{"id":11917,"date":"2016-05-18T12:00:00","date_gmt":"2016-05-18T09:00:00","guid":{"rendered":"https:\/\/vo.afonico-test.ru\/novosti-otrasli\/iter-cryoplant-tanks-ready-for-shipment\/"},"modified":"2016-05-18T12:00:00","modified_gmt":"2016-05-18T09:00:00","slug":"iter-cryoplant-tanks-ready-for-shipment","status":"publish","type":"post","link":"https:\/\/vosafety.ru\/en\/novosti-otrasli\/iter-cryoplant-tanks-ready-for-shipment\/","title":{"rendered":"Iter cryoplant tanks ready for shipment"},"content":{"rendered":"<h4><strong>The two biggest tanks for the Iter fusion reactor\u2019s cryoplant have been completed in the Czech Republic. An exceptional convoy will be required to transport them to the Iter construction site in southern France.<\/strong><\/h4>\n<p>The quench tanks measure 35\u00a0meters in length, 4.5\u00a0meters in diameter and weighing about 160\u00a0tonnes. They were produced by French gas technology company Air Liquide and its subcontractor Chart Ferox. Air Liquide was awarded a contract in May 2014\u00a0by Iter\u2019s European domestic agency, Fusion for Energy (F4E), for the engineering, procurement, installation and testing of the tokamak reactor\u2019s cryoplant. The contract was worth some \u20ac65\u00a0million ($74\u00a0million). Manufacture of the two tanks began at Chart Ferox\u2019s facility in Decin in the Czech Republic last August and was completed recently.<\/p>\n<p>The cryoplant produces and distributes the cooling power needed to cool the fusion reactor\u2019s magnets, thermal shields and cryopumps. The plasma within the Iter reactor is expected to reach 150\u00a0million \u00b0C. Cold helium will be circulated inside the reactor\u2019s superconducting magnets to bring their temperature down to -269\u00b0C.<\/p>\n<p>However, the magnets may occasionally experience a so-called \u2019quench\u2019. This is when they stop superconducting, become more resistant and increase in temperature by about 50\u00b0C. With reduced magnetic performance it is no longer possible to confine the plasma. As the temperature rises, the helium circulating through the cryogenic system starts to expand and is therefore diverted to the quench tanks where it is stored at -196\u00b0C.<\/p>\n<p>Europe is providing Iter\u2019s Liquid Nitrogen Plant and auxiliary systems that will cool down, process, store, transfer and recover the cryogenic fluids of the machine. Two nitrogen refrigerators will cool down Iter\u2019s Liquid Helium Plant and two helium loop boxes. They will also supply the purification system, quench tanks, heaters and dryers with nitrogen in liquid or gaseous form. The two helium loops will cool down the thermal shields of the cryostat, vacuum vessel and regenerate the cryopumps. Some 8kg of helium will be processed per second. A helium purification system is planned to recover and clean helium gas from any impurities.<\/p>\n<p>Construction work on Iter began in 2010\u00a0and is expected to come to an end in 2019. A commissioning phase will follow that will ensure all systems operate together and prepare the machine for the achievement of first plasma in November 2020. The facility is expected to reach full operation in 2027. Iter\u2019s operational phase is expected to last for 20\u00a0years.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The two biggest tanks for the Iter fusion reactor\u2019s cryoplant have been completed in the Czech Republic. An exceptional convoy will be required to transport them to the Iter construction site in southern France. The quench tanks measure 35\u00a0meters in length, 4.5\u00a0meters in diameter and weighing about 160\u00a0tonnes. They were produced by French gas technology&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-11917","post","type-post","status-publish","format-standard","hentry","category-novosti-otrasli"],"translation":{"provider":"WPGlobus","version":"3.0.6","language":"en","enabled_languages":["ru","en"],"languages":{"ru":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false}}},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.5 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Iter cryoplant tanks ready for shipment - JSC \u201cVO \u201cSafety\u201d<\/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:\/\/vosafety.ru\/novosti-otrasli\/iter-cryoplant-tanks-ready-for-shipment\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Iter cryoplant tanks ready for shipment - 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