Development of Cryogenic gas cooling model for thermal design of Superconducting magnet

IF 1.8 3区工程技术 Q3 PHYSICS, APPLIED

Cryogenics Pub Date : 2025-04-02 DOI:10.1016/j.cryogenics.2025.104073

Norikazu Takagi , Masahiko Takahashi , Toru Kuriyama , Takahiro Tsuchihashi , Hiroyuki Takewa , Kohki Takahashi , Satoshi Awaji

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引用次数: 0

Abstract

The gas circulation cooling system is suitable for HTS applications with large heat loads and long heat transfer distance compared to the conduction cooling. Since the steady-state and transient thermal analysis is necessary to design the cooling systems, the one-dimensional thermal model for the gas cooling has been developed using the modeling language Modelica. The model includes the modules such as cooling capacity at cryocooler, thermal resistance and heat exchanger so that the modules cover the components used in the wide range of superconductive applications. Our originality lies in applying the models with the experimental data of the components used in the products.

As a case study, the thermal model was applied to the 25 T Cryogen-Free Superconducting Magnet at Tohoku University that consists of the HTS and LTS coils. Optimization and sensitivity analyses were performed by the simulations. To confirm the accuracy of the model, the cooldown time by the simulation was compared with the measurement resulting an error of 3 %.

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来源期刊

Cryogenics 物理-热力学

CiteScore

3.80

自引率

9.50%

发文量

审稿时长

2.1 months

期刊介绍： Cryogenics is the world''s leading journal focusing on all aspects of cryoengineering and cryogenics. Papers published in Cryogenics cover a wide variety of subjects in low temperature engineering and research. Among the areas covered are: - Applications of superconductivity: magnets, electronics, devices - Superconductors and their properties - Properties of materials: metals, alloys, composites, polymers, insulations - New applications of cryogenic technology to processes, devices, machinery - Refrigeration and liquefaction technology - Thermodynamics - Fluid properties and fluid mechanics - Heat transfer - Thermometry and measurement science - Cryogenics in medicine - Cryoelectronics