Heterogeneous mass transfer models for gas absorption in multiphase systems

experimental investigation of power consumption, mass transfer coefficient and flow regime in gas-liquid dispersion systems

Mass constraints from multiphase cooling flow models

I review the multiphase cooling flow equations that reduce to a relatively simple form for a wide class of self-similar density distributions described by a single parameter, k. It is shown that steady-state cooling flows are not consistent with all possible emissivity profiles which can therefore be used as a test of the theory. In combination, they provide strong constraints on the temperatur...

Multiphase Mass Transfer in Iron and Steel Refining Processes

In the present chapter, a computational fluid dynamics (CFD) model for multiphase flow was developed, allowing the simulation of two different processes, the desulfurization of hot metal in a ladle mechanically agitated by an impeller (KR process) and the desulfuri‐ zation of steel in a gas-agitated ladle. The model gives important information to charac‐ terize the fluid flow conditions, to def...

Heat and Mass Transfer in Turbulent Multiphase Channel Flow

Direct numerical simulation is used to assess the importance of compressibility in turbulent channel flow of a mixture of air and water vapor with dispersed water droplets. The dispersed phase is allowed to undergo phase transition, which leads to heat and mass transfer between the phases. We compare simulation results obtained with an incompressible formulation with those obtained for compress...

Role of Mass Transfer in Phase Transfer Catalytic Heterogeneous Reaction Systems