scholarly journals Mathematical equivalence between time-dependent single-rate and multirate mass transfer models

2015 ◽  
Vol 51 (5) ◽  
pp. 3166-3180 ◽  
Author(s):  
D. Fernàndez-Garcia ◽  
X. Sanchez-Vila
Keyword(s):  
Mass Transfer ◽  
Time Dependent ◽  
Mathematical Equivalence ◽  
Multirate Mass Transfer ◽  
Transfer Models

scholarly journals Heterogeneous mass transfer models for gas absorption in multiphase systems

2000 ◽  
Vol 55 (15) ◽  
pp. 2793-2812 ◽  
Author(s):  
D.W.F. Brilman ◽  
M.J.V. Goldschmidt ◽  
G.F. Versteeg ◽  
W.P.M. van Swaaij
Keyword(s):  
Mass Transfer ◽  
Gas Absorption ◽  
Multiphase Systems ◽  
Transfer Models

Study of Simultaneous Mass Transfer and Nucleation in Cryogenic Packed Bed for the Removal of CO2 from Natural Gas

2014 ◽  
Vol 625 ◽  
pp. 229-232 ◽  
Author(s):  
Abul Hassan Ali ◽  
Atif Muhammad Ashraf ◽  
Azmi Mohd Shariff ◽  
Saibal Ganguly
Keyword(s):  
Mass Transfer ◽  
Natural Gas ◽  
Packed Bed ◽  
Time Dependent ◽  
Time Varying ◽  
Simulation Studies ◽  
Avrami Model ◽  
Bed Porosity ◽  
Nucleation Model ◽  
Frost Layer

The paper presents the concept of cryogenic growth kinetics during separation of CO2from natural gas using Avrami nucleation model. The interface frost layer on the glass packing of cryogenic bed is assumed asgerm nuclei. The bed porosity is considered time dependent. The expression for time varying bed porosity is derived based on Avrami model. The experimentation was conducted to validate the model and the resulting simulation studies show good resemblance with experimental results.

Alpha Beta Discs

1983 ◽  
Vol 72 ◽  
pp. 55-67
Author(s):  
G.T. Bath ◽  
A.C. Edwards ◽  
V.J. Mantle
Keyword(s):  
Mass Transfer ◽  
Vertical Structure ◽  
Accretion Discs ◽  
Time Dependent ◽  
Simple Method ◽  
Dwarf Nova ◽  
Physical Conditions ◽  
Alpha Beta ◽  
Symbiotic Binaries

Following earlier work of Lynden-Bell & Pringle (1974) and Lightman (1974a, 1974b), Bath & Pringle (1981) have presented a simple method for studying the time-dependent evolution of viscous accretion discs. These models are axisymmetrlc, with the vertical structure reduced to integrated averages of local physical conditions. Published work examines models of dwarf nova eruptions driven by mass transfer bursts (Bath & Pringle 1981 – Paper I), eruptions produced by global viscous changes within the disc (Bath & Pringle 1982a Paper II), and the time-dependent properties of giant discs in symbiotic binaries (Bath & Pringle 1982b – Paper III).

Effects of Magnetic Field on an Unsteady Mixed Convection Flow of Nanofluids Containing Spherical and Cylindrical Nanoparticles

2016 ◽  
Vol 138 (6) ◽  
Author(s):  
Kalidas Das ◽  
Pinaki Ranjan Duari ◽  
Prabir Kumar Kundu
Keyword(s):  
Magnetic Field ◽  
Mass Transfer ◽  
Mixed Convection ◽  
Time Dependent ◽  
Convection Flow ◽  
Temperature Profiles ◽  
Mixed Convection Flow ◽  
Shooting Technique ◽  
Similarity Transformations ◽  
Unsteady Mixed Convection

The present article gives a ray of light on the effects of magnetic field on an unsteady mixed convection flow of nanofluids containing nanoparticles which are spherical and cylindrical in nature. The unsteadiness in the flow is mainly caused by time dependent stretching velocity and temperature of the sheet at the surface. The governing transportation equations are first transformed into ordinary differential equations by using similarity transformations and then solved by employing Runga–Kutta–Frelberg method with shooting technique. The influence of various parameters on velocity and temperature profiles as well as wall shear stress and the rate of mass transfer are discussed through graphs and tables. The results for regular fluid (water) from the study are in excellent agreement with the results reported in the literature.

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