Un \u00e9changeur de chaleur \u00e0 plaques marin fortement encrass\u00e9, d\u00e9mont\u00e9 du syst\u00e8me de refroidissement d'un navire de transport de marchandises, a \u00e9t\u00e9 soumis \u00e0 une validation de nettoyage. Le test Keertek a permis de r\u00e9tablir la capacit\u00e9 de d\u00e9bit et l'efficacit\u00e9 du transfert thermique \u00e0 des niveaux proches de ceux d'origine.
L'entartrage d\u00fb \u00e0 l'eau de mer et l'encrassement biologique avaient r\u00e9duit le rendement thermique de l'\u00e9changeur d'environ 35%, obligeant l'exploitant du navire \u00e0 recourir \u00e0 un syst\u00e8me de refroidissement auxiliaire, ce qui entra\u00eenait une augmentation des co\u00fbts de carburant. Le laboratoire de Keertek a utilis\u00e9 la cavitation ultrasonique \u00e0 haute puissance associ\u00e9e \u00e0 un produit chimique de d\u00e9tartrage l\u00e9g\u00e8rement acide \u2014 suffisamment agressif pour dissoudre les d\u00e9p\u00f4ts de calcium et de magn\u00e9sium, tout en restant sans danger pour les plaques en acier inoxydable.
Au terme d'un cycle de 30 minutes, tous les d\u00e9p\u00f4ts de tartre avaient \u00e9t\u00e9 \u00e9limin\u00e9s des canaux \u00e9troits des plaques. Le client a indiqu\u00e9 que les r\u00e9sultats de ces essais avaient directement motiv\u00e9 son achat d'une station de nettoyage par ultrasons Keertek pour son centre de maintenance en cale s\u00e8che.
Proc\u00e9d\u00e9 : ultrasons haute puissance + traitement chimique anti-tartre | Substrat : acier inoxydable | Contaminants : tartre marin et encrassement biologique<\/p>","protected":false},"excerpt":{"rendered":"
A heavily scaled marine plate heat exchanger, removed from a cargo vessel’s cooling system, was submitted for cleaning validation. The Keertek test restored flow capacity and heat transfer efficiency to near-original levels.Seawater scaling and biofouling had reduced the exchanger’s thermal efficiency by an estimated 35%, forcing the vessel operator to run auxiliary cooling at higher […]<\/p>\n","protected":false},"author":6,"featured_media":8533,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[79],"tags":[],"class_list":["post-8797","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-study"],"acf":[],"_links":{"self":[{"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/posts\/8797","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/comments?post=8797"}],"version-history":[{"count":0,"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/posts\/8797\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/media\/8533"}],"wp:attachment":[{"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/media?parent=8797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/categories?post=8797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/keertek.com\/fr\/wp-json\/wp\/v2\/tags?post=8797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}