High temperature superconducting degaussing system

A method of degaussing a water vessel having three vessel planes, the method comprising:

• providing a plurality of degaussing coil loops running throughout a hull of the water vessel, with a plurality of said plurality of degaussing coil loops arranged substantially parallel to each of said three perpendicular vessel planes, wherein each degaussing coil loop comprises a light-weight reduced-size cable assembly, the cable assembly comprising:
• a hollow support tube;
• a high temperature superconductor cable wrapped around the hollow support tube, the support tube supporting the high temperature superconductor cable;
• a cryogenic tube with an elongated opening, wherein the high temperature cable and the hollow support tube are located within the elongated opening of the cryogenic tube;
• the method further comprising:
• cooling a single-phase gaseous cryogen that is circulated in each degaussing coil loop;
• circulating electrical currents through each of said plurality of degaussing coil loops;
• and
• circulating in each degaussing coil loop, a single-phase gaseous cryogen through an inner core of each hollow support tube to cool each high temperature superconductor cable.

A light-weight reduced-size degaussing system comprising:

• a water vessel having three perpendicular vessel planes;
• a plurality of degaussing coil loops running throughout a hull of the water vessel, with a plurality of said plurality of degaussing coil loops arranged substantially parallel to each of said three perpendicular vessel planes, wherein each degaussing coil loop comprises a light-weight reduced-size cable assembly, each cable assembly comprising:
• a high temperature superconductor;
• a cryogenic tube with an elongated opening, wherein the high temperature cable is located within the elongated opening of the cryogenic tube;
• a single-phase gaseous cryogen flowing through the elongated opening in the cryogenic tube for cooling the high temperature superconductor;
• one or more power sources electrically connected to said plurality of degaussing coil loops for providing electric currents through said degaussing coil loops;
• one or more circulation fans associated with each cable assembly for circulating the single-phase gaseous cryogen;
• and
• one or more refrigerators associated with each cable assembly for receiving and cooling the single-phase gaseous cryogen circulated by said one or more circulation fans, wherein the force of the fan directs the cooled single-phase gaseous cryogen from the refrigerator to and through the hollow tube.