Application of the methods of thermodynamics of irreversible processes to the investigation of heat and mass transfer

1965 ◽  
Vol 9 (3) ◽  
pp. 189-202 ◽  
Author(s):  
A. V. Luikov
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Irreversible Processes ◽  
Thermodynamics Of Irreversible Processes

Heat and Mass Transfer during Drying of Lentil Based on the Non-Equilibrium Thermodynamics: A Numerical Study

2015 ◽  
Vol 365 ◽  
pp. 285-290 ◽  
Author(s):  
J.C.S. Melo ◽  
Antônio Gilson Barbosa de Lima ◽  
Wilton Pereira Silva ◽  
W.M.P. Barbosa de Lima
Keyword(s):  
Mass Transfer ◽  
Moisture Content ◽  
Heat And Mass Transfer ◽  
Numerical Study ◽  
Transport Coefficients ◽  
Irreversible Processes ◽  
Average Moisture Content ◽  
Convective Boundary ◽  
Vapor Flux ◽  
Oblate Spheroidal

This paper aims to present a mathematical model, based on the thermodynamics of irreversible processes to describe both the heat and mass transfer (liquid and vapor) during the drying of bodies with oblate spheroidal shape. The model was applied to describe drying of lentil grain, considering variables transport coefficients and convective boundary conditions at the surface of the solid. All equations were presented in oblate spheroidal coordinates and numerically solved by using the finite-volume method. Results of the average moisture content, average temperature, liquid flux, vapor flux, and moisture content and temperature distributions inside a lentil kernel during drying process (T=40 oC, RH=50% and v=0.3 m/s) were presented and analyzed.

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