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Donald Dorris
Interesting. When scaled to a size to produce sufficient energy there are multiple issues. Bearing losses & friction. A way to harness the energy (like brushes, contacts, etc.) have inherent losses and friction. Magnet sizes and limits plus magnets do degrade over time. Once scaled, costs that I’ve ... View More
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2Donald Dorris
FYI - a group of us, when I worked at Emerson Electric, did. The only medium that worked efficiently was in a cryogenic liquid and the liquid acted as the lubricant. The issue was that materials properties change electrically at cryogenic temperatures so generated efficiency becomes an issue. Specia... View More
Donald Dorris
They best cryogenic liquid tested were nitrogen (-196 C)
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