{"id":116,"date":"2019-04-04T09:01:48","date_gmt":"2019-04-04T06:01:48","guid":{"rendered":"http:\/\/marifetustada.com\/?p=116"},"modified":"2019-04-04T09:01:48","modified_gmt":"2019-04-04T06:01:48","slug":"isi-yalitimda-isil-direnc","status":"publish","type":"post","link":"https:\/\/marifetustada.com\/?p=116","title":{"rendered":"Is\u0131 Yal\u0131t\u0131mda Is\u0131l Diren\u00e7"},"content":{"rendered":"\n<p style=\"text-align:justify;\">Is\u0131n\u0131n\nyay\u0131l\u0131m\u0131 3 ana \u015fekilde meydana gelmektedir. Bunlardan ilki \u201c<strong>\u0130letim<\/strong>\u201ddir. Kat\u0131lar aras\u0131ndaki \u0131s\u0131\ntransferi iletimle ger\u00e7ekle\u015fir. \u0130kinci yol ise \u201c<strong>Ta\u015f\u0131n\u0131m<\/strong>\u201dd\u0131r. S\u0131v\u0131 ve gazlar aras\u0131ndaki \u0131s\u0131 transfer yoludur. \u00dc\u00e7\u00fcnc\u00fc\nolarak da \u201c<strong>I\u015f\u0131n\u0131m<\/strong>\u201d, yani\nelektromagnetik dalga boyutunda ba\u015fka bir tabir ile radyasyon yoluyla yay\u0131lan\n\u0131s\u0131n\u0131n yay\u0131lmas\u0131n\u0131 temsil eder. Prensip olarak t\u00fcm bu yollarla yay\u0131lan \u0131s\u0131n\u0131n\nbir ortamdan di\u011ferine do\u011fru ge\u00e7i\u015fini engelleyebilmek i\u00e7in iki ortam aras\u0131nda\nbo\u015fluklu ya da havas\u0131z bir katman olu\u015fturmak gerekmektedir. \u00d6rne\u011fin \u0131s\u0131\nyal\u0131t\u0131m\u0131 sa\u011flayan camlarda, iki cam aras\u0131nda havas\u0131 vakumlanm\u0131\u015f bir bo\u015fluk s\u00f6z\nkonusudur. Is\u0131 yal\u0131t\u0131m\u0131 ama\u00e7l\u0131 kullan\u0131lan polistren ya da mineral esasl\u0131\nyal\u0131t\u0131m levhalar\u0131n\u0131n i\u00e7erisinde de \u0131s\u0131 ge\u00e7i\u015fini en aza indirecek \u015fekilde durdun\nhava hapsolmu\u015ftur. Tabi bahsi ge\u00e7en bu \u0131s\u0131 yal\u0131t\u0131m levhalar\u0131n\u0131n belli\n\u00f6zelliklere de sahip olmalar\u0131 \u00f6nemlidir. Bu \u00f6zelliklerin ba\u015f\u0131nda da d\u00fc\u015f\u00fck \u0131s\u0131\niletkenlik katsay\u0131s\u0131 gelmektedir.<\/p>\n\n\n\n<p style=\"text-align:justify;\">Is\u0131\niletkenlik katsay\u0131s\u0131 (\u03bb) 0,065 W\/mK de\u011ferinin alt\u0131nda olan ve ilgili \u0131s\u0131\nyal\u0131t\u0131m malzemesi standard\u0131na g\u00f6re bu \u00f6zelli\u011fini belgelendiren malzemeler \u0131s\u0131\nyal\u0131t\u0131m malzemesi olarak s\u0131n\u0131fland\u0131r\u0131labilir.<\/p>\n\n\n\n<p style=\"text-align:justify;\"><strong>\u00a0<\/strong>Is\u0131 iletkenlik katsay\u0131s\u0131 d\u00fc\u015f\u00fck olan \u00fcr\u00fcn daha y\u00fcksek \u0131s\u0131 yal\u0131t\u0131m\u0131 sa\u011flar denilebilir. <\/p>\n\n\n\n<p style=\"text-align:justify;\">Tabi burada\nbir tek kriter \u0131s\u0131 iletkenlik katsay\u0131s\u0131 <strong>(\u03bb)<\/strong>\nda de\u011fildir. Bir \u0131s\u0131 yal\u0131t\u0131m malzemesinin performans\u0131 kullan\u0131laca\u011f\u0131 kal\u0131nl\u0131kla\nda do\u011fru orant\u0131l\u0131d\u0131r.<\/p>\n\n\n\n<p style=\"text-align:justify;\"><strong>Is\u0131l diren\u00e7 (R) de\u011feri, <\/strong>kullan\u0131lan\nyal\u0131t\u0131m malzemesinin performans\u0131 ve di\u011fer malzemeler ile k\u0131yas\u0131 konusunda\nbizlere en net bilgiyi veren kriterdir.<\/p>\n\n\n\n<p><strong>Is\u0131l Diren\u00e7 =\nKal\u0131nl\u0131k (m) \/ Is\u0131 iletkenlik katsay\u0131s\u0131 (W\/mK)<\/strong><\/p>\n\n\n\n<p style=\"text-align:justify;\">olarak\nifade edilmektedir. Is\u0131l diren\u00e7 ne kadar b\u00fcy\u00fck ise o \u0131s\u0131 yal\u0131t\u0131m malzemesi\nuygulanan kal\u0131nl\u0131\u011f\u0131 baz al\u0131nd\u0131\u011f\u0131nda o derece y\u00fcksek \u0131s\u0131 yal\u0131t\u0131m\u0131 sa\u011flar\ndenilebilmektedir.