Abstract
The relevance of short sample measurements in SULTAN for the prediction of the performance of thecoils of the International Thermonuclear Experimental Reactor (ITER) is assessed using the case ofthe Nb3Sn high-field central solenoid model coil (CSMC) conductor, for which both coil performanceand short sample SULTAN results (Good Joint (GJ) sample) are available. A least-squaresfit procedure, based on a uniform current distribution among the strands and the Durhamscaling relations for the field, temperature and strain dependences of the strandJc provides athermal strain of −0.294% and a degradation factor of approximately 60% for the GJ sample. In the calculation of thevoltage along Layer 1A of the CSMC the hoop stress and the variation of the magnetic fieldin the conductor cross-section were taken into account. The temperature profile, used in thecalculations, is based on published temperature profiles and empirical relations betweenhelium inlet and outlet temperatures. A comparison with the GJ results indicates thatshort sample measurements in SULTAN provide a conservative estimate of the coilperformance.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
