Development on CFRP Rotor for 1kWh Superconducting Flywheel System

Minami, M.; Nagàya, Shigeo; Kawashima, Hiroshi; Sato, Takeru; Kurimura, Tomo

doi:10.1007/978-4-431-66879-4_308

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2000

2002

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Cited by 6 publications

(2 citation statements)

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“…The outputs of strain gages are taken out through the slip ring.The spin tests at the rotating speed of 22,000rpm have been performed, and it has been confirmed that the test rotor was able to rotate having the margin of the speed of 1.35 times to designed rotating speed of 20,000rpm. The measured stresses of CFRP flywheel ring and supporting disk reasonably coincided with the results of analysis shown inFig.3(6)(7)…”

supporting

confidence: 85%

A trial manufacturing of 1k Wh flywheel with high temperature superconducting magnetic bearing for energy storage system

2000

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supporting

confidence: 85%

A trial manufacturing of 1k Wh flywheel with high temperature superconducting magnetic bearing for energy storage system

2000

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“…The availability of HTS bearings that are so nearly friction-free naturally leads to their consideration for flywheel energy storage, and several major projects have investigated this application [31,120,127,[155][156][157][158][159]. Flywheels with conventional bearings typically experience high-speed idling (that is, no power input or output) losses of the order of ≈1% per hour.…”

Section: Applicationsmentioning

confidence: 99%

Superconducting bearings

Hull

2000

Supercond. Sci. Technol.

469

203

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The physics and technology of superconducting bearings is reviewed. Particular attention is given to the use of high-temperature superconductors (HTSs) in rotating bearings. The basic phenomenology of levitational forces is presented, followed by a brief discussion of the theoretical models that can be used for conceptual understanding and calculations. The merits of various HTS bearing designs are presented, and the behaviour of HTS bearings in typical situations is discussed. The article concludes with a brief survey of various proposed applications for HTS bearings.

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