{"id":24082,"date":"2026-04-30T07:03:55","date_gmt":"2026-04-30T07:03:55","guid":{"rendered":"https:\/\/vakkimsa.com\/it\/blog\/2026\/07\/22\/industrial-mixing-and-heat-transfer\/"},"modified":"2026-07-22T08:11:27","modified_gmt":"2026-07-22T08:11:27","slug":"industrial-mixing-and-heat-transfer","status":"publish","type":"post","link":"https:\/\/vakkimsa.com\/it\/blog\/2026\/04\/30\/industrial-mixing-and-heat-transfer\/","title":{"rendered":"Industrial Mixing and Heat Transfer"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">The real challenge is effective temperature control<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In many mixing processes<strong>, heating or cooling time does not depend solely on the power available at the jacket or heat exchanger<\/strong>. The determining factor is the ability of the agitation system to continuously renew the product at the vessel wall, break down thermal gradients, and maintain a homogeneous temperature throughout the entire volume.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In practice, this is what separates an adequate process from a truly <strong>optimised <\/strong>one.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When working with medium, high, or very high viscosity products, the challenge increases significantly. The fluid&#8217;s resistance to movement prevents thermal energy from distributing uniformly, leading to \ud835\uddf0\ud835\uddfc\ud835\uddf9\ud835\uddf1 \ud835\ude07\ud835\uddfc\ud835\uddfb\ud835\uddf2\ud835\ude00, \ud835\uddf5\ud835\uddfc\ud835\ude01 \ud835\ude00\ud835\uddfd\ud835\uddfc\ud835\ude01\ud835\ude00, \ud835\uddfc\ud835\uddff \ud835\uddf6\ud835\uddfb\ud835\ude00\ud835\ude02\ud835\uddf3\ud835\uddf3\ud835\uddf6\ud835\uddf0\ud835\uddf6\ud835\uddf2\ud835\uddfb\ud835\ude01 \ud835\uddff\ud835\uddf2\ud835\uddf0\ud835\uddf6\ud835\uddff\ud835\uddf0\ud835\ude02\ud835\uddf9\ud835\uddee\ud835\ude01\ud835\uddf6\ud835\uddfc\ud835\uddfb. In these cases, having a heat exchange surface alone does not guarantee a good outcome: the mixing system must generate the appropriate flow pattern to promote heat transfer across the entire product volume.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">From a technical standpoint, the thermal cycle time of a process is typically governed by five key variables:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The rheology of the product and its evolution throughout the batch<\/li>\n\n\n\n<li>The vessel geometry and the ratio between impeller diameter and tank diameter<\/li>\n\n\n\n<li>The type of flow generated by the agitator: axial, radial, or mixed<\/li>\n\n\n\n<li>The operating speed and effective pumping capacity<\/li>\n\n\n\n<li>The system&#8217;s ability to renew the thermal boundary layer at the wall<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This is where impeller selection becomes most \ud835\uddf0\ud835\uddff\ud835\uddf6\ud835\ude01\ud835\uddf6\ud835\uddf0\ud835\uddee\ud835\uddf9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At Vak Kimsa, we offer a range of impellers and geometries suited to different viscosity ranges, pumping capacities, flow types, and process applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Double-motion<\/strong> paddle impellers operate with combined axial-radial flow, are designed for <strong>high-viscosity applications<\/strong>, and are our primary solution for <strong>homogenisation and blending<\/strong>. Anchor configurations with \ud835\ude04\ud835\uddee\ud835\uddf9\ud835\uddf9 \ud835\ude00\ud835\uddf0\ud835\uddff\ud835\uddee\ud835\uddfd\ud835\uddf2\ud835\uddff\ud835\ude00 are positioned for heat transfer applications at medium-to-high viscosities, and for very high viscosity products, counter-rotating agitators are clearly \ud835\ude01\ud835\uddf5\ud835\uddf2 \ud835\ude00\ud835\uddfc\ud835\uddf9\ud835\ude02\ud835\ude01\ud835\uddf6\ud835\uddfc\ud835\uddfb \ud835\uddf3\ud835\uddfc\ud835\uddff \ud835\uddef\ud835\uddfc\ud835\ude01\ud835\uddf5 \ud835\uddfa\ud835\uddf6\ud835\ude05\ud835\uddf6\ud835\uddfb\ud835\uddf4 \ud835\uddee\ud835\uddfb\ud835\uddf1 \ud835\uddf5\ud835\uddf2\ud835\uddee\ud835\ude01 \ud835\ude01\ud835\uddff\ud835\uddee\ud835\uddfb\ud835\ude00\ud835\uddf3\ud835\uddf2\ud835\uddff.