{"id":145,"date":"2014-07-30T03:44:57","date_gmt":"2014-07-30T03:44:57","guid":{"rendered":"http:\/\/www.heatsinkcalculator.com\/blog\/?p=145"},"modified":"2015-06-14T03:22:15","modified_gmt":"2015-06-14T03:22:15","slug":"validation-of-the-calculator-results-natural-convection","status":"publish","type":"post","link":"https:\/\/www.heatsinkcalculator.com\/blog\/validation-of-the-calculator-results-natural-convection\/","title":{"rendered":"Validation of the Calculator Results (Natural Convection)"},"content":{"rendered":"<p>During the development for the Heat Sink Calculator the values calculated for a heat sink cooled via natural convection and radiation were compared against experimental data from work done by Yazicioglu [1] and Kharche et al [2]. The orientations of the base of the heat sinks investigated are shown below.<\/p>\n<p><a href=\"http:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/03\/heatSinkOrientation_blog_post3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-71 aligncenter\" src=\"http:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/03\/heatSinkOrientation_blog_post3.png\" alt=\"heatSinkOrientation\" width=\"314\" height=\"112\" srcset=\"https:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/03\/heatSinkOrientation_blog_post3.png 314w, https:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/03\/heatSinkOrientation_blog_post3-300x107.png 300w\" sizes=\"auto, (max-width: 314px) 100vw, 314px\" \/><\/a><\/p>\n<p>The experimental data for heat sinks under going natural convection\/radiation with the base in the vertical orientation is provided by Yazicioglu [1] . The graph below shows a comparison of the experimental data from\u00a0Yazicioglu [1] with results obtained from the Heat Sink Calculator for various fin spacings.<\/p>\n<p><a href=\"http:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/07\/vertical_nc_comparison.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-149\" src=\"http:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/07\/vertical_nc_comparison.png\" alt=\"vertical_nc_comparison\" width=\"651\" height=\"393\" srcset=\"https:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/07\/vertical_nc_comparison.png 651w, https:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/07\/vertical_nc_comparison-300x181.png 300w\" sizes=\"auto, (max-width: 651px) 100vw, 651px\" \/><\/a><br \/>\n<!--more continue>>--><br \/>\nSimilarly the experimental data for a heat sink undergoing natural convection\/radiation with the base in the horizontal orientation are compared against results from the Heat Sink Calculator in the graph below. In this case the heat source power input is varied and the heat sink dimensional parameters are kept constant. The experimental data are obtained from the work done by Kharche et al [2].<\/p>\n<p><a href=\"http:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/07\/hortizontal_nc_comparison.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-150\" src=\"http:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/07\/hortizontal_nc_comparison.png\" alt=\"hortizontal_nc_comparison\" width=\"487\" height=\"317\" srcset=\"https:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/07\/hortizontal_nc_comparison.png 487w, https:\/\/www.heatsinkcalculator.com\/blog\/wp-content\/uploads\/2014\/07\/hortizontal_nc_comparison-300x195.png 300w\" sizes=\"auto, (max-width: 487px) 100vw, 487px\" \/><\/a><\/p>\n<p>The calculated results are within 12% RMS and\u00a0 4% RMS for the base oriented in the vertical and horizontal orientations respectively.<\/p>\n<p><span style=\"text-decoration: underline;\">References:<br \/>\n<\/span>[1] B. Yazicioglu, &#8220;Performance of Rectangular Fins on a Vertical Base in Free Convection Heat Transfer&#8221;, A Thesis Submitted to The Graduate School of Natural And Applied Sciences of the Middle East Technical University, 2005<\/p>\n<p>[2] S.\u00a0Kharche, H.\u00a0Farkade, &#8220;Heat Transfer Analysis through Fin Arrays by Using Natural Convection&#8221;, in:\u00a0International Journal of Emerging Technology and Advanced Engineering, Volume 2, Issue 4, April 2012<\/p>\n","protected":false},"excerpt":{"rendered":"<p>During the development for the Heat Sink Calculator the values calculated for a heat sink cooled via natural convection and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-145","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/posts\/145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/comments?post=145"}],"version-history":[{"count":13,"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/posts\/145\/revisions"}],"predecessor-version":[{"id":390,"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/posts\/145\/revisions\/390"}],"wp:attachment":[{"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/media?parent=145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/categories?post=145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.heatsinkcalculator.com\/blog\/wp-json\/wp\/v2\/tags?post=145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}