Microfluidic energy conversion by application of two phase flow

Yanbo Xie

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

87 Downloads (Pure)

Abstract

We investigated the energy conversion performance by the streaming potential using totally different approaches. By introducing gas bubbles, which can be considered as perfect insulators, the internal electrical resistance of the system can be increased, decreasing the conduction current. Following this approach, according to an equivalent circuit analysis, experimentally we achieved over 163 times efficiency increase compared with single water phase flow. The absolute efficiency however was still quite low, due to the corner conduction and high bulk conductivity of the solution used, as well as the use of microchannels. Hydrophobic surfaces are expected to further increase the energy conversion efficiency according to our preliminary experiments.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • van den Berg, Albert , Supervisor
  • Eijkel, Jan C.T., Supervisor
Thesis sponsors
Award date26 Sep 2013
Place of PublicationZutphen
Publisher
Print ISBNs978-90-365-0744-8
DOIs
Publication statusPublished - 26 Sep 2013

Fingerprint

energy conversion
two phase flow
conduction
energy conversion efficiency
microchannels
electrical resistance
equivalent circuits
bubbles
insulators
conductivity
gases
water

Keywords

  • EWI-23688
  • IR-87267
  • METIS-297541

Cite this

Xie, Yanbo. / Microfluidic energy conversion by application of two phase flow. Zutphen : Universiteit Twente, 2013. 144 p.
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Xie, Y 2013, 'Microfluidic energy conversion by application of two phase flow', Doctor of Philosophy, University of Twente, Zutphen. https://doi.org/10.3990/1.9789036507448

Microfluidic energy conversion by application of two phase flow. / Xie, Yanbo.

Zutphen : Universiteit Twente, 2013. 144 p.

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

TY - THES

T1 - Microfluidic energy conversion by application of two phase flow

AU - Xie, Yanbo

PY - 2013/9/26

Y1 - 2013/9/26

N2 - We investigated the energy conversion performance by the streaming potential using totally different approaches. By introducing gas bubbles, which can be considered as perfect insulators, the internal electrical resistance of the system can be increased, decreasing the conduction current. Following this approach, according to an equivalent circuit analysis, experimentally we achieved over 163 times efficiency increase compared with single water phase flow. The absolute efficiency however was still quite low, due to the corner conduction and high bulk conductivity of the solution used, as well as the use of microchannels. Hydrophobic surfaces are expected to further increase the energy conversion efficiency according to our preliminary experiments.

AB - We investigated the energy conversion performance by the streaming potential using totally different approaches. By introducing gas bubbles, which can be considered as perfect insulators, the internal electrical resistance of the system can be increased, decreasing the conduction current. Following this approach, according to an equivalent circuit analysis, experimentally we achieved over 163 times efficiency increase compared with single water phase flow. The absolute efficiency however was still quite low, due to the corner conduction and high bulk conductivity of the solution used, as well as the use of microchannels. Hydrophobic surfaces are expected to further increase the energy conversion efficiency according to our preliminary experiments.

KW - EWI-23688

KW - IR-87267

KW - METIS-297541

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DO - 10.3990/1.9789036507448

M3 - PhD Thesis - Research UT, graduation UT

SN - 978-90-365-0744-8

PB - Universiteit Twente

CY - Zutphen

ER -