CFD studies on particle-to-fluid mass and heat transfer in packed beds: Free convection effects in supercritical fluids

2007 ◽  
Vol 62 (18-20) ◽  
pp. 5503-5511 ◽  
Author(s):  
A. Guardo ◽  
M. Coussirat ◽  
F. Recasens ◽  
M.A. Larrayoz ◽  
X. Escaler
Keyword(s):  
Heat Transfer ◽  
Free Convection ◽  
Supercritical Fluids ◽  
Packed Beds ◽  
Fluid Mass ◽  
Mass And Heat Transfer

Simultaneous mass and heat transfer to a plate electrode in the region of free convection with antiparallel fluxes of mass and heat

1983 ◽  
Vol 48 (8) ◽  
pp. 2213-2231 ◽  
Author(s):  
Petr Novák ◽  
Ivo Roušar
Keyword(s):  
Heat Transfer ◽  
Free Convection ◽  
Vertical Plate ◽  
Limiting Current ◽  
Navier Stokes ◽  
Plate Electrode ◽  
Criterion Equation ◽  
Transfer Equations ◽  
Current Densities ◽  
Mass And Heat Transfer

Simultaneous transfer of heat and ions to a vertical plate electrode in the region of free convection was treated mathematically by solving the Navier-Stokes, convective diffusion, and convective heat transfer equations. The direction of flow due to heat flux was considered opposite to that due to flux of ions. A criterion equation was proposed for the calculation of the Sherwood criterion with an error smaller than 2%. This was verified experimentally by measuring the limiting current densities for electrolytes containing K4Fe(CN)6 and K3Fe(CN)6 with KOH as base electrolyte.

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