Non-linear mass transfer from a solid spherical particle dissolving in a viscous fluid

2011 ◽  
Vol 54 (13-14) ◽  
pp. 2998-3003 ◽  
Author(s):  
M. Doichinova ◽  
O. Lavrenteva ◽  
Chr. Boyadjiev
Keyword(s):  
Mass Transfer ◽  
Viscous Fluid ◽  
Spherical Particle ◽  
Linear Mass ◽  
Non Linear

scholarly journals The influence of the non-linear diffusion on the mass transfer of a packaging contaminant into foodstuffs

2018 ◽  
Vol 26 (2) ◽  
pp. 135-144 ◽  
Author(s):  
Gheorghe Juncu
Keyword(s):  
Mass Transfer ◽  
Diffusion Coefficient ◽  
Balance Equation ◽  
Mass Balance Equation ◽  
Linear Mass ◽  
Linear Diffusion ◽  
Kirchhoff Transformation ◽  
Mass Transfer Mechanism ◽  
Concentration Variable ◽  
Non Linear

Abstract The unsteady mass transfer of the packaging constituents to a food has been analysed. The diffusion coefficient inside the packaging was considered concentration - variable while the food was considered concentration spatially gradientless. A well-known technique (Kirchhoff transformation) was used to solve the non-linear mass balance equation. The influence of the non-linear diffusion on the mass transfer mechanism and rate was analysed for different values of the partition coefficient and dilution coefficient.

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