Abstract
Superconductive magnetic energy storage (SMES) units are large potential users of fiberglass reinforced polymer matrix composites. A 1000 MWh unit would require 1.6 Gg of material.1 The superconducting magnet requires low thermal conductance structural supports to transmit the magnetic loads from the 1.8 K conductors to the room temperature bedrock. In particular, it needs support struts with a high strength to thermal conductivity ratio, but low elastic modulus and a low strength to weight ratio are quite acceptable. This is unlike many aerospace applications. The large mass of material needed for struts necessitates the use of easily obtainable low-cost materials. This generally means that commercially fabricated composites will be used. The total capital cost must be balanced against operating cost.
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References
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© 1979 Plenum Press, New York
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Stone, E.L., El-Marazki, L.O., Young, W.C. (1979). Compressive Fatigue Tests on a Unidirectional Glass/Polyester Composite at Cryogenic Temperatures. In: Clark, A.F., Reed, R.P., Hartwig, G. (eds) Nonmetallic Materials and Composites at Low Temperatures. Cryogenic Materials Series. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7522-1_18
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DOI: https://doi.org/10.1007/978-1-4615-7522-1_18
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