Conceptual & Engineering Design of Plug-in Cryostat Cylinder for Super-Conducting Central Solenoid of SST-1

10th Asia Plasma and Fusion Association Conference

Biswas, Prabal^1 ; Santra, Prosenjit^1 ; Vasava, Kirit^1 ; Jayswal, Snehal^1 ; Parekh, Tejas^1 ; Chauhan, Pradeep^1 ; Patel, Hitesh^1 ; Pradhan, Subrata^1

Institute for Plasma Research, Bhat, Gandhinagar, Gujarat State

382 428, India^1

关键词: Central solenoid;    Copper conductors;    Current leads;    Design drivers;    Engineering design;    Material selection;    Quality assurance/control;    Support structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/823/1/012041/pdf
DOI  :  10.1088/1742-6596/823/1/012041

来源: IOP

【 摘 要 】

SST-1, country's first indigenously built steady state super-conducting tokamak is planned to be equipped with an Nb3Sn based superconducting central solenoid, which will replace the existing copper conductor TR1 coil for the purpose of Ohmic breakdown. This central solenoid (CS) of four layers with each layer having 144 turns with an OD of 573 mm, ID of 423 mm length of 2483 mm will be housed inside a high vacuum, CRYO compatible plug-in cryostat thin shell having formed from SS 304L plate duly rolled and welded to form cylinder along with necessary accessories like LN2bubble panel, current lead chamber, coil and cylinder support structure etc. This paper will present the design drivers, material selection, advantages and constraints of the plug-in cryostat concept, sub-systems of plug-in cryostat, its conceptual and engineering design, CAD models, finite element analysis using ANSYS, safety issues and diagnostics, on-going works about fabrication, quality assurance/control and assembly/integration aspects with in the existing SST-1 machine bore.