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Impact of Perlator on the cooling liquid flow and hottest point temperature of superconducting windings in HTS transformer

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Superconductivity 2022年第3期3卷 97-105页

作者： Mahdi Mahamed Mohammad yazdani-Asrami Vahid Behjat akbar yazdani Mojtaba Sharifzadeh Department of Electrical Engineering Azarbaijan Shahid Madani UniversityTabrizIran Propulsion Electrification&Superconductivity GroupJames Watt School of EngineeringUniversity of GlasgowGlasgowUK Department of Applied Sciences University of Quebec at ChicoutimiChicoutimiCanada Thermal Power Plant Research Center TabrizIran Fondazione Bruno Kessler TrentoItaly

The generated heat by the superconducting windings and the other parts such as current leads in transformer increases the hottest point temperature(HPT)and causes the high temperature superconducting(HTS)windings to *** to the properties of superconducting windings,reducing the HPT is of critical importance for the stable operation of the HTS *** cooling system of HTS transformers,not only provides the cryogenic temperature for the proper operation of the superconductors but also is responsible for dissipating the generated heat by the *** this paper,the effect of the angle of inlet pipes in cooling system was *** was a simple and effective solution which increases the heat transfer in liquid *** was shown that inlet angle has a significant effect on the flow turbulence and the windings *** Perlator is used as a lattice sheet which is installed inside the inlet valve and increases the turbulence of inlet flow of liquid nitrogen to increase heat transfer and reduce *** thermal analysis is obtained by finite element method using ANSYS Fluent *** influence of changing the inlet pipe angle and different structure of Perlator on heat transfer was investigated.

关键词： Cryogenic temperature Finite element method Heat transfer Perlator Superconducting transformer Turbulences

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