CFD modeling of ITER cable-in-conduit superconductors

Zanino, Roberto; Giors, S.; Mondino, R.

doi:10.1016/j.fusengdes.2006.07.006

Cited by 15 publications

(3 citation statements)

References 17 publications

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“…Its disadvantage is the failure to account for the corrugation pitch. Recently, the behavior of the LN 2 flow in superconducting ITER [12] and KEPCO [13] lines was studied by the methods of computational fluid dynamics. The most recent work on this topic directly touched upon the calculation of the hydraulic resistance of corrugated cryogenic pipe with cable, but also without considering corrugation pitches [14].…”

Section: Methods Of Calculating the Pressure Drop In The Cryogenic Chamentioning

confidence: 99%

Choice of flexible cryostat for 2.5 km DC HTS cable to be laid in St. Petersburg

Ivanov¹,

Romashov²,

Bemert³

et al. 2014

AIP Conference Proceedings

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Abstract. HTS tapes production technology has reached the level which allows the manufacture of high-quality cables of long length. In this connection, the issue of creating an HTS power transmission line of some kilometer length had been raised. Pressure loss appears as one of the limiting factors in the circulation of the liquid nitrogen cooling HTS cable placed in a long cryostat. Pressure loss is small in short lines and for this reason did not attract close attention of researchers until recently. Within the framework of the Russian R&D program for HTS power devices, 30 and 200 m AC HTS power transmission lines were created in 2008 and 2010, respectively, and a new 2.5 km 50 MW DC line to be installed in a real city network of St. Petersburg is now at the design and development phase. Pressure loss calculations show the 64/70 mm NEXANS-type corrugated flexible cryostat to be optimal for the cooling channel and the 39/44 mm one -for the return channel. In this case, it is possible to use just one cryopump and one cryocooler to achieve an operational temperature difference of 4-6 K and a pressure drop of 0.1-0.2 MPa in the cooling channel at a flow rate of 20-30 l/min.

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Section: Methods Of Calculating the Pressure Drop In The Cryogenic Chamentioning

confidence: 99%

Choice of flexible cryostat for 2.5 km DC HTS cable to be laid in St. Petersburg

Ivanov¹,

Romashov²,

Bemert³

et al. 2014

AIP Conference Proceedings

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“…This is the case of the air region for the magnetization problem (no current constraints) and no holes in the conductor as well as the air outside rotating machines. An improvement in this approach that enables current constraints is the H-ψ formulation with cohomological decomposition [53,94], where H is decomposed as…”

Section: Combined Formulationsmentioning

confidence: 99%

“…Advanced CFD methods are used to address the problem of friction in the central channel at the microscale level, in particular to predict the effect of gap size [92,94,95], aiming at developing suitable friction factor correlations to be adopted for the 1D modeling of He flow.…”

Section: Friction Factorsmentioning

confidence: 99%

Numerical Modeling of Superconducting Applications

Dutoit

Grilli

Sirois

2022

World Scientific Series in Applications of Superconductivity and Related Phenomena

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Superconductors enable many large-scale electric applications, both current and under research, with a high potential to cause important breakthroughs in human development. These are, for example, the reduction of emissions responsible for the climate crisis through energy generation (fusion and offshore wind turbines), electric transportation (electric and hybrid-electric airplanes or sea vessels), and energy-efficient electric networks (power-transmission cables and transformers). Superconductors also enable novel medical instruments, such as (high-field) magnetic resonance imaging (MRI) and accelerators for ion cancer therapy. Last but not least, superconducting magnets made it possible to conduct some of the largest experiments in fundamental research in the world, involving particle accelerators and detectors, such as the large hadron collider (LHC).

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