Dielectric Nanofluids for Electrostatic Machines &amp; Actuators

Frankforter, Kevin J.; Klingenberg, Daniel J.; Ludois, Daniel C.

doi:10.1109/ias.2019.8911930

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…This trend has continued to their most recent reports; in [23], an unspecified dielectric fluid ("HT101") was utilized with a relative dielectric constant of 3.8, despite having the same reported electric field breakdown strength (20 kV/mm) as the previous Vertrel fluids. In [68], the ester isoamyl isovalerate was used as the base solvent in a dielectric nanoparticle suspension, where a dielectric constant of 4.0 and the conductivity on the order of 10 −9 S/m were reported. A fluid-filled induction-type electrostatic machine filled with the fluorocarbon Novec 7100 (ε g /ε 0 = 7.4) was reported on by Dadkhah et al [69].…”

Section: B Dielectric Liquid Mediamentioning

confidence: 99%

Macroscale Electrostatic Rotating Machines and Drives: A Review and Multiplicative Gain Performance Strategy

Ludois

Frankforter

Ge³

et al. 2022

IEEE J. Emerg. Sel. Topics Power Electron.

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The development of electrostatic rotating machines for macroscale power conversion has been largely sidestepped, given the uncertainty of its capabilities and place in the technological hierarchy. This article reviews prior and present works in macroscale electrostatic rotating machinery and identifies the relevant machine types, their limitations, and strategies for performance improvement. The separately excited synchronous electrostatic machine presents the greatest opportunity for competitive macroscale category-two machinery, and a strategy of multiplicative gains is established. The strategy spans machine modeling, optimization, gap media (gases, liquids, and vacuum), gap maintenance, advanced manufacturing techniques, and power electronic drives/control. Ultimately, the product of innovation gains across all these areas reveals that macroscale electrostatic machinery is possible and potentially competitive with magnetic machinery for specific areas, including position and hold, low-speed direct drive, and high-voltage utility generation applications.

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Section: B Dielectric Liquid Mediamentioning

confidence: 99%

Macroscale Electrostatic Rotating Machines and Drives: A Review and Multiplicative Gain Performance Strategy

Ludois

Frankforter

Ge³

et al. 2022

IEEE J. Emerg. Sel. Topics Power Electron.

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Dielectric nanoparticle suspensions for increased electrostatic forces

Frankforter

Ludois

Klingenberg

2022

Journal of Applied Physics

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Dielectric suspensions of nanoparticles for electrostatic force production applications have been developed. To avoid viscosity increases due to the electrorheological effect, aliphatically coated BaTiO3 nanoparticles were synthesized and mixed with n-decane to form concentrated dielectric suspensions. The synthesis and characterization of the nanoparticles and the suspensions are described. The increased electrostatic force on electrodes due to the increased relative permittivity of the dielectric suspensions is verified with force test stand measurements, consistent with a standard electrostatic model.

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Dielectric Nanofluids for Electrostatic Machines & Actuators

Cited by 2 publications

References 15 publications

Macroscale Electrostatic Rotating Machines and Drives: A Review and Multiplicative Gain Performance Strategy

Macroscale Electrostatic Rotating Machines and Drives: A Review and Multiplicative Gain Performance Strategy

Dielectric nanoparticle suspensions for increased electrostatic forces

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