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22-27 October 2018
Mahatma Mandir Conference Centre
Asia/Kolkata timezone
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Thermo-structural and heat load analysis of SST-1 Superconducting coils

26 Oct 2018, 08:30
4h
Mahatma Mandir Conference Centre

Mahatma Mandir Conference Centre

Gandhinagar (nearest Airport: Ahmedabad), India
Poster FIP - Fusion Engineering, Integration and Power Plant Design P7 Posters

Speaker

Mr Arvind Tomar (Institute for plasma research Bhat Gandhinagar India)

Description

Steady-State Superconducting Tokamak-1 (SST-1) has Sixteen Toroidal field (TF) and nine superconducting poloidal field (PF) coils[1]. TF coils are connected in series, whereas, PF coils are to be operated individually in pulse mode. TF coils are operating up to 2.5 T in steady state condition but PF coils have hydraulic as well as heat load issues [2]. In order to operate TF coils and PF coils simultaneously and understand related issues, thermo-structural and heat load analysis have been initiated using ANSYS software.In these analysis, a CATIA model is prepared for SST-1 consisting of superconducting coils, support structure, 80 K cooling system and cryostat. Meshing is done using ANSYS. Initial condition and boundary conditions for temperature, pressure and other constraints in structure are given as inputs from experimental data. Steady state thermal and static structural modules of ANSYS are used for these analyses. Structural analysis of supports, cantilever ring, TF and PF coils, OICS at cryogenic temperatures carried out. Validation of stresses and thermal contraction results compared with analytical results, design and experimental results. Using similar CATIA model, radiative heat loads on PF and TF magnet coils, conduction loads from OICS supports, hydraulic pipes, valves and other instrumentations and on cantilever support ring from ground supports also estimated using ANSYS software. Estimated heat loads due to residual gas conduction, radiation and conduction on various components are compared with analytically calculated and experimental results. Simulated and estimated heat loads are found comparable. Model preparation, meshing, boundary conditions and calculation methodologies will be discussed in this presentation.
Country or International Organization India
Paper Number FIP/P7-21

Primary author

Mr Arvind Tomar (Institute for plasma research Bhat Gandhinagar India)

Co-authors

Mr Hemang Agravat (institute for plasma research) Mr Pramit Dutta (Institute for Plasma Research) Mr Raju Daniel (institute for plasma research) Mr Srinivasan R (institute for plasma research) Mr Upendra Prasad (Institute for Plasma Research) Dr Vipulkumar Tanna (Institute for Plasma Research) Mr bharatkumar doshi (Institute for plasma research)

Presentation Materials

Paper