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

[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.

[发布机构] Bhabha Atomic Research Centre, Trombay Mumbai; 400085, India^1;Fermi National Accelerator Laboratory, P.O. Box 500, Batavia; IL; 60510, United States^2

[效力级别] 物理学 [学科分类] 材料科学（综合）

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