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Journal of Superconductivity

, Volume 1, Issue 4, pp 349–364 | Cite as

Magnetohydrodynamic ship propulsion with superconducting magnets

  • D. L. Mitchell
  • D. U. Gubser
Article

Abstract

The feasibility of magnetohydrodynamic (MHD) ship propulsion using superconducting magnets is reviewed in light of recent advances in high-temperature superconductivity. The scaling relations for the electrical and hydraulic efficiencies of MHD pump-jets show that overall efficiencies >50% are feasible at speeds of 40 knots and higher provided that magnetic fields >5T can be maintained over volumes of the order of 100 m3. The development of large-scale electrical machinery and magnets using the high-temperature superconductors now under development could make it practical to construct submersibles for high-speed and silent operation. Low-speed tankers for movement of bulk cargo would be efficient with even lower fields.

Key words

magnetohydrodynamics ship propulsion superconducting magnets high-temperature superconductivity 

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Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • D. L. Mitchell
    • 1
  • D. U. Gubser
    • 2
  1. 1.Mitchell AssociatesReston
  2. 2.Naval Research LaboratoryWashington DC

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