Study on Systematic Application of Superconductivity and Cryogenic Technologies to Controlled Nuclear Fusion

超导与低温技术在受控核聚变中的系统应用研究

• 批准号: 11694188
• 负责人: SATOW Takashi
• 金额: $ 3.84万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11694188/
• 关键词: Large Scale Superconducting Coil System; Super fluid helium cooling; High critical temperature Superconductors; Power Control of Superconducting Coil; Controlled Nuclear Fusion; Cryogenic Structural Materials; Superconducting Bus Line; Fusion Devic

In order to realize the controlled nuclear fusion, cryogenic engineering is needed to cool down the large superconducting coil system to create huge magnetic field and keep it at cryogenic temperature. The systematization of the cryogenic engineering and the systematic application are desired as a part of the fusion device engineering. In this study, the investigation has been carried out mainly based on the following fields ; large scale superconducting magnet system, large-scale helium cooling including the super fluid helium cooling, applications of high critical temperature superconductors (HTS) to current feeders and electricity transmission, power control of superconducting coils, mechanical properties of cryogenic structural materials.The large-scale superconducting coil system is now under construction for Wenderstein 7-X in Germany. Forschungszentrum Karlsruhe in Germany and Saclay institute in France will test all the coils to check the superconductivity. The effective scenario of the cooling is constructing by taking account of the experience in the Large Helical Device project.The investigations on HTS, such as Bi system and YBCO, have been performed energetically. The wire of Ag-sheathed Bi2223 is supplied stably. The application to the large superconducting coil is not easy because of the poor mechanical properties, but it is promising to apply the HTS wires to superconducting electricity transmission. The production of the thin film of YBCO is rather hard and about 3 μ m thick films are expected to use in several engineering fields. The HTS will be used as current feeders and electricity transmission in the fusion devices.

为了实现受控的核融合，需要冷冻工程来冷却大型超导线圈系统以创建巨大的磁场并保持低温温度。低温工程和系统应用的系统化是融合设备工程的一部分。在这项研究中，研究主要是基于以下领域进行的。大型超导磁铁系统，包括超级流体氦气冷却，高临界温度超导体（HTS）的应用大型氦气冷却，在当前进料器中的应用和电动传输，超导线圈的功率控制，高温结构材料的机械性能。德国的Forschungszentrum Karlsruhe和法国的Saclay Institute将测试所有线圈以检查超导性。冷却的有效情况是通过考虑大型螺旋设备项目中的经验来构建。对HTS（例如BI System和YBCO）的投资已有效地进行。 Ag甲壳的BI2223电线稳定地提供。由于机械性能较差，因此对大型超导线圈的应用并不容易，但是可以将HTS电线应用于超导电力传输。 YBCO的薄膜的产生相当硬，预计将在几个工程领域中使用约3μm厚的膜。 HTS将用作融合设备中的电流馈线和电动传输。

项目成果

A. Nishimura et al.: "TEMPERATURE RISE AND STRAIN BEHAVIOR OF LARGE HELICAL DEVICE DURING COIL EXCITATION"Proc. Cryogenic engineering Conference, Montreal, Canada. July 12-16. (1999)

A. Nishimura 等人：“线圈励磁期间大型螺旋装置的温升和应变行为”Proc。

T. Mito et.al.: "Performance of the LHD cryogenic system during cooling and excitation tests"Proc. 16^<th> International conference on Magnet Technology (MT-16) Florida, USA. Sep.26-Oct.2,1999. (1999)

T. Mito 等人：“LHD 低温系统在冷却和激发测试期间的性能”Proc。

S. Satoh et.al.: "Performance of the Cryogenic System for the Large Helical Device"Proc. CRYOWORK (Satellite Workship on Cryogenics for Large Systems) IPR Gandhinagar, INDIA. Feb 28-29 2000. 1-14 (2000)

S. Satoh 等人：“大型螺旋装置低温系统的性能”Proc。

S. Yamada et.al.: "OVERALL OPERATIONG CHARACTERISTICS OF SUPERCONDUCTING CURRENT FEEDER SYSTEM FOR THE LHD"Proc. Cryogenic engineering Conference, Montreal, Canada. July 12-16. (1999)

S. Yamada 等人：“LHD 超导电流馈线系统的总体运行特性”Proc。

S. Imagawa et al.: "Results of the First Excitation of Helical Coils of the Large Helical Device"Proc. 16^<th> International conference on Magnet Technology (MT-16) Florida, USA. Sept.26-Oct.2,1999. (1999)

S. Imakawa 等人：“大型螺旋装置螺旋线圈第一次励磁的结果”Proc。