Mass transfer contributions of solid particles to gas permeation in viscous laminar tube flow

1988 ◽  
Vol 11 (1) ◽  
pp. 25-31
Author(s):  
Brigitte Haase ◽  
Klaus Bauckhage
Keyword(s):  
Mass Transfer ◽  
Gas Permeation ◽  
Solid Particles ◽  
Tube Flow ◽  
Laminar Tube Flow

Laminar Swirling Flow in a Tube With Surface Mass Transfer

1970 ◽  
Vol 37 (4) ◽  
pp. 936-944 ◽  
Author(s):  
R. B. Kinney ◽  
E. M. Sparrow
Keyword(s):  
Mass Transfer ◽  
Radial Velocity ◽  
Swirling Flow ◽  
Fluid Injection ◽  
Tube Flow ◽  
Fully Developed Flow ◽  
Surface Mass ◽  
Surface Mass Transfer ◽  
Laminar Tube Flow ◽  
Range Of Values

The decay of swirl and the associated axial and radial velocity perturbations are analyzed for laminar tube flow with surface mass transfer. The initial swirl distribution is that corresponding to a fully developed flow characterized by injection or withdrawal of fluid having both circumferential and radial components of velocity. Consideration is also given to swirling flows in impermeable tubes, and new results are obtained by specializing the general solution for the case of surface mass transfer. Numerical results are presented for a range of values of the mass transfer Reynolds number. Among the findings, it is observed that at the higher rates of fluid injection, the decay of the swirl requires a much longer length of run than does the decay of the axial and radial velocity perturbations.

The effect of coupled heat and mass transfer on the saturation ration in laminar tube flow

2000 ◽  
Vol 31 ◽  
pp. 930-931 ◽  
Author(s):  
Francisco Ezquerra Larrodé ◽  
Christos Housiadas ◽  
Yannis Drossinos
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Tube Flow ◽  
Laminar Tube Flow

Pressure Drop and Mass Transfer Studies in Liquid Fluidized Beds

2006 ◽  
Author(s):  
Bhagavatula Venkata Ramana Murthy
Keyword(s):  
Mass Transfer ◽  
Pressure Drop ◽  
Liquid Velocity ◽  
Water System ◽  
Solid Particles ◽  
Sugar Water ◽  
Minimum Fluidization Velocity ◽  
Liquid Systems ◽  
Mass Transfer Studies ◽  
Solid Liquid

Fluidized beds are widely used in industries for mixing solid particles with liquids as the solid is vigorously agitated by the liquid passing through the bed and the mixing of the solid ensures that there are practically no temperature gradients in the bed even with exothermic or endothermic reactions (Mixing and the segregation in a liquid fluidized of particles with different sizes and densities", The Canadian Journal of Chemical Engineering, 1988). The violent motion of the solid particles also gives high heat transfer rates to the wall or to cooling tubes immersed in the bed. Because of the fluidity of the solid particles, it is easy to pass solid from one vessel to another. In the present experimental work, the relative density between solid and liquid phases on pressure drop under fluidized condition has been studied using the solid-liquid systems namely, glass beads-water, glass beads-kerosene, plastic beads-kerosene and diamond sugar-kerosene. Pressure drop - liquid velocity and void fraction - liquid velocity relationships have been found for all the mentioned solid-liquid systems under fluidized condition and results have been noted. The effect of the nature of the fluid on the minimum fluidization velocity and the pressure drop has been studied. In addition to the pressure drop studies, mass transfer studies have also been conducted with diamond sugar-water system with and without fluidization and results have been obtained. In addition to these, comparison of bed voidage, pressure drop and minimum fluidization velocity between denser and lighter liquids have been studied and the results have been obtained. Also, the value of rate of mass transfer with fluidization is compared that without fluidization for diamond sugar-water system and the results have been obtained.

Mass transfer between solid particles and liquid in a three phase fluidized bed

1987 ◽  
Vol 65 (2) ◽  
pp. 228-236 ◽  
Author(s):  
A. Prakash ◽  
C. L. Briens ◽  
M. A. Bergougnou
Keyword(s):  
Mass Transfer ◽  
Fluidized Bed ◽  
Solid Particles ◽  
Three Phase
Sign in / Sign up

Export Citation Format

Share Document