Thermodynamics of a self-pumping cooling cycle for superconducting generator applications

✍ Scribed by A. Hofmann; H. Köfler; C. Schnapper

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 384 KB
• Volume: 17
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(77)90292-2

✦ Synopsis

The helium supply and outlet lines of a rotating superconducting magnet can be arranged so that the self-pumping mechanism due re the centrifugal forces effects a pressure and temperature decrease in the rotor. Several parameters such as speed of rotation, diameter of the rotor, outlet pressure, and quality of the helium supplied to the rotor have been modified in a computer study. The calculation shows that the self-pumping mechanism is so effective that even the temperature at the periphery of a large scale rotor decreases with increasing speed of rotation. This refrigeration cycle appears to have a strong self-regulating characteristic.