Cool-down of superconducting power transmission lines with single phase helium

✍ Scribed by M.C. Jones

• Publisher: Elsevier Science
• Year: 1980
• Tongue: English
• Weight: 747 KB
• Volume: 20
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(80)90008-9

✦ Synopsis

Numerical solutions of the one-dimensional conservation equations of fluid flow are given for the problem of the cool-down of superconducting power transmission cables. By including the continuity and momentum conservation equations, both time dependent and spatially dependent mass flow may be treated. The equations are applied to specific designs in which one stream of helium fills the bore of a cable while a second fills the space between the outside of the cable and an enclosing pipe. Both co-current flow and counter flow are treated with a variety of boundary conditions. Temperature profiles as a function of time, and total cooldown times are given.