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<h3 class=\"wp-block-heading\">We must consider what the expected process behaviour will be<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In viscous products, wall-proximity geometries \u2014 such as anchors, particularly with scrapers \u2014 improve product renewal at the heat exchange surface and help reduce local thermal resistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When the challenge combines high viscosity with the need for internal pumping and global homogenisation, mixed-flow configurations can deliver <strong>more efficient recirculation<\/strong> of the total volume, simultaneously improving heat exchange and batch uniformity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As \ud835\uddfa\ud835\uddf6\ud835\ude05\ud835\uddf6\ud835\uddfb\ud835\uddf4 \ud835\ude00\ud835\uddfd\ud835\uddf2\ud835\uddf0\ud835\uddf6\ud835\uddee\ud835\uddf9\ud835\uddf6\ud835\ude00\ud835\ude01\ud835\ude00 \ud835\ude00\ud835\uddf6\ud835\uddfb\ud835\uddf0\ud835\uddf2 \ud835\udfed\ud835\udff5\ud835\udff3\ud835\udfee, we can confirm that reducing heating or cooling time is rarely solved by \u00abapplying more temperature\u00bb or \u00abadding more power.\u00bb Real improvement comes from redesigning the interaction between agitation and heat transfer:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Increasing fluid renewal at the wall<\/li>\n\n\n\n<li>Minimising dead zones<\/li>\n\n\n\n<li>Improving vertical and radial recirculation<\/li>\n\n\n\n<li>Matching the impeller type to the actual viscosity of the product<\/li>\n\n\n\n<li>Combining in-tank agitation with inline mixing when the process requires it<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">At this point, the role of <strong>in-line mixing<\/strong> also becomes relevant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One example is the <strong>LIVAK <\/strong>emulsification unit, which \u2014 combined with double-motion or anchor-with-scraper agitators \u2014 enables significant reductions in batch cycle times for emulsion applications. With this approach to complex processes, thermal optimisation does not depend on a single piece of equipment, but on the integration of different mixing technologies.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/vakkimsa.com\/wp-content\/uploads\/sites\/5\/2026\/07\/1777370631190-1024x576.png\" alt=\"\" class=\"wp-image-24079\" srcset=\"https:\/\/vakkimsa.com\/it\/wp-content\/uploads\/sites\/5\/2026\/07\/1777370631190-1024x576.png 1024w, https:\/\/vakkimsa.com\/it\/wp-content\/uploads\/sites\/5\/2026\/07\/1777370631190-300x169.png 300w, https:\/\/vakkimsa.com\/it\/wp-content\/uploads\/sites\/5\/2026\/07\/1777370631190-768x432.png 768w, https:\/\/vakkimsa.com\/it\/wp-content\/uploads\/sites\/5\/2026\/07\/1777370631190.png 1488w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Where required, the combination of \ud835\uddf6\ud835\uddfb-\ud835\ude01\ud835\uddee\ud835\uddfb\ud835\uddf8 \ud835\uddee\ud835\uddf4\ud835\uddf6\ud835\ude01\ud835\uddee\ud835\ude01\ud835\uddf6\ud835\uddfc\ud835\uddfb + \ud835\uddf6\ud835\uddfb-\ud835\uddf9\ud835\uddf6\ud835\uddfb\ud835\uddf2 \ud835\uddfa\ud835\uddf6\ud835\ude05\ud835\uddf6\ud835\uddfb\ud835\uddf4 + \ud835\uddee\ud835\ude02\ud835\ude01\ud835\uddfc\ud835\uddfa\ud835\uddee\ud835\ude01\ud835\uddf2\ud835\uddf1 \ud835\uddf1\ud835\uddfc\ud835\ude00\ud835\uddf6\ud835\uddfb\ud835\uddf4 + \ud835\uddfd\ud835\uddff\ud835\uddfc\ud835\uddf0\ud835\uddf2\ud835\ude00\ud835\ude00 \ud835\uddf0\ud835\uddfc\ud835\uddfb\ud835\ude01\ud835\uddff\ud835\uddfc\ud835\uddf9 is the formula for achieving optimal results in batch manufacturing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The most common applications our clients have requested include emulsification, pasteurisation, cooling, deaeration, as well as \ud835\uddf5\ud835\uddfc\ud835\uddfa\ud835\uddfc\ud835\uddf4\ud835\uddf2\ud835\uddfb\ud835\uddf6\ud835\ude00\ud835\uddee\ud835\ude01\ud835\uddf6\ud835\uddfc\ud835\uddfb, \ud835\uddf5\ud835\uddf2\ud835\uddee\ud835\ude01 \ud835\ude01\ud835\uddff\ud835\uddee\ud835\uddfb\ud835\ude00\ud835\uddf3\ud835\uddf2\ud835\uddff, and <strong>deaeration of high-viscosity sauces<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For this reason, when a process takes too long to heat or cool, the correct technical question is not simply: <em>what thermal power do we have available?