Design of the Massive Gas Injection system for JT-60SA
Design of the Massive Gas Injection system for JT-60SA
复制标题
JT-60SA大量气体喷射系统设计
DOI：
--
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Y. Kamada
中科院分区：
文献类型：
--
作者：
M. Dibon;G. Matsunaga;S. Nakamura;S. Davis;C. Sozzi;Y. Kamada
M.迪邦湾Matsunaga，S.中村、S.戴维斯角Sozzi，Y. Kamada 1 Max-Planck-Institute for Plasma Physics，Garching，德国2 National Institute for Quantum and Radiological Science and Technology，纳卡，Japan 3 Fusion for Energy，Garching，德国4 Istituto di Fisica del Plasma IFP-CNR，Milano，意大利大利1.摘要抗干扰是ITER和未来托卡马克聚变电站的主要研究课题之一。因此，必须对大型托卡马克进行广泛的研究，以了解物理学并开发必要的技术。将于2020年投入使用的JT-60 SA将是这项研究的主要机器。它将配备大量气体注入（MGI）系统，以在第一研究阶段进行中断缓解实验。该MGI系统将由两个带有集成储液器（833 cm 3，7.5 MPa，6247 Pa*m3，1.5*10个颗粒）的快速阀组成，将安装在P09和P18区稳定板后面的真空容器内。由于它们位于真空容器内，阀门必须与容器内的条件（磁场、高温、辐射和真空）兼容。因此，一个弹簧驱动阀与压电致动被选为设计基础。可以预见的是，注入各种不同的惰性气体和具有H2/D2的气体混合物。进行CFD计算以评估从阀进入真空容器的气流。本文介绍了MGI阀门的详细设计，描述了容器内设置和CFD分析结果。
M. Dibon, G. Matsunaga, S. Nakamura, S. Davis, C. Sozzi, Y. Kamada 1 Max-Planck-Institute for Plasma Physics, Garching, Germany 2 National Institute for Quantum and Radiological Science and Technology, Naka, Japan 3 Fusion for Energy, Garching, Germany 4 Istituto di Fisica del Plasma IFP-CNR, Milano, Italy 1. Abstract Disruption mitigation is one of the main research topics on the way to ITER and future Tokamak fusion power plants. Therefore, extensive studies have to be carried out on large Tokamaks to understand the physics and to develop the necessary technologies. JT-60SA, which will go into operation in 2020, will be a primary machine for this research. It will be equipped with a Massive Gas Injection (MGI) system to conduct disruption mitigation experiments in the first research phases. This MGI system will consist of two fast valves with integrated reservoirs (833 cm3, 7.5 MPa, 6247 Pa*m3, 1.5*10 particles), which will be installed inside the vacuum vessel behind the stabilizing plate in sectors P09 and P18. Due to their location inside the vacuum vessel, the valves must be compatible with in-vessel conditions (magnetic field, elevated temperature, radiation and vacuum). Hence, a springdriven valve with piezoelectric actuation was chosen as design basis. It is foreseen to inject a large variety of different noble gases and gas mixtures with H2/D2. CFD calculations were carried out to evaluate the gas flow from the valves into the vacuum vessel. This paper presents the detailed design of the MGI valves, a description of the in-vessel setup and the results of the CFD analysis.