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Electrohydrodynamics
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== Water electrokinetics == In October 2003, Dr. Daniel Kwok, Dr. Larry Kostiuk and two graduate students from the [[University of Alberta]] discussed a method to convert hydrodynamic to [[energy conversion|electrical energy]] by exploiting the natural electrokinetic properties of a liquid such as ordinary [[tap water]], by pumping fluid through tiny micro-channels with a pressure difference.<ref>{{cite journal|last1=Yang|first1=Jun|last2=Lu|first2=Fuzhi|last3=Kostiuk|first3=Larry W.|last4=Kwok|first4=Daniel Y.|title=Electrokinetic microchannel battery by means of electrokinetic and microfluidic phenomena|journal=Journal of Micromechanics and Microengineering|volume=13|issue=6|pages=963β970|language=en|doi=10.1088/0960-1317/13/6/320|date=1 January 2003|bibcode=2003JMiMi..13..963Y|s2cid=250922353 }}</ref> This technology could lead to a practical and clean energy storage device, replacing batteries for devices such as mobile phones or calculators which would be charged up by simply compressing water to high [[pressure]]. Pressure would then be released on demand, for the fluid to flow through micro-channels. When water travels, or streams over a surface, the ions in the water "rub" against the solid, leaving the surface slightly charged. Kinetic energy from the moving ions would thus be converted to electrical energy. Although the power generated from a single channel is extremely small, millions of parallel micro-channels can be used to increase the power output. This [[streaming potential]], water-flow phenomenon was discovered in 1859 by German physicist [[Georg Hermann Quincke]]. {{citation needed|date=April 2017}}<ref name=Kirby/><ref name=Bruus/><ref name=Levich>{{cite book | author=Levich, V.I. | title=Physicochemical Hydrodynamics | year=1962 }}</ref>
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