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Issue 23, 2011
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Strong enhancement of streaming current power by application of two phase flow

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Abstract

We show that the performance of a streaming-potential based microfluidic energy conversion system can be strongly enhanced by the use of two phase flow. Injection of gas bubbles into a liquid-filled channel increases both the maximum output power and the energy conversion efficiency. In single-phase systems the internal conduction current induced by the streaming potential limits the output power, whereas in a two-phase system the bubbles reduce this current and increase the power. In our system the addition of bubbles enhanced the maximum output power of the system by a factor of 74 and the efficiency of the system by a factor of 163 compared with single phase flow.

Graphical abstract: Strong enhancement of streaming current power by application of two phase flow

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Publication details

The article was received on 17 May 2011, accepted on 30 Sep 2011 and first published on 20 Oct 2011


Article type: Paper
DOI: 10.1039/C1LC20423H
Lab Chip, 2011,11, 4006-4011

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    Strong enhancement of streaming current power by application of two phase flow

    Y. Xie, J. D. Sherwood, L. Shui, A. van den Berg and J. C. T. Eijkel, Lab Chip, 2011, 11, 4006
    DOI: 10.1039/C1LC20423H

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