{"id":43030,"date":"2019-10-07T21:56:19","date_gmt":"2019-10-07T20:56:19","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quest-ce-quun-echangeur-de-chaleur-a-flux-paralleles-et-a-contre-courant-definition\/"},"modified":"2020-02-05T14:54:01","modified_gmt":"2020-02-05T13:54:01","slug":"quest-ce-quun-echangeur-de-chaleur-a-flux-paralleles-et-a-contre-courant-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-quun-echangeur-de-chaleur-a-flux-paralleles-et-a-contre-courant-definition\/","title":{"rendered":"Qu&#8217;est-ce qu&#8217;un \u00e9changeur de chaleur \u00e0 flux parall\u00e8les et \u00e0 contre-courant &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">\u00c9changeur de chaleur \u00e0 courant parall\u00e8le et \u00e0 contre-courant.\u00a0La figure repr\u00e9sente les directions d&#8217;\u00e9coulement du fluide dans les \u00e9changeurs en parall\u00e8le et \u00e0 contre-courant.\u00a0G\u00e9nie thermique<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-60 lgc-tablet-grid-60 lgc-mobile-grid-100 lgc-equal-heights lgc-first\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2>\u00c9changeur de chaleur \u00e0 courant parall\u00e8le et \u00e0 contre-courant<\/h2>\n<p><strong>Les \u00e9changeurs de chaleur<\/strong>\u00a0sont g\u00e9n\u00e9ralement class\u00e9s en fonction de la disposition des flux et du type de construction.\u00a0L&#8217;\u00a0<strong>\u00e9changeur de chaleur le<\/strong>\u00a0plus simple\u00a0est celui pour lequel les fluides chauds et froids se d\u00e9placent dans le m\u00eame sens ou dans des directions oppos\u00e9es.\u00a0Cet \u00e9changeur de chaleur est constitu\u00e9 de deux tuyaux concentriques de diam\u00e8tres diff\u00e9rents.<\/p>\n<ul>\n<li><strong>arrangement \u00e0 flux parall\u00e8le<\/strong>\u00a0.\u00a0Dans l\u2019arrangement \u00e0 flux parall\u00e8le, les fluides chauds et froids entrent par la m\u00eame extr\u00e9mit\u00e9, s\u2019\u00e9coulent dans la m\u00eame direction et partent par la m\u00eame extr\u00e9mit\u00e9.<\/li>\n<li><strong>arrangement \u00e0 contre-courant<\/strong>\u00a0.\u00a0Dans le dispositif \u00e0 contre-courant, les fluides entrent par des extr\u00e9mit\u00e9s oppos\u00e9es, s&#8217;\u00e9coulent dans des directions oppos\u00e9es et sortent par des extr\u00e9mit\u00e9s oppos\u00e9es.<\/li>\n<\/ul>\n<p>La figure repr\u00e9sente les directions d&#8217;\u00e9coulement du fluide dans les \u00e9changeurs en parall\u00e8le et \u00e0 contre-courant.\u00a0Dans des conditions comparables, plus de chaleur est transf\u00e9r\u00e9e dans un syst\u00e8me \u00e0 contre-courant que dans un \u00e9changeur de chaleur \u00e0 flux parall\u00e8le.\u00a0Les profils de temp\u00e9rature des deux \u00e9changeurs de chaleur indiquent deux inconv\u00e9nients majeurs dans la conception \u00e0 \u00e9coulement parall\u00e8le.<\/p>\n<ul>\n<li>La grande diff\u00e9rence de temp\u00e9rature aux extr\u00e9mit\u00e9s provoque de fortes contraintes thermiques.<\/li>\n<li>La temp\u00e9rature du fluide froid sortant de l&#8217;\u00e9changeur thermique ne d\u00e9passe jamais la temp\u00e9rature la plus basse du fluide chaud.<\/li>\n<\/ul>\n<p>La conception d&#8217;un \u00e9changeur de chaleur \u00e0 \u00e9coulement parall\u00e8le est avantageuse lorsque deux fluides doivent \u00eatre port\u00e9s \u00e0 presque la m\u00eame temp\u00e9rature.<\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-40 lgc-tablet-grid-40 lgc-mobile-grid-100 lgc-equal-heights lgc-last\">\n<div class=\"inside-grid-column\">\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-parallel-flow.png\"><img loading=\"lazy\" class=\"aligncenter size-medium wp-image-21031 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-parallel-flow-219x300.png\" alt=\"\u00e9changeur de chaleur - flux parall\u00e8le\" width=\"219\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-parallel-flow-219x300.png\" \/><\/a><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-counter-flow.png\"><img loading=\"lazy\" class=\"aligncenter size-medium wp-image-21030 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-counter-flow-212x300.png\" alt=\"\u00e9changeur de chaleur - \u00e0 contre-courant\" width=\"212\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-exchanger-counter-flow-212x300.png\" \/><\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-accordion\">\n<div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-arrow\" data-anchor=\"References\">\n<div class=\"su-spoiler-content su-clearfix\">\n<p>&nbsp;<\/p>\n<\/div>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Cet article est bas\u00e9 sur la traduction automatique de l&#8217;article original en anglais. Pour plus d&#8217;informations, voir l&#8217;article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l&#8217;adresse: translations@nuclear-power.com ou remplissez le formulaire de traduction en ligne. Nous appr\u00e9cions votre aide, nous mettrons \u00e0 jour la traduction le plus rapidement possible. Merci<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00c9changeur de chaleur \u00e0 courant parall\u00e8le et \u00e0 contre-courant.\u00a0La figure repr\u00e9sente les directions d&#8217;\u00e9coulement du fluide dans les \u00e9changeurs en parall\u00e8le et \u00e0 contre-courant.\u00a0G\u00e9nie thermique \u00c9changeur de chaleur \u00e0 courant parall\u00e8le et \u00e0 contre-courant Les \u00e9changeurs de chaleur\u00a0sont g\u00e9n\u00e9ralement class\u00e9s en fonction de la disposition des flux et du type de construction.\u00a0L&#8217;\u00a0\u00e9changeur de chaleur le\u00a0plus &#8230; <a title=\"Qu&#8217;est-ce qu&#8217;un \u00e9changeur de chaleur \u00e0 flux parall\u00e8les et \u00e0 contre-courant &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-quun-echangeur-de-chaleur-a-flux-paralleles-et-a-contre-courant-definition\/\" aria-label=\"En savoir plus sur Qu&#8217;est-ce qu&#8217;un \u00e9changeur de chaleur \u00e0 flux parall\u00e8les et \u00e0 contre-courant &#8211; D\u00e9finition\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce qu&#039;un \u00e9changeur de chaleur \u00e0 flux parall\u00e8les et \u00e0 contre-courant - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"\u00c9changeur de chaleur \u00e0 courant parall\u00e8le et \u00e0 contre-courant. 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