Phase change cooling for an electromagnetic launch

Details Phase change cooling for an electromagnetic launch Phase change cooling for an electromagnetic launch

1991-10-18

1993-06-08

Bentley, Stephen C.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

89 8, 102440, 102704, 124 3, F41B 600

Patent

active

052179486

ABSTRACT:
The device employs Hybrid Pulsed Transformer principles employing a projectile with an internal pay load. The projectile carries a light weight shorted secondary coil or coils constructed of aluminum and the projectile acts as a moving secondary through a plurality of aligned spaced apart transformer primary coils. The moving secondary coil includes a plurality of surrounding channels containing a liquid, such as water, for cooling. The cooling ability of certain liquids, as for example water, associated with change of state between liquid and gas is employed to cool the coil or coils.

REFERENCES:
patent: 4997047 (1991-03-01), Schroeder
patent: 5017549 (1991-05-01), Robertson
Kolm et al, Electromagnetic Launchers, American Chemical Society, 1979, pp. 2004-2012.
Kolm et al, Electromagnetic Launchers and Guns, AD-A143778, 1980, pp. 94-135.
Hull, John R., Application of Superconducting Technology To Earth-To-Orbit Electromagnetic Launch Systems, IEEE Transactions on Magnetics, vol. 25, No. 1, Jan 1989, pp. 243-248.

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