Coupling superconducting magnet and refrigerator thermal-hydraulic models for nuclear fusion applications

27th International Cryogenics Engineering Conference and International Cryogenic Materials Conference 2018

Bonifetto, R.^1 ; Brighenti, A.^1 ; Savoldi, L.^1 ; Zanino, R.^1

NEMO Group, Dipartimento Energia, Politecnico di Torino, Italy^1

关键词: Cooling power;    Helium refrigerators;    Magnetic fusion;    Modelica;    Nuclear fusion;    System Dynamics;    Thermal hydraulics;    Thermal-hydraulic model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/502/1/012130/pdf
DOI  :  10.1088/1757-899X/502/1/012130

来源: IOP

【 摘 要 】

Helium refrigerators will provide the needed cooling power to the superconducting magnets of future magnetic fusion reactors, e.g. ITER, JT-60SA, EU DEMO. Reliable simulation tools are required to model the magnets-refrigerator coupling, in order to cope with feedbacks affecting the overall system dynamics. Here we couple the 4C code for the analysis of thermal-hydraulic transients in superconducting magnets with a refrigerator model developed in Modelica. The results of the new tool are compared with experimental data from the first phase of an ITER CSMC cool-down, from 300 K to 80 K.