Design of a cold helium circulation system for HTS application

IF 1.8 3区工程技术 Q3 PHYSICS, APPLIED

Cryogenics Pub Date : 2025-05-23 DOI:10.1016/j.cryogenics.2025.104126

Qi Huang, Xinglong Guo, Zhanli Yao, Hongming Tang

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引用次数: 0

Abstract

This paper introduces a cold helium circulation system for high-temperature superconducting (HTS) applications, designed to maintain HTS coils below 30 K during operation. The cold helium circulation system includes HTS coils, two self-developed Gifford-McMahon (G-M) refrigerators (BMC215, BAMA Inc.) with respective cooling capacities of 62 W@60 K for the first stage and 20 [email protected] K for the second stage, a circulating helium compressor (HC-603, BAMA Inc.), two cold head heat exchangers, and two double-pipe heat exchangers. Following the quantification of system heat loads, the cooling system is assigned a design target of 10 W@30 K. Through systematic design and optimization of heat exchanger structures, optimal dimensions and configurations for each stage are determined. Experimental results reveal that the HTS coils achieve a minimum temperature ranging from 24 K to 26 K, successfully fulfilling the design target. This study validates the efficacy and reliability of the proposed cold helium circulation system, positioning it as a viable solution for HTS applications.

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高温超导冷氦循环系统的设计

本文介绍了一种用于高温超导（HTS）应用的冷氦循环系统，该系统旨在使高温超导线圈在运行过程中保持在30 K以下。冷氦循环系统包括HTS盘管、两台自主研发的第一级制冷量为62 W@60 K、第二级制冷量为20 [email protected] K的Gifford-McMahon （G-M）制冷机（BMC215， BAMA公司）、一台循环氦压缩机（HC-603， BAMA公司）、两台冷头换热器和两台双管换热器。系统热负荷量化后，冷却系统的设计目标为10 W@30 K。通过对换热器结构的系统设计和优化，确定了换热器各级的最佳尺寸和配置。实验结果表明，高温超导线圈的最低温度范围为24 ~ 26 K，成功实现了设计目标。本研究验证了所提出的冷氦循环系统的有效性和可靠性，将其定位为HTS应用的可行解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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