Parametric study for use of stainless steel as a material for thermal shield in PIP2IT transferline at Fermilab

Cryogenic Engineering Conference 2017

材料科学;物理学

Rane, Tejas^1,2 ; Chakravarty, Anindya^1,2 ; Klebaner, Arkadiy^2

Bhabha Atomic Research Centre, Trombay Mumbai

400085, India^1

Fermi National Accelerator Laboratory, P.O. Box 500, Batavia

IL

60510, United States^2

关键词: Design approaches;    Fermilab;    Parametric study;    Raw material prices;    Single point;    Standard size;    Thermal shields;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/278/1/012200/pdf
DOI  :  10.1088/1757-899X/278/1/012200

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Transferline thermal shields are cooled by dedicated cooling lines welded/brazed to the shield at a single point along the circumference. Copper/Aluminium is widely used to fabricate thermal shields because of their higher thermal diffusivity. This causes uniformity of temperature along the surface of the shield thus reducing thermal stresses within allowable values. However, factors such as raw material price, the cost of fabrication depending on standard sizes of pipes/tubes, often drives up the final price of thermal shields. To reduce the cost by making use of easily available stock of standard pipe/tube, it is decided to use stainless steel as a material for thermal shields in the PIP2IT transferline. The present paper discusses the design approach, various factors affecting the conservative selection of thermal shield design.