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

Xie, Yanbo and Sherwood, John D. and Shui, Lingling and Berg van den, Albert and Eijkel, Jan C.T. (2011) Strong enhancement of straeming current power by application of two phase flow. Lab on a Chip, 11 (23). pp. 4006-4011. ISSN 1473-0197

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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.
Item Type:	Article
Copyright:	© 2011 Royal Society of Chemistry
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Biomedical and Environmental Sensor systems (BIOS)
Link to this item:	http://purl.utwente.nl/publications/78645
Official URL:	http://dx.doi.org/10.1039/c1lc20423h
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