<\/p>\n\n\n\n<p style=\"text-align:justify;\">Basit bir hesapla size farkl\u0131\nmalzemelerin \u0131s\u0131 yal\u0131t\u0131m performans farklar\u0131n\u0131 ifade edebiliriz:<\/p>\n\n\n\n<p style=\"text-align:justify;\"><strong>Is\u0131\nge\u00e7irgenlik direnci R = kal\u0131nl\u0131k (m) \/ \u0131s\u0131 iletkenlik katsay\u0131s\u0131 (W\/mK) <\/strong>oldu\u011funa\ng\u00f6re;<\/p>\n\n\n\n<p style=\"text-align:justify;\">farkl\u0131 malzemeler aras\u0131nda \u0131s\u0131 yal\u0131t\u0131m performanslar\u0131n\u0131 k\u0131yaslad\u0131\u011f\u0131m\u0131zda, R de\u011feri b\u00fcy\u00fck olan \u00fcr\u00fcn o kal\u0131nl\u0131kta \u0131s\u0131y\u0131 da daha iyi bir \u015fekilde yal\u0131t\u0131m yapt\u0131 diyebiliriz. <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>6 cm standart beyaz EPS&#8217;nin \u0131s\u0131 ge\u00e7irgenlik direnci <strong>R = 0,06 \/ 0,04 = 1,50\u00a0 m\u00b2K\/W<\/strong> <\/li><li>6 cm Karbonlu EPS\u2019 nin \u0131s\u0131 ge\u00e7irgenlik direnci <strong>R = 0,06 \/ 0,035 = 1,71<\/strong> <strong>m\u00b2K\/W<\/strong><\/li><\/ul>\n\n\n\n<p style=\"text-align:justify;\">Bu hesap neticesinde, ayn\u0131 kal\u0131nl\u0131ktaki Karbonlu EPS Is\u0131 Yal\u0131t\u0131m Levhas\u0131n\u0131n, kendi s\u0131n\u0131f\u0131nda olan standart beyaz EPS Levhalara g\u00f6re <strong>%20<\/strong> <strong>daha \u00fcst\u00fcn yal\u0131t\u0131m performans\u0131<\/strong> sa\u011flad\u0131\u011f\u0131 g\u00f6r\u00fclmektedir. Hatta 6 cm EPS yerine 5cm Karbonlu EPS\u2019 nin kullan\u0131ld\u0131\u011f\u0131 bir \u0131s\u0131 yal\u0131t\u0131m uygulamas\u0131nda, \u0131s\u0131 yal\u0131t\u0131m performans\u0131n\u0131n ayn\u0131 kald\u0131\u011f\u0131 bu hesaplamalar ile ispatlanm\u0131\u015ft\u0131r<\/p>\n\n\n\n<p style=\"text-align:justify;\">Bu hesaba\ndayanarak, \u0131s\u0131 yal\u0131t\u0131m\u0131 malzemesi s\u0131n\u0131f\u0131na giren ve d\u00fc\u015f\u00fck \u0131s\u0131 iletkenlik\nkatsay\u0131s\u0131na sahip bir \u00fcr\u00fcn\u00fc tercih etti\u011finiz takdirde, g\u00fcvenli ve ger\u00e7ek\nanlamda \u0131s\u0131 yal\u0131t\u0131m\u0131n\u0131 t\u00fcm faydalar\u0131n\u0131 hayat\u0131n\u0131za kataca\u011f\u0131n\u0131z bir tercih yapm\u0131\u015f\nolacaks\u0131n\u0131z.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Is\u0131n\u0131n yay\u0131l\u0131m\u0131 3 ana \u015fekilde meydana gelmektedir. Bunlardan ilki \u201c\u0130letim\u201ddir. Kat\u0131lar aras\u0131ndaki \u0131s\u0131 transferi iletimle ger\u00e7ekle\u015fir. \u0130kinci yol ise \u201cTa\u015f\u0131n\u0131m\u201dd\u0131r. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":284,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[43,73,89,97,101,103,192,193,195,196,105,114,135,136,171,172,174,177,188,189],"class_list":["post-116","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-convection","tag-eps","tag-heat-conduction","tag-iletkenlik","tag-insulation","tag-izolasyon","tag-isi","tag-isi-yalitim","tag-isil-direnc","tag-isinim","tag-karbonlu","tag-mantolama","tag-r-degeri","tag-radiation","tag-tasinim","tag-teknik-bilgi","tag-thermal-resistance","tag-transmission","tag-yalitim","tag-yalitim-kalinligi"],"_links":{"self":[{"href":"https:\/\/marifetustada.com\/index.php?rest_route=\/wp\/v2\/posts\/116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marifetustada.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/marifetustada.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/marifetustada.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/marifetustada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=116"}],"version-history":[{"count":0,"href":"https:\/\/marifetustada.com\/index.php?rest_route=\/wp\/v2\/posts\/116\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/marifetustada.com\/index.php?rest_route=\/wp\/v2\/media\/284"}],"wp:attachment":[{"href":"https:\/\/marifetustada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/marifetustada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/marifetustada.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}