<\/em><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">The real question is: <em>are we moving the product in the right way so that this energy is transferred with maximum efficiency?<\/em><\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"578\" src=\"https:\/\/vakkimsa.com\/wp-content\/uploads\/sites\/5\/2026\/07\/agitator-vak-kimsa-Industrial-Mixing-and-Heat-Transfer-1024x578.png\" alt=\"\" class=\"wp-image-24080\" srcset=\"https:\/\/vakkimsa.com\/it\/wp-content\/uploads\/sites\/5\/2026\/07\/agitator-vak-kimsa-Industrial-Mixing-and-Heat-Transfer-1024x578.png 1024w, https:\/\/vakkimsa.com\/it\/wp-content\/uploads\/sites\/5\/2026\/07\/agitator-vak-kimsa-Industrial-Mixing-and-Heat-Transfer-300x169.png 300w, https:\/\/vakkimsa.com\/it\/wp-content\/uploads\/sites\/5\/2026\/07\/agitator-vak-kimsa-Industrial-Mixing-and-Heat-Transfer-768x433.png 768w, https:\/\/vakkimsa.com\/it\/wp-content\/uploads\/sites\/5\/2026\/07\/agitator-vak-kimsa-Industrial-Mixing-and-Heat-Transfer.png 1260w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Optimising thermal cycle time means optimising the process<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">More homogeneity, greater batch-to-batch repeatability, lower specific energy consumption, and increased production capacity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This type of optimisation is only reliable when the system is dimensioned based on the \ud835\uddfd\ud835\uddff\ud835\uddfc\ud835\uddf1\ud835\ude02\ud835\uddf0\ud835\ude01\u2013\ud835\uddfd\ud835\uddff\ud835\uddfc\ud835\uddf0\ud835\uddf2\ud835\ude00\ud835\ude00 \ud835\uddfd\ud835\uddee\ud835\uddf6\ud835\uddff\ud835\uddf6\ud835\uddfb\ud835\uddf4. At Vak Kimsa, we have tools such as \ud835\udde9\ud835\uddd4\ud835\uddde\ud835\uddd6\ud835\uddd4\ud835\udddf for impeller sizing, \ud835\uddd4\ud835\udde1\ud835\udde6\ud835\uddec\ud835\udde6 \ud835\uddf0\ud835\uddfc\ud835\uddfa\ud835\uddfd\ud835\ude02\ud835\ude01\ud835\uddee\ud835\ude01\ud835\uddf6\ud835\uddfc\ud835\uddfb\ud835\uddee\ud835\uddf9 \ud835\uddf3\ud835\uddf9\ud835\ude02\ud835\uddf6\ud835\uddf1 \ud835\uddf1\ud835\ude06\ud835\uddfb\ud835\uddee\ud835\uddfa\ud835\uddf6\ud835\uddf0\ud835\ude00 \ud835\ude00\ud835\uddf6\ud835\uddfa\ud835\ude02\ud835\uddf9\ud835\uddee\ud835\ude01\ud835\uddf6\ud835\uddfc\ud835\uddfb\ud835\ude00, and validation through pilot plant and industrial-scale testing platforms.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p class=\"wp-block-paragraph\">If you would like to explore how we approach mixing and heat transfer optimisation from a holistic process perspective, <a href=\"https:\/\/vakkimsa\/contactar\/\">contact us<\/a> and we will get to work!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/vakkimsa.com\/\">vakkimsa.com<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In many mixing processes, heating or cooling time does not depend solely on the power available at the jacket or heat exchanger. <\/p>\n","protected":false},"author":8,"featured_media":24081,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"editor_notices":[],"footnotes":""},"categories":[101],"tags":[108,109,103,110,111,112,113],"class_list":["post-24082","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article","tag-agitators","tag-heattransfermixers","tag-highviscosity","tag-industrialmixing","tag-livak","tag-viscosity","tag-wallscrapers"],"acf":[],"_links":{"self":[{"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/posts\/24082","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/comments?post=24082"}],"version-history":[{"count":1,"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/posts\/24082\/revisions"}],"predecessor-version":[{"id":24083,"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/posts\/24082\/revisions\/24083"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/media\/24081"}],"wp:attachment":[{"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/media?parent=24082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/categories?post=24082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vakkimsa.com\/it\/wp-json\/wp\/v2\/tags?post=24082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}