Energy from streaming current and potential

Wouter Olthuis, Bob Schippers, Jan C.T. Eijkel, Albert van den Berg

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    It is investigated how much energy can be delivered by a streaming current source. A streaming current and subsequent streaming potential originate when double layer charge is transported by hydrodynamic flow. Theory and a network model of such a source is presented and initial experimental results are given, showing a supplied power of 20 nW obtained by a pressure difference of 1 atm over a glass plug of 60 mm in diameter and 3.5 mm thickness with pore sizes of 1.0–1.6 μm, using a 1 mM KCl solution. An expression for the power transfer efficiency is derived and discussed.
    Original languageUndefined
    Pages (from-to)385-389
    Number of pages5
    JournalSensors and Actuators B: Chemical
    Publication statusPublished - 11 Nov 2005


    • IR-53235
    • Streaming potential
    • Streaming current
    • Zeta potential
    • EWI-18424
    • METIS-225721

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