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We have conducted both electrical and cryomechanical designs of a superconducting propulsion motor based on field-poles made of twinned double-pancake-coils (DPC) with Bi-2223 superconducting wire. Neither field-poles nor armature coils have an iron core; that way the magnetic flux increases with increasing applied current in the HTS wire. Special attention has been paid to reducing heat from the...
A pod propulsion system has been receiving attention as a measure to satisfy the Kyoto Protocol, which was activated in February 2005. A high-temperature superconducting motor is thought to maximize the merit of the pod propulsion system. Sumitomo Electric, University of Fukui, IHI and other organizations have developed the world's first liquid nitrogen cooled high-temperature superconducting motor...
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