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class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5416"><a href="https://www.svenskventilation.se/om-oss/var-organisation/styrgrupper/produkter/">Produkter</a></li> <li id="menu-item-5434" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5434"><a href="https://www.svenskventilation.se/om-oss/var-organisation/styrgrupper/marknad/">Marknad</a></li> <li id="menu-item-5418" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5418"><a href="https://www.svenskventilation.se/om-oss/var-organisation/styrgrupper/brand/">Brand</a></li> <li id="menu-item-5419" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5419"><a href="https://www.svenskventilation.se/om-oss/var-organisation/styrgrupper/utbildning/">Utbildning</a></li> </ul> </li> <li id="menu-item-5414" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5414"><a 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<li id="menu-item-5405" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5405"><a href="https://www.svenskventilation.se/om-oss/var-organisation/lokalavdelningar/syd/">Syd</a></li> <li id="menu-item-5406" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5406"><a href="https://www.svenskventilation.se/om-oss/var-organisation/lokalavdelningar/nord/">Nord</a></li> </ul> </li> <li id="menu-item-5451" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-5451"><a href="https://www.svenskventilation.se/om-oss/var-organisation/stadgar/">Stadgar</a> <ul class="sub-menu"> <li id="menu-item-5452" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-5452"><a href="https://www.svenskventilation.se/om-oss/var-organisation/stadgar/riktlinjer/">Riktlinjer</a></li> </ul> </li> </ul> </li> <li id="menu-item-5423" class="menu-item menu-item-type-post_type menu-item-object-page 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<p class="preamble">Den värme som finns i byggnaden, oavsett var den kommer ifrån, ska inte släppas rakt ut. Den ska återvinnas. En värmeväxlare med hög verkningsgrad gör att energikostnaderna hålls på en betydligt lägre nivå än de annars skulle varit på.</p> <p>Värmeåtervinning betyder helt enkelt att den uppvärmda frånluften hjälper till att värma upp den kalla tilluften som hämtas utifrån. Därigenom sparas mycket energi. Det finns idag ett antal olika typer av system för återvinning av värme ur frånluften. Hit kan exempelvis räknas:</p> <h2>Plattvärmeväxlaren</h2> <p><img loading="lazy" decoding="async" class="alignright size-full wp-image-822" src="https://wwwsvenskventila.cdn.triggerfish.cloud/uploads/2014/07/plattvarmevaxlare.jpg" alt="plattvarmevaxlare" width="212" height="150" />Korsströmsvärmeväxlare och motströmsvärmeväxlare, eller som de vanligtvis kallas, plattvärmeväxlare, är de vanligaste av de olika typer som finns på marknaden. De finns i första hand i enfamiljshus och i flerfamiljshus som har separata ventilationsanläggningar i varje lägenhet. Tekniken är enkel, där till- och frånluften passerar varandra i ett lamellpaket av veckade aluminiumplåtar. Den varma frånluften värmer upp aluminiumplåtar varvid den kalla tilluften tar upp värmen.<br /> Plattvärmeväxlare har verkningsgrader på cirka 60 – 90 %, där motströmsvärmeväxlarna ligger högst. Både kors- och motströmsvärmeväxlare kan upplevas som svåra att rengöra på grund av sin konstruktion.</p> <h2>Roterande värmeväxlare</h2> <h2><img loading="lazy" decoding="async" class="alignright wp-image-823 " src="https://wwwsvenskventila.cdn.triggerfish.cloud/uploads/2014/07/roterande-varmevaxlare-e1675093720724.jpg" alt="roterande-varmevaxlare" width="242" height="160" /></h2> <p>Den roterande värmeväxlaren är uppbyggd kring roterande hjul bestående av veckade aluminiumprofiler där den varma frånluften värmer upp rotorn, som därefter värmer upp den kalla tilluften. Systemet har många fördelar i jämförelse med andra lösningar. Trots detta förekommer den i mindre omfattning än korsströmsvärmeväxlaren. Detta beror till största delen på att det kan finnas en risk för överläckning av förorenad frånluft till luftbehandlingsaggregatets tilluftssida. Den roterande värmeväxlaren karakteriseras av låga tryckfall, vilket leder till låga fläkteffektbehov och därmed låg elenergianvändning i fläktarbetet. Den är förhållandevis enkel att rengöra samt har hög verkningsgrad, cirka 80 %.</p> <h2>Vätskekopplad värmeåtervinning</h2> <h1><img loading="lazy" decoding="async" class=" wp-image-9945 alignright" src="https://wwwsvenskventila.cdn.triggerfish.cloud/uploads/2023/02/Picture1-1.png" alt="" width="249" height="198" srcset="https://wwwsvenskventila.cdn.triggerfish.cloud/uploads/2023/02/Picture1-1.png 713w, https://wwwsvenskventila.cdn.triggerfish.cloud/uploads/2023/02/Picture1-1-300x239.png 300w" sizes="(max-width: 249px) 100vw, 249px" /></h1> <p>Det vätskekopplade systemet bygger på att en frysskyddad vätskelösning (ofta vårdslöst kallad ”brine”) cirkuleras mellan kyl- och värmebatterier placerade i frånluftssystemet respektive tilluftssystemet. Den varma frånluften värmer upp vätskan som avger värmen till den kalla tilluften.</p> <p>Systemet medger att till- och frånluftsaggregatet placeras oberoende av varandra, exempelvis kan tilluftsaggregatet stå i källaren medan frånluftsaggregatet placeras på vinden. Systemet är flexibelt och medger att flera återvinningsstationer i olika frånluftssystem kan installeras och sammanföras till ett gemensamt tilluftsbatteri. Systemet uppnår cirka 70 % verkningsgrad. Det används normalt i flerbostadshus och kan med fördel användas i renoverings- och kompletteringssammanhang.</p> </section> </div> </div> </div> </div> </div> </div> <footer id="colophon" role="contentinfo"> <div class="container"> <div class="row"> <aside id="text-2" class="widget widget_text"><h3>Adress</h3> <div class="textwidget"><p>Ringvägen 100<br /> Box 17154, 104 62 Stockholm</p> </div> </aside><aside id="text-3" class="widget widget_text"><h3>Kontakt</h3> <div class="textwidget"><p>Tel: <a href="tel:087627360">08-762 73 60</a><br /> E-post: <a href="mailto:info@svenskventilation.se" title="info@svenskventilation.se">info@svenskventilation.se</a><br /> <a href="https://www.svenskventilation.se/om-cookies/" title="Om cookies">Om cookies</a></p> </div> </aside> <aside class="widget widget_newsletter"> <div class="pull-right"> <h3>Anmäl dig till vårt nyhetsbrev, Kanalen</h3> <script type="text/javascript"></script> <div class='gf_browser_ie gf_browser_ie7 gform_wrapper 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Kontakta Svensk Ventilation för tilldelning av lösenord eller för att bli medlem. </div> <div class="error-row"> <i class="fa fa-exclamation-triangle"></i> Inloggningen misslyckades. 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