{"id":529,"date":"2015-05-26T17:16:28","date_gmt":"2015-05-26T15:16:28","guid":{"rendered":"http:\/\/www.htflux.com\/en\/?p=529"},"modified":"2016-05-30T16:35:03","modified_gmt":"2016-05-30T14:35:03","slug":"window-frame-heating-system","status":"publish","type":"post","link":"https:\/\/www.htflux.com\/en\/window-frame-heating-system\/","title":{"rendered":"Designing a window frame heating"},"content":{"rendered":"<p>The following example demonstrates the possibilities of using the HTflux heat source feature. The task was to optimize a window frame heating for an indoor pool area. The aim of the heating cable design was firstly to avoid condensation at the floor section of the sliding door frame and secondly to prevent damage of the frame caused by freezing.<!--more--><\/p>\n<div id=\"attachment_534\" style=\"width: 677px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-indoor-pool-heating-materials.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-534\" class=\"wp-image-534 size-full-blog-width\" src=\"http:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-indoor-pool-heating-materials-667x546.png\" alt=\"Window-frame-heating-indoor-pool\" width=\"667\" height=\"546\" srcset=\"https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-indoor-pool-heating-materials-667x546.png 667w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-indoor-pool-heating-materials-300x246.png 300w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-indoor-pool-heating-materials.png 1024w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-indoor-pool-heating-materials-325x266.png 325w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-indoor-pool-heating-materials-100x82.png 100w\" sizes=\"auto, (max-width: 667px) 100vw, 667px\" \/><\/a><p id=\"caption-attachment-534\" class=\"wp-caption-text\">Material view of the indoor pool window frame with heating cables<\/p><\/div>\n<p>To solve these tasks best three double core heating cables will be installed inside different chambers of the aluminium frame. The external and internal climate conditions were set according to the anticipated values including a safety margin. Based on the internal conditions of 30\u00b0C\/65% RH the HTflux climate calculator tool was used to calculate a dew point temperature of 22.7\u00b0C.<\/p>\n<p>Now the HTflux heat-source feature can be used to simply define the thermal loads for the heating cables. In the example given a load of 30 watts for each of the three heating cables turned out to be sufficient to prevent condensation as well as freezing in the area of the aluminium frame.<\/p>\n<div id=\"attachment_533\" style=\"width: 677px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-heating-cable-temperature.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-533\" class=\"wp-image-533 size-full-blog-width\" src=\"http:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-heating-cable-temperature-667x546.png\" alt=\"window frame indoor pool freezing condensation\" width=\"667\" height=\"546\" srcset=\"https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-heating-cable-temperature-667x546.png 667w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-heating-cable-temperature-300x246.png 300w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-heating-cable-temperature.png 1024w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-heating-cable-temperature-325x266.png 325w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-heating-cable-temperature-100x82.png 100w\" sizes=\"auto, (max-width: 667px) 100vw, 667px\" \/><\/a><p id=\"caption-attachment-533\" class=\"wp-caption-text\">Thermal simulation of the indoor pool window frame with heating cables (hatched area is below freezing temperature)<\/p><\/div>\n<div id=\"attachment_531\" style=\"width: 677px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-condensation-pool-heat-flux.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-531\" class=\"wp-image-531 size-full-blog-width\" src=\"http:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-condensation-pool-heat-flux-667x546.png\" alt=\"heat flux window frame\" width=\"667\" height=\"546\" srcset=\"https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-condensation-pool-heat-flux-667x546.png 667w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-condensation-pool-heat-flux-300x246.png 300w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-condensation-pool-heat-flux.png 1024w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-condensation-pool-heat-flux-325x266.png 325w, https:\/\/www.htflux.com\/en\/wp-content\/uploads\/sites\/4\/2015\/05\/Window-frame-condensation-pool-heat-flux-100x82.png 100w\" sizes=\"auto, (max-width: 667px) 100vw, 667px\" \/><\/a><p id=\"caption-attachment-531\" class=\"wp-caption-text\">Heat flux view of the window frame area showing thermal bridging and the effect of the heating<\/p><\/div>\n<p>If required, a lot of further investigation could be done using the HTflux measurements tools,<br \/>\nsuch as:<\/p>\n<ul>\n<li>getting the maximum and minimum temperature of certain materials.<\/li>\n<li>determining the response time of the heating using the transient feature.<\/li>\n<li>creating a detailed function of the required heating power based on the external temperature.<\/li>\n<li>measuring the portion of heating power leaving to the exterior side.<\/li>\n<li>optimizing the heat loss to the exterior side.<\/li>\n<\/ul>\n<p>Special thanks to <a href=\"http:\/\/www.diebauphysiker.at\/\"><strong><em>rosenfelder &amp; h\u00f6fler, consulting engineers<\/em><\/strong><\/a> for providing this excellent example.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The following example demonstrates the possibilities of using the HTflux heat source feature. The task was to optimize a window frame heating for an indoor pool area. The aim of the heating cable design was firstly to avoid condensation at the floor section of the sliding door frame and secondly to prevent damage of the [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":532,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,6],"tags":[60,62,61,8,63,59,64],"class_list":["post-529","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-applications","category-news","tag-frame-heating","tag-heat-source","tag-heating-cable","tag-thermal-simulation","tag-window-condensation-pool","tag-window-frame","tag-window-frame-freezing"],"_links":{"self":[{"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/posts\/529","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/comments?post=529"}],"version-history":[{"count":9,"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/posts\/529\/revisions"}],"predecessor-version":[{"id":1069,"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/posts\/529\/revisions\/1069"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/media\/532"}],"wp:attachment":[{"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/media?parent=529"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/categories?post=529"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.htflux.com\/en\/wp-json\/wp\/v2\/tags?post=529"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}