{"id":842,"date":"2012-04-12T14:28:43","date_gmt":"2012-04-12T12:28:43","guid":{"rendered":"http:\/\/www.expo21xx.com\/news\/?p=842"},"modified":"2012-04-12T14:31:57","modified_gmt":"2012-04-12T12:31:57","slug":"hybrid-coolers-ensure-efficiency-in-oil-cooling","status":"publish","type":"post","link":"https:\/\/www.expo21xx.com\/news\/hybrid-coolers-ensure-efficiency-in-oil-cooling\/","title":{"rendered":"Hybrid coolers ensure efficiency in oil cooling"},"content":{"rendered":"<p><strong>Fire engines, gearbox manufacturers, wood working, mechanical engineering, in fact anywhere where oils are used, there is cooling. This is why the <a title=\"hybrid oil cooler\" href=\"http:\/\/www.expo21xx.com\/fluid21xx\/3550_st2_hydraulic-systems\/\" target=\"_blank\">hybrid oil cooler<\/a> from Universal Hydraulik comes in many differed versions.\u00a0<\/strong><\/p>\n<div id=\"attachment_847\" class=\"wp-caption alignright\" style=\"width: 311px\"><a href=\"http:\/\/www.expo21xx.com\/news\/2012\/04\/hybrid-coolers-ensure-efficiency-in-oil-cooling\/attachment\/1\/\" rel=\"attachment wp-att-847\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-847\" title=\"The portfolio of hybrid coolers is extremely big\" src=\"http:\/\/www.expo21xx.com\/news\/wp-content\/uploads\/1.jpg\" alt=\"hybrid coolers\" width=\"311\" height=\"259\" srcset=\"https:\/\/www.expo21xx.com\/news\/wp-content\/uploads\/1.jpg 311w, https:\/\/www.expo21xx.com\/news\/wp-content\/uploads\/1-300x249.jpg 300w\" sizes=\"auto, (max-width: 311px) 100vw, 311px\" \/><\/a><p class=\"wp-caption-text\">Photo by Universal Hydraulik GmbH<\/p><\/div>\n<p>It is something of a speciality of the company based in Neu-Anspach near Frankfurt: the hybrid cooler. With the combination of a tubular heat exchanger and plate heat exchanger, Universal Hydraulik has made a name for itself in the industry. The special innovation here was to fit a shell &amp; tube heat exchange with fins in order to significantly increase the surface of the cooler. It was therefore possible to reduce the size of the component and market it at a lower price.<\/p>\n<p>The efficiency compared to the classic tubular heat exchanger is so high that the same output can be achieved with 50% of the size \u2013 which in turn allows greater flexibility in design for mechanical engineers. The efficiency of the cooler thus meets the increased requirement in mechanical engineering for saving energy.<\/p>\n<p>\u201cThe trend towards energy efficiency also affects us as manufacturers of heat exchangers, as increased cooling is required to achieve this\u201d, explains Michael Uhl, junior manager and son of the company\u2019s founder Ralf Uhl. \u201cWe have been very successful with this concept, which we have expanded considerably over the past few years.\u201d The main market for Universal Hydraulik is still Germany.<\/p>\n<p>However, the fluid industry is also affected by globalisation, which means that coolers from Hessen are increasingly being installed in Asia or South America \u2013 with interesting impacts on product development.<\/p>\n<p><strong>One step back to go two steps forward<\/strong><br \/>\n\u00a0A problem often overlooked is the quality of water in the fast developing emerging countries. There are now a very large number of machine manufacturers who are coming up against extremely poor water conditions in South America or Asia.<\/p>\n<p>The result: the water side of the cooler gets blocked very quickly, be it a plate or tubular plate heat exchanger. \u201cThe oil side does not pose a problem; this is still as clean as it was to start with, even after 20 years\u201d, stresses Michael Uhl. The objective of the entire mechanical engineering industry is to optimise the technology, he explains. The oil side is no longer a problem thanks to the multiple and finer filters, improved oils and proportional valves, he confirms. However, mechanical engineers have absolutely no control over the water side, he admits. \u201cWe build a press for several million euros, install great technology in it and it is then connected to the end customer\u2019s mains and water supply. And if the customer has dirty or aggressive water, then at some point it will damage the cooler and the mechanical engineer will be approached by the end customer with the complaint that his machine has not lasted\u201d, says Uhl, describing a typical scenario. As little emphasis is placed on the water side in terms of treatment or filtration in the new markets, Universal Hydraulik now offers suitable products for these ambient conditions. The tube diameter of the hybrid heat exchangers has been increased from four to ten millimetres to avoid a blockage of the water side. In principle this is technically a small backward step, as it represents a departure from the optimum performance ratio on the oil\/water side in order to take account of the poor operating conditions. It makes sense though: although the cooler is a rather small component within a machine, it can have a major impact on the reliability of the system as a whole.<\/p>\n<p><strong>Outlook<\/strong><br \/>\nUniversal Hydraulik has put itself in a strong position with the hybrid cooler. The product portfolio is continuously being expanded, as a result of which cooling capacities of 2 &#8211; 2000 kW are now possible. The installation sizes vary from diameters of 65 &#8211; 325 mm with lengths of up to 3000 mm. Variable designs, connections and materials and optional bypass valves mean that there is a huge selection of products to choose from.<\/p>\n<p>Universal Hydraulik used to build hydraulic systems and only turned to manufacturing coolers later. In addition to cooler components, it therefore also offers complete cooling filter systems that customers can incorporate into their system. \u201cWe design the system to meet the customer\u2019s needs\u201d confirms Michael Uhl. \u201cEven to the extent that the customer provides us with his construction drawing, and we design our system specifically for this component.\u201d That is a useful synergy of experience in plant engineering and the construction of components. Uhl also sees the company\u2019s history as another advantage: \u201cWe come from the hydraulics sector. We are familiar with the customer\u2019s system and can choose products with a far greater degree of care and precision for the customer.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fire engines, gearbox manufacturers, wood working, mechanical engineering, in fact anywhere where oils are used, there is cooling. This is why the hybrid oil cooler from Universal Hydraulik comes in many differed [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":847,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[76],"class_list":["post-842","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hydraulic-pneumatic","tag-hybrid"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hybrid coolers ensure efficiency in oil cooling - EXPO21XX.com NEWS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.expo21xx.com\/news\/hybrid-coolers-ensure-efficiency-in-oil-cooling\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Patrik Wolters\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.expo21xx.com\/news\/hybrid-coolers-ensure-efficiency-in-oil-cooling\/\",\"url\":\"https:\/\/www.expo21xx.com\/news\/hybrid-coolers-ensure-efficiency-in-oil-cooling\/\",\"name\":\"Hybrid coolers ensure efficiency in oil cooling - 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