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Mechanical to electrical energy conversion in a hybrid liquid-solid dielectric electrostatic generator.

Crossland, A.F. and Wyllie, P.B. and Ran, L. (2009) 'Mechanical to electrical energy conversion in a hybrid liquid-solid dielectric electrostatic generator.', Journal of applied physics., 106 (4). 044108.

Abstract

The authors are studying the effect of the dielectric choice in electrostatic generators on the energy yield. Despite having high permittivities, solid dielectrics are shown to have a lower performance than is first apparent, due to the effect of the air-gap. Liquid dielectrics are found to offer higher overall equivalent permittivities compared to solid dielectrics with air-gaps but the conductivity of liquids limits their performance. Experimental work has been conducted using a hybrid generator which incorporates both solid and liquid layers. The solid (PVDF) layer is used to limit the conduction between the plates and the liquid dielectric is withdrawn or injected for the necessary change in capacitance. The experimental work has demonstrated a number of design considerations for such generators and is ultimately used to show that energy conversion is possible using this electrostatic generator configuration.

Item Type:Article
Keywords:Capacitance, Dielectric devices, Dielectric liquids, Dielectric thin films, Direct energy conversion, Electrostatic devices, Energy harvesting, Permittivity.
Full text:PDF - Published Version (119Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1063/1.3207834
Publisher statement:Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Crossland, A.F. and Wyllie, P.B. and Ran, L. (2009) 'Mechanical to electrical energy conversion in a hybrid liquid-solid dielectric electrostatic generator.', Journal of applied physics., 106 (4). 044108 and may be found at http://dx.doi.org/10.1063/1.3207834
Record Created:24 Oct 2012 10:05
Last Modified:29 Oct 2012 10:32

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