Investigation of oil-water flow regimes and pressure drops in mini-channels

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dc.contributor.author Bultongez, Kevin K.
dc.contributor.author Derby, Melanie M.
dc.date.accessioned 2019-03-01T23:30:44Z
dc.date.available 2019-03-01T23:30:44Z
dc.date.issued 2017-11-01
dc.identifier.uri http://hdl.handle.net/2097/39441
dc.description Citation: Bultongez, K.K., Derby, M. M. (2017).Investigation of oil-water flow regimes and pressure drops in mini-channels. International Journal of Multiphase Flow,96,101-112. https://doi.org/10.1016/j.ijmultiphaseflow.2017.07.001
dc.description.abstract Oil-water flow regimes were studied in 2.1 mm and 3.7 mm borosilicate glass tubes; both tubes exhibit Eötvös numbers less than one and therefore surface tension forces may be more important in these mini-channels compared to larger diameter tubes. A closed-loop, adiabatic experimental apparatus was constructed and validated using water. This study focused on tap water and two mineral oils (i.e., Parol 70 and 100) with a density of 840 kg/m3 but a factor of two difference in viscosity. Experiments included a wide range of oil superficial velocities (e.g., 0.84–6.84 m/s for D = 2.1 mm and 0.27–3.30 m/s for D = 3.7 mm) and water superficial velocities (e.g., 0.21–7.69 m/s for D = 2.1 mm and 0.07–4.96 m/s for D = 3.7 mm). Stratified, annular, intermittent, and dispersed flow regimes were observed in both tubes, although the annular flow regime was more prevalent in the smaller tube. Pressure drops increased with decreasing tube diameter and were flow regime dependent. Flow maps were created for these mini-channels and equations adapted from Brauner and Maron (1999) were used to predict the flow regime transitions. The effects of viscosity were modest, although increased oil viscosity enhanced stability of oil-water flows.
dc.language.iso en_US
dc.relation.uri https://doi.org/10.1016/j.ijmultiphaseflow.2017.07.001
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.uri https://www.elsevier.com/about/policies/sharing
dc.subject Mini-channel
dc.subject Oil-water
dc.subject Flow regime
dc.subject Flow regime map
dc.title Investigation of oil-water flow regimes and pressure drops in mini-channels
dc.type Text
dc.date.published 2017
dc.citation.doi 10.1016/j.ijmultiphaseflow.2017.07.001
dc.citation.epage 112
dc.citation.issn 0301-9322
dc.citation.jtitle International Journal of Multiphase Flow
dc.citation.spage 101
dc.citation.volume 96
dc.citation Bultongez, K.K., Derby, M. M. (2017).Investigation of oil-water flow regimes and pressure drops in mini-channels. International Journal of Multiphase Flow,96,101-112. https://doi.org/10.1016/j.ijmultiphaseflow.2017.07.001
dc.description.embargo 2019-07-14
dc.description.version Article: Accepted Manuscript (AM)


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