{"id":6211,"date":"2018-02-23T15:15:42","date_gmt":"2018-02-23T14:15:42","guid":{"rendered":"https:\/\/www.tempco.it\/blog\/?p=6211\/"},"modified":"2018-02-25T14:52:22","modified_gmt":"2018-02-25T13:52:22","slug":"semiconductors-cooling-unit-at-cern","status":"publish","type":"post","link":"https:\/\/www.tempco.it\/blog\/en\/6211\/semiconductors-cooling-unit-at-cern\/","title":{"rendered":"Semiconductors cooling unit at CERN"},"content":{"rendered":"<p>Tempco provided the <strong>CERN in Geneva<\/strong> a <strong><a href=\"https:\/\/en.tempco.it\/solutions-en\/thermo-regulating-units\/\" target=\"_blank\" rel=\"noopener\">cooling unit<\/a> system<\/strong> for <a href=\"https:\/\/www.tempco.it\/blog\/en\/5885\/demineralized-water-how-it-is-thermoregulated\/\" target=\"_blank\" rel=\"noopener\"><strong>deionized water<\/strong><\/a> to be supplied to <strong>IGBT testing equipments<\/strong>. The IGBT are insulated-gate bipolar transistors, three-terminal power <strong>semiconductor<\/strong> devices primarily employed in high power applications, mounted on <strong>NPC converters<\/strong> (Neutral Point Clamped).<\/p>\n<p>The testing platform required is used in the CERN Technology department dedicated to EPC and PHC, Electric power converters and High power converters. The aim of the testing platform was to test damaged components after reparation before they are put back into operation in NPC <strong>power stacks converters<\/strong>. The Power stacks tester comprises two DC sources connected in series, with a cooling unit to provide the necessary water flow to cool the power stacks.<\/p>\n<p><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Tempco-unita\u0300-raffreddamento-CERN.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-6214\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Tempco-unita\u0300-raffreddamento-CERN.jpg\" alt=\"unit\u00e0 raffreddamento Cern acceleratore particelle\" width=\"1020\" height=\"682\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Tempco-unita\u0300-raffreddamento-CERN.jpg 1020w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Tempco-unita\u0300-raffreddamento-CERN-300x201.jpg 300w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Tempco-unita\u0300-raffreddamento-CERN-768x514.jpg 768w\" sizes=\"(max-width: 1020px) 100vw, 1020px\" \/><\/a><\/p>\n<p><!--more--><\/p>\n<p>Technical specifications required a <strong>water\/water cooling unit<\/strong> rated 40 kW, with water as cooling liquid on both primary and secondary side. A crucial element was the presence of a <strong>deionizing circuit<\/strong>, because the water on the secondary circuit gets directly in contact with the conductors. In addition, the cooling unit layout required the presence of some <strong>sensors<\/strong>, a flow rate sensor, a conductivity sensor and a temperature sensor on the output of the secondary circuit. As well as a pressure sensor placed in the vicinity of the expansion tank.<\/p>\n<p><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/raffreddamento-convertitori-IGBT-Cern.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-6207\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/raffreddamento-convertitori-IGBT-Cern.jpg\" alt=\"cooling unit power converters CERN\" width=\"758\" height=\"1020\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/raffreddamento-convertitori-IGBT-Cern.jpg 758w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/raffreddamento-convertitori-IGBT-Cern-223x300.jpg 223w\" sizes=\"(max-width: 758px) 100vw, 758px\" \/><\/a><\/p>\n<p>All parts in contact with the secondary circuit water have been realized in <strong>AISI 316<\/strong> stainless steel, and the same material was employed for all fittings and valves. EPDM elastomer has been employed for all gaskets.<\/p>\n<p><a href=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Cooling-unit-Cern-semiconduttori.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-large wp-image-6209\" src=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Cooling-unit-Cern-semiconduttori-1024x768.jpg\" alt=\"unit\u00e0 raffreddamento power converters CERN\" width=\"750\" height=\"563\" srcset=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Cooling-unit-Cern-semiconduttori-1024x768.jpg 1024w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Cooling-unit-Cern-semiconduttori-300x225.jpg 300w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Cooling-unit-Cern-semiconduttori-768x576.jpg 768w, https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/Cooling-unit-Cern-semiconduttori.jpg 1077w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/a><\/p>\n<p>CERN is the European organization for <strong>Nuclear research<\/strong> that designs, builds and operates <strong>particle accelerators<\/strong>, actually used by more than 11.000 scientific users from research institutes all over the world. The flagship of the accelerator complex at CERN is the Large Hadron Collider (LHC), the world\u2019s larger accelerator consisting of a 27 km ring of superconducting magnets and accelerating structures.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tempco provided the CERN in Geneva a cooling unit system for deionized water to be supplied to IGBT testing equipments. [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[64,76],"tags":[1083,773,1096,1095,1097,1089,1094,1102,1101,1088,1100,1103,1098,128,1099],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Semiconductors cooling unit at CERN - Tempco Blog<\/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.tempco.it\/blog\/en\/6211\/semiconductors-cooling-unit-at-cern\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Semiconductors cooling unit at CERN - Tempco Blog\" \/>\n<meta property=\"og:description\" content=\"Tempco provided the CERN in Geneva a cooling unit system for deionized water to be supplied to IGBT testing equipments. [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tempco.it\/blog\/en\/6211\/semiconductors-cooling-unit-at-cern\/\" \/>\n<meta property=\"og:site_name\" content=\"Tempco Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/tempco.srl\" \/>\n<meta property=\"article:published_time\" content=\"2018-02-23T14:15:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-02-25T13:52:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tempco.it\/blog\/wp-content\/uploads\/2018\/02\/raffreddamento-convertitori-IGBT-Cern.jpg\" \/>\n<meta name=\"author\" content=\"Marco Zambelli\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Tempco_it\" \/>\n<meta name=\"twitter:site\" content=\"@Tempco_it\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Marco Zambelli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.tempco.it\/blog\/en\/6211\/semiconductors-cooling-unit-at-cern\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.tempco.it\/blog\/en\/6211\/semiconductors-cooling-unit-at-cern\/\"},\"author\":{\"name\":\"Marco Zambelli\",\"@id\":\"https:\/\/www.tempco.it\/blog\/#\/schema\/person\/888443da8bdce0582bcb917053553fec\"},\"headline\":\"Semiconductors cooling unit at CERN\",\"datePublished\":\"2018-02-23T14:15:42+00:00\",\"dateModified\":\"2018-02-25T13:52:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.tempco.it\/blog\/en\/6211\/semiconductors-cooling-unit-at-cern\/\"},\"wordCount\":305,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.tempco.it\/blog\/#organization\"},\"keywords\":[\"CERN\",\"conductivity\",\"conductors\",\"cooling unit\",\"deionized water\",\"IGBT\",\"nuclear research\",\"particle accelerators\",\"power converters\",\"power stacks\",\"semiconductors\",\"sensors\",\"testing\",\"thermoregulation\",\"transistors\"],\"articleSection\":[\"Cooling\",\"Thermoregulation Unit\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.tempco.it\/blog\/en\/6211\/semiconductors-cooling-unit-at-cern\/\",\"url\":\"https:\/\/www.tempco.it\/blog\/en\/6211\/semiconductors-cooling-unit-at-cern\/\",\"name\":\"Semiconductors cooling unit at CERN - 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