Abstract
This chapter describes the thermal stress, flexibility analysis and layout design of cryogen carrying piping/tubing and their distribution network inside CLAC for CFS of SST-1. The current feeder system (CFS) of steady state superconducting tokamak (SST-1) has been designed for its normal, cool down/ warm up as well as for emergency operations. The system will transit in a temperature range of 300K to 4.5K during the operation. Components with different materials of construction will experience the differential thermal contraction and thermal stress. Therefore an optimized route for the superconducting (SC) bus bars and layout for piping has been designed to feed cryogen to respective current leads and SC bus bars. At low temperature conditions, the pipelines contract and thermal stress induces due to prevention limit of thermal contraction. The optimized and aesthetic layout has been designed by considering the space limitation and restriction, which may rise during the fabrication and assembly. The whole distribution network has been designed using ANSYS software.
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