CRYOGENIC REQUIREMENTS FOR THE JT-60SA TOKAMAK

被引：17
|
作者：
Michel, F. [1 ]
Hitz, D. [1 ]
Hoa, C. [1 ]
Lamaison, V. [2 ]
Kamiya, K. [4 ]
Roussel, P. [1 ]
Wanner, M. [3 ]
Yoshida, K. [4 ]
机构：
[1] UJF Grenoble 1, CEA Grenoble, UMR E CEA, INAC SBT, 17 Rue Martyrs, F-38054 Grenoble, France
[2] CEA Cadarache, IRFM STEP, F-13108 St Paul Les Durance, France
[3] Broader Fus Dev Dept, Fus Energy, D-85748 Garching, Germany
[4] JAEA, Naka Inst, JT 60SA Japanese Team, Tokai, Ibaraki, Japan
来源：
ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B | 2012年 / 1434卷
关键词：
JT-60SA tokamak; fusion; helium refrigerator; variable heat loads;
D O I：
10.1063/1.4706907
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The superconducting tokamak JT-60SA is part of the Broader Approach Programme agreed between Japan and Europe. CEA is in charge of the cryogenic system procurement including the Warm Compression Station, the gas storages, the Refrigerator Cold Box and the Auxiliary Cold Box (ACB) which has to be installed on the JAEA Naka site in 2016. This paper summarizes the updated cryogenic requirements for the tokamak JT-60SA cryogenic system. The cryogenic system has a refrigeration capacity of about 9 kW equivalent at 4.5K, to supply cryopump panels at 3.7 K, superconducting magnets and cold structures at 4.4 K, HTS current leads at 50 K, and thermal shields at 80 K. This paper presents the static and variable heat loads of the different cooling loops and the results of thermohydraulic calculations to derive the transient heat loads at the interface between the magnet system cooling loops and the Auxiliary Cold Box.
引用
收藏
页码：78 / 85
页数：8
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