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Title: Evaluation of electroosmotic pumping effect in microporous media flow
Authors: Li, B
Yan, Y
3rd Micro and Nano Flows Conference (MNF2011)
Keywords: Microporous flow;Electroosmosis pumping
Issue Date: 2011
Publisher: Brunel University
Citation: 3rd Micro and Nano Flows Conference, Thessaloniki, Greece, 22-24 August 2011
Abstract: In this paper, the electroosmotic flow (EO) in desiccant powders of micro porous is investigated regarding to the flow rate caused by the electroosmosis and the gravity. In particular, the coupling effect of electroosmosis and dehumidification in the flow is studied. It is noticeable that the actual electroosmosis pumping force maintains at a certain rate (10μL/min for the designed system). It is interpreted that the actual voltage from bench power is kept constant which exerts same effect of electric field on the desiccant particles. And during this stage the resistance inside the channel deceases with the rate of water entering into the electroosmosis pumping section which is affected by the capacity of dehumidification of the desiccant particles. Moreover, the mass flow rate by the effect of electroosmosis pumping can be achieved at 0.746 gm-2m-1 under 5V DC supply. These experimental results in this study provide useful instructions of electroosmosis performance for designing the micro porous channel in such as filtering the compounds of drug delivery, particle purification and liquid separation applications etc.
Description: This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, Aristotle University of Thessaloniki, University of Thessaly, IPEM, the Process Intensification Network, the Institution of Mechanical Engineers, the Heat Transfer Society, HEXAG - the Heat Exchange Action Group, and the Energy Institute.
ISBN: 978-1-902316-98-7
Appears in Collections:Brunel Institute for Bioengineering (BIB)
The Brunel Collection

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