CFD Analyses on LHE Cooling for SCQ Magnets in BEPCII Upgrade.

He, Z. H. ; Wang, L. ; Tang, H. M. ; Zhang, X. B. ; Jia, L. X.

Technical Information Center Oak Ridge Tennessee

关键词: Superconducting magnets;    Cooling;    Computational fluid dynamics;    Fluid flow;    Flow rate;   

RP-ID  :  DE200415006710

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

A pair of superconducting interaction region quadrupole magnets in Beijing Electron-Positron Collider Upgrade (BEPCII) are to be cooled by supercritical helium in order to eliminate the flow instabilities in the constrained cooling channels. The fluid flow is simulated by the commercial computational dynamics fluid software. The heat loads to the superconducting quadrupole (SCQ) magnets from the radiation shields at 80 K and from the thermal conduction of mechanical supports are considered. The temperature distribution of the fluid in the liquid helium cooling channels, and the heat transfer in the SCQ magnet and by its supports are presented. The influence of mass flow rate on pressure drop in the cooling passage is analyzed.