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Bâtiment PF Atelier Cryostat Le Siège d'ITER Fosse du Tokamak Fondations du Tokamak Bâtiment d'Assemblage Bâtiment et emprise Assemblage de la machine Métrologie optique Des outils dédiés | |||
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Pour lire les nouvelles en français, veuillez consulter "Les Actualités d'ITER", disponible ici...
 Academician Velikhov and ITER DG Kaname Ikeda after the signature of Procurement Arrangement #32 for the High Heat Flux Testing of ITER's Plasma-Facing Components.  Divertor Thermal Fatigue Test Facility under construction at the Efremov Institute in St. Petersburg. The testing of the PFCs will be performed at a new facility under construction at the Efremov Institute in St. Petersburg by means of a powerful 800,000 watt electron-beam-gun. Electrons will be accelerated through an applied voltage of 60 kV. The energy that is released when they strike the targets simulates the heat delivered by the plasma to the surfaces of the PFCs. ITER's PFCs are designed to cope with heat loads of up to 20 megawatts per square metre. "From an engineering point of view that might sound painful," says Mario Merola, ITER's Internal Components Division Head. "On the other hand, heat from the plasma is exactly what we want." To withstand the extreme thermal loads is not the only challenge for the PFCs. Thermal fatigue due to the high number of operating cycles (several thousands) is another. The heat flux tests will thus be performed in so called on/off cycles in order to assess the thermal fatigue of the components. The assessment of the behaviour of PFCs under cycling heat loads is essential to demonstrating their fitness for the purpose of the ITER machine. The value of this Procurement Arrangement is EUR 12,38 million. << return to Newsline #120 |
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