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Abstract In a superconductive energy storage system, large amounts of electrical energy would be stored in the magnetic field of a large superconductive inductor. Such a system would store energy during periods of low demand, at night, in which excess generator capacity is available. The stored energy could then be delivered to the power system during periods of peak demand in daytime. Superconducting magnets in some cases require the extensive use of mechanical structs to the low temperature region (magnet) on one end while the other end of the struts rests on room temperature frames, One such extreme example occurs in the design of superconductive solenoids for use as enezgy storage magnets. In such magnets there will be large radial and axial forces (IxB forces). Since, the cost of a cold structure would be excessiveb.4), it is necessary to support ouch solenoids in bedrock (which is cost free except for minor excavation charges) by means of epoxy—fiberglass struts. The heat leak through these supports (struts) is a major portion of the heat load. It is required that these aappox-tw have low thermal conduati¬vity as well as high strength. Fiberglass has a high strength to conductivity ratio and is less expensive than other materials with high ratios. Fiberglass was, thers¬fore, chosen for the support material. |