose informazioni tecniche contenute \u00e8 <a href=\"http:\/\/www.engineeringpage.com\/technology\/thermal\/fouling_factors.html\">ENGINEERING PAGE<\/a>.<\/p>\n<p>&#8230;a voi la palla&#8230;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter\" title=\"Piastre sporche\" src=\"http:\/\/www.tempco.it\/static\/images\/news\/fouling_02.jpg\" alt=\"\" width=\"200\" height=\"150\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gia altre volte abbiamo chiacchierato sul fouling factor in queste pagine&#8230; Abbiamo linkato anche delle tabelle che danno dei valori [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[42,4,5,9,37],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.5 - 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