TY - BOOK AU - Colli,A.N. AU - Bisang,J.M. TI - Considerations about the gas fraction in two-phase electrochemical reactors by using a rigorous hydrodynamic model T2 - Chemical Engineering Science, 276, 118699, 2023 KW - ELECTROCHEMICAL REACTORS KW - GAS-EVOLVING ELECTRODES KW - GAS-LIQUID FLOW KW - OPENFOAM KW - TWO-PHASE HYDRODYNAMICS N1 - Artículo N2 - The experimental evidence that a limiting value of gas fraction is achieved in a gas-liquid dispersion as the gas volumetric flow rate is increased is explained by means of a rigorous hydrodynamic model. The mathematical treatment, based on the Eulerian concept applied to each phase, considers a population balance with a range of bubble sizes allowing the coalescence and breakup between them; and it is implemented in the OpenFOAM framework. It is concluded that the limiting gas fraction is a consequence of the increase of the gas velocity and the constancy of the drag term of the interfacial exchange moment as the volumetric gas flow is enlarged. A simplified hydrodynamic model is also reported that closely matches both the rigorous one and the experimental results under limiting operating conditions UR - https://drive.google.com/file/d/1y3t7_qEX69B4YhQK0nbuG3ijAOQqZE2V/view?usp=drive_link ER -