Development of the Pseudo 3D Thermo Hydraulic Tool TACOS: Application to JT-60SA TF Coils Design Optimization

Portafaix, C.; Barabaschi, P.; Gauthier, Florent; Hertout, P.; Lacroix, Benoît; Lesage, JO; Nicollet, S.; Zani, L.; Villari, R.

doi:10.1109/tasc.2010.2044029

Cited by 9 publications

(3 citation statements)

References 6 publications

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“…First, the TF conductor design was found sound with respect to the temperature safety margin when proper strand specifications are considerd. The main design parameters of conductor and strand can be seen in Table III, consolidated by previous electromagnetic and thermohydraulic studies [13]- [16] allowing to switch confidently to industrial phase. Recent parametric analyses have been led using common strand characteristics input for evaluating the possible critical performances degradations derived from TF coil manufacturing stages, e.g.…”

Section: B Electromagnetic and Thermodynamic Approachmentioning

confidence: 97%

Design of JT-60SA Magnets and Associated Experimental Validations

Zani¹,

Barabaschi²,

Duglue³

et al. 2011

IEEE Trans. Appl. Supercond.

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In the framework of the JT-60SA project, aiming at upgrading the present JT-60U tokamak toward a fully superconducting configuration, the detailed design phase led to adopt for the three main magnet systems a brand new design. Europe (EU) is expected to provide to Japan (JA) the totality of the toroidal field (TF) magnet system, while JA will provide both Equilibrium field (EF) and Central Solenoid (CS) systems. All magnet designs were optimized trough the past years and entered in parallel into extensive experimentally-based phases of concept validation, which came to maturation in the years 2009 and 2010. For this, all magnet systems were investigated by mean of dedicated samples, e.g. conductor and joint samples designed, manufactured and tested at full scale in ad hoc facilities either in EU or in JA. The present paper, after an overall description of magnet systems layouts, presents in a general approach the different experimental campaigns dedicated to qualification design and manufacture processes of either coils, conductors and electrical joints. The main results with the associated analyses are shown and the main conclusions presented, especially regarding their contribution to consolidate the triggering of magnet mass production. The status of respective manufacturing stages in EU and in JA are also evoked.

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Section: B Electromagnetic and Thermodynamic Approachmentioning

confidence: 97%

Design of JT-60SA Magnets and Associated Experimental Validations

Zani¹,

Barabaschi²,

Duglue³

et al. 2011

IEEE Trans. Appl. Supercond.

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“…This mass flow perturbation in the conductors should nevertheless be limited, as the mass flow in the TF casing represents less than 12% of the winding pack mass flow. Finally, the limits of TACOS/TEXTO were found acceptable [4], and this tool allowed to evaluate the impact of several TF coil design features in the framework of cost and feasibility optimization [5].…”

Section: A Tf He Flow Parametric Analysis With Tacos/textomentioning

confidence: 99%

Impact of TF Magnet Mass Flow on Conductor Margin and on Cryogenic System of JT-60SA

Lacroix

Portafaix

Duchateau

et al. 2012

IEEE Trans. Appl. Supercond.

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In the framework of the JT-60SA project, a parametric study was performed on the He mass flow rate cooling the Toroidal Field (TF) system. This mass flow is a crucial design parameter, since a high value is favorable regarding the temperature margin criterion, but requires more circulation power thus generating one of the main cryogenic loads.The study was led with the Tacos/Texto tool, based on Ansys (thermal) and Gandalf (thermohydraulics) codes. The impact of the TF conductor mass flow was analyzed, regarding on the one hand the temperature margin criterion, and on the other hand cryogenic aspects such as the TF magnet heat loads smoothing and the impact on the overall cryogenic system loads.Concerning the temperature margin criterion, the analysis showed that the foreseen nominal value of 4 g/s per conductor is appropriate for the studied reference scenario, while proposing a lower mass flow value in case of less demanding operation conditions, notably without or with low neutron heating. In such conditions, a TF mass flow limitation could bring an appreciable reduction of cryogenic loads, but shouldn't involve significant benefit regarding heat load smoothing.

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“…The reliability of TACOS/TEXTO being ensured, this tool was then used to evaluate the impact of several TF coil design options, in the framework of the cost and feasibility optimization [5].…”

Section: Implementation Of the Tacos Modulementioning

confidence: 99%