Abstract
A magnetic energy storage system made in an ellipsoidal enclosure and associated variable height superconductive coils is analysed and a comparison with other systems possessing the same superconductive material volume V s and operating current I is performed. Two sets of geometrical dimensions are proposed, one associated with Vs=0.01 m3 and I=80 A and the other corresponding to Vs = 1.437 m3 and I=540 A. An efficiency evaluation dependency Wm/V S-VThreshold/VOverall, taking into account the safety magnetic field threshold BThreshold=0.5 mT distance, is introduced. The results show a remarkable improvement achieved with the ellipsoidal structure in terms of stored energy as well as better shielding in respect to the equivalent system solenoid.
| Original language | English |
|---|---|
| Pages (from-to) | 243-247 |
| Number of pages | 5 |
| Journal | International Journal of Applied Electromagnetics and Mechanics |
| Volume | 25 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - 2007 |
Keywords
- Ellipsoidal enclosure
- Energy storage
- Ferromagnetic shielding
- Variable height coils
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering