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Title: Scalability of mass transfer in Taylor flow in capillaries
Authors: Nappo, V
Kuhn, S
4th Micro and Nano Flows Conference (MNF2014)
Keywords: Taylor flow;Mass transfer;Capillary;Two phase flow;Scale up
Issue Date: 2014
Publisher: Brunel University London
Citation: 4th Micro and Nano Flows Conference, University College London, UK, 7-10 September 2014, Editors CS König, TG Karayiannis and S. Balabani
Series/Report no.: ID 76;
Abstract: In the present work, gas–liquid hydrodynamics and mass transfer in horizontal circular capillaries of different diameters are investigated experimentally. The capillary diameters range from 0.5 to 3.2 mm in order to investigate the mass transfer process on both micro and milli scale. The mass transfer is studied using the chemical absorption of CO2 into an alkaline solution. A high speed camera is used to capture images of the flow. Subsequently, the images are analysed thought a specifically developed Matlab code. Such a code is able to extract important hydrodynamic parameters (bubble length, liquid slug length, void fraction, film thickness, bubble velocity etc.) that affect the mass transfer coefficient, kLa. The obtained results both for the hydrodynamics of the flow and for the mass transfer are compared with those present in literature, and the scalability of the mass transfer coefficient is assessed.
Description: This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the Process Intensification Network, the Institution of Mechanical Engineers, the Heat Transfer Society, HEXAG - the Heat Exchange Action Group, and the Energy Institute, ASME Press, LCN London Centre for Nanotechnology, UCL University College London, UCL Engineering, the International NanoScience Community,
Appears in Collections:Brunel Institute for Bioengineering (BIB)
The Brunel Collection

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