2011
DOI: 10.1039/c1lc20348g
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Dissolution of carbon dioxide bubbles and microfluidic multiphase flows

Abstract: We experimentally study the dissolution of carbon dioxide bubbles into common liquids (water, ethanol, and methanol) using microfluidic devices. Elongated bubbles are individually produced using a hydrodynamic focusing section into a compact microchannel. The initial bubble size is determined based on the fluid volumetric flow rates of injection and the channel geometry. By contrast, the bubble dissolution rate is found to depend on the inlet gas pressure and the fluid pair composition. For short periods of ti… Show more

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Cited by 82 publications
(71 citation statements)
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“…16, which shows the absolute amount of CO 2 absorbed in a single unit cell along the channel length. As can be seen, the curves collapse on a single one (Sun and Cubaud, 2011) when the mass transfer distance is less than about 40 mm in the fast mass transfer zone, indicating very little difference in the amount of CO 2 absorption into liquid between different operating conditions. This clearly confirms the findings of Zaloha et al (2012), namely that the amount of heat or mass transferred between gas and liquid phases in a unit cell is independent of the superficial two-phase velocity.…”
Section: Dissolution Ratementioning
confidence: 81%
“…16, which shows the absolute amount of CO 2 absorbed in a single unit cell along the channel length. As can be seen, the curves collapse on a single one (Sun and Cubaud, 2011) when the mass transfer distance is less than about 40 mm in the fast mass transfer zone, indicating very little difference in the amount of CO 2 absorption into liquid between different operating conditions. This clearly confirms the findings of Zaloha et al (2012), namely that the amount of heat or mass transferred between gas and liquid phases in a unit cell is independent of the superficial two-phase velocity.…”
Section: Dissolution Ratementioning
confidence: 81%
“…Here, experimental data fit very well with the expression L 0 /d 0 = 0.45u -1 . This property is shared between liquid/ liquid and liquid/gas microfluidic multiphase flows in the absence of significant compressibility effects (Sun and Cubaud 2011). The initial distance between two consecutive droplets L 0 is used as a control parameter to describe droplet arrangements in the microfluidic chamber.…”
Section: Droplet Formationmentioning
confidence: 99%
“…Multiphase transport in microchannels or porous media is of significant importance in many areas, such as microchemical engineering, 1,2 on-chip microfluidic analysis, 3,4 oil recovery, 5,6 CO 2 sequestration, 7,8 and fuel cells. 9 At the small scale, interactions between immiscible phases are mainly dominated by surface forces.…”
Section: Introductionmentioning
confidence: 99%