Abstract
We examine the complete coupled thermoelectrochemical system that describes reaction problems. The cross effects, namely the thermoelectric (Peltier-Seebeck), the thermodiffusion (Dufour-Soret), and the electrochemical diffusion, occur as reciprocal phenomena of irreversible processes. We deal with convective/radiative heat-transfer boundary conditions on a part of the boundary. The objective is their application to electrolysis, Li batteries, and fuel cells. The existence of stationary solutions for the theoretical model is found, under different smallness conditions on the data, via a fixed point argument.
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Abbreviations
- c :
-
molar concentration (molarity) mol · m−3
- c v :
-
specific heat capacity (at constant volume) J · K−1 · kg−1
- D :
-
diffusion coefficient m2 · s−1
- D′:
-
Dufour coefficient m2 · s−1 · K−1
- E :
-
activation energy J · mol−1
- e :
-
specific internal energy J · kg−1
- F :
-
Faraday constant 9.6485 × 104 C · mol−1
- h :
-
heat transfer coefficient W · m−2 · K−1
- k :
-
thermal conductivity W · m−1 · K−1
- m :
-
concentration (molality) mol · kg−1
- q :
-
specific electric charge C · kg−1
- R :
-
gas constant 8.314 J · mol−1 · K−1
- S :
-
Soret coefficient (thermal diffusion) m2 · s−1 · K−1
- s :
-
specific entropy J · K−1 · kg−1
- u :
-
mobility m2 · V−1 · s−1
- z :
-
valence (dimensionless)
- α :
-
Seebeck coefficient V #x00B7; K−1
- μ :
-
chemical potential J · mol−1
- φ :
-
electric potential V = J · C−1
- π :
-
Peltier coefficient V
- ρ :
-
density kg · m−3
- σ :
-
electrical conductivity S · m−1
- θ :
-
absolute temperature K
- ▽:
-
gradient
- a:
-
anode
- c:
-
cathode
- i:
-
ionic component
- w:
-
wall
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Consiglieri, L. On the posedness of thermoelectrochemical coupled systems. Eur. Phys. J. Plus 128, 47 (2013). https://doi.org/10.1140/epjp/i2013-13047-7
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DOI: https://doi.org/10.1140/epjp/i2013-13047-7