Interfacial Gas-liquid Mass Transfer Modelling
Author(s)
J. George
Abstract
An analysis of experimental and numerical results concerning gas absorption
under different physico-chemical and hydrodynamic conditions is presented. The
role played by turbulent eddies which develop close to the free surface is
emphasized. A conceptual model, using a velocity scaling based on the turbulent
kinetic energy value present at the interface, is proposed for K^, the gas transfer
velocity.
1 Introduction
The knowledge of interfacial gas-liquid mass transfer is of fundamental
importance in environment. It controls the epuration of atmosphere by oceans
and therefore controls the overall budget of CO2 and other gases, it also controls
the phenomenon of acid rains. In the case of weakly soluble gases, for which
resistance to transfer takes place inside the liquid phase, interfacial absorption is
characterized by the mass transfer coefficient KL which depends on interfacial
dynamic phenomen
Keywords
Related Book
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