System and method for controlling electric fields in electro-hydrodynamic applications
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United States of America Patent
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Nov 24, 2015
Grant Date -
Aug 23, 2012
app pub date -
Oct 18, 2011
filing date -
Jan 22, 2009
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Abstract
An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a second electric field opposing the first, such that the net electric field at a predetermined distance downstream from the injector is approximately zero; an upstream collector that collects a second species of particles having a polarity opposite the first particle species; a downstream collector that collects the charged particle; and a load coupled between the downstream collector and the upstream collector, wherein the load converts the kinetic energy of the gas stream into electric power.
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