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090 _aB-13476
245 1 0 _aA two-phase model to predict the enhanced mass transfer by bubble-induced convection in parallel-plate electrochemical reactors
490 0 _aElectrochimica Acta, 498, p.144606, 2024
500 _aArtículo
520 3 _aThis study introduces a two-phase model (Euler-Euler) designed to predict mass transfer enhancement resulting from electro-generated bubbles under varying conditions. Considering parameters such as bubble size, current density, turbulence, and fluid properties, the model aims to provide a comprehensive understanding of the relationship between bubble dynamics and mass transfer enhancement. The methodology for constructing the model, the incorporation of empirical correlations for bubble-liquid interactions, the validation against experimental data, and a sensitivity analysis are discussed. The model proves valuable in simulating mass transfer behaviour under bubble-induced convection, allowing for the straightforward exploration of the effects of different parameters. It is inferred that the exponent in the Schmidt (Sc) number in correlations for gas-evolving electrodes should be 0.5. Incorporating two dimensionless numbers, Reynolds (Reg) and Galileo (Ga), in a correlation is essential to fitting experimental results, accounting for the hydrodynamics of the two-phase system. Finally, the model facilitates the prediction of cell voltage during galvanostatic operations and the total current for a fixed cell potential difference. This capability enables the calculation of figures of merit, such as space time yield and specific energy consumption, offering practical insights for engineering scale-up and optimization
650 1 4 _aBUBBLE-INDUCED CONVECTION
650 1 4 _aELECTROCHEMICAL REACTORS
650 1 4 _aGAS-EVOLVING ELECTRODES
650 1 4 _aGAS-LIQUID FLOW
650 1 4 _aMASS TRANSFER ENHANCEMENT
650 1 4 _aOPENFOAM
650 1 4 _aTWO-PHASE HYDRODYNAMICS
700 1 2 _aColli, A. N.
700 1 2 _aBisang, J. M.
856 4 0 _uhttps://drive.google.com/file/d/1DCyKPcvee5CFXzDpGrlTFzLD3N5QxoFm/view?usp=drive_link
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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