Speaker
Maxim Sviridenko
(JSC NIKIET)
Description
The JSC NIKIET is responsible for the manufacture of the First Wall (FW) beam, the fingers bodies, the mechanical attachment system and electrical connection system of the FW panel to the shield block (SB) in the framework of Procurement Arrangement 1.6.Р1А.RF.01 dated 14.02.2014.
The Electrical strap (ES) is located on the FW rear surface and used for providing current through the FW to the SB and further to the Vacuum Vessel with a goal to reduce the current loops and consequently to decrease the electromagnetic loads acting on the FW during plasma disruption. The NIKIET specialists developed the new design of the electrical strap which has been implemented into the FW design. EDM cutting is used for performing the 1.2 mm thickness lamellas in the solid blank. Also a bimetallic pedestal has been added into the FW rear surface in order to provide the required electrical and thermal contact between ES and the FW. The bimetallic pedestal with 3 mm CuCrZr layer has been performed by weld deposition.
This paper presents the design description of the EHF FW ES and FW bimetallic pedestal, results of thermal and structural analyses and first experience of mockup manufacturing that were performed by JSC NIKIET specialists in 2015.
Co-authors
Alexander Romannikov
(Institution “Project Center ITER”, 123182, Square of Academic Kurchatov 1, Moscow, Russian Federation)
Alexey Bushkov
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
Alexey Razmerov
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
Andrey Leshukov
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
Barbara Calcagno
(ITER Organization, Route de Vinon sur Verdon CS 90 046 - 13067 Saint Paul, France)
Ivan Poddubnyi
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
Konstantin Egorov
(ITER Organization, Route de Vinon sur Verdon CS 90 046 - 13067 Saint Paul, France)
Maxim Sviridenko
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
Rene Raffray
(ITER Organization, Route de Vinon sur Verdon CS 90 046 - 13067 Saint Paul, France)
Russell Eaton
(ITER Organization, Route de Vinon sur Verdon CS 90 046 - 13067 Saint Paul, France)
Sergey Kirillov
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
Valery Safronov
(Institution “Project Center ITER”, 123182, Square of Academic Kurchatov 1, Moscow, Russian Federation)
Vladimir Kolganov
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
Vladimir Yolkin
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
Yuri Strebkov
(JSC NIKIET, 107140, Malaya Krasnoselskaya 2/8, Moscow, Russian Federation)
