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In this paper water management in proton exchange membrane (PEM) fuel cell is considered. First mass conservation law for water is applied. Next proton transport is described by the Nernst-Planck equation and liquid water convection velocity is eliminated by the Schlögl equation. Electro-osmotic drag coefficient is related to hydrogen index and experimentally determined swelling coefficient.
The surface potential distribution of buried X80 steel under cathodic protection was calculated by finite element method. After comparing the results of simulation and experiment, the advantages and disadvantages of the numerical simulation method used in the present paper were discussed.
This paper presents the use of coupled BEM/FEM method by the numeric calculations of protection current/potential distribution when the cathodic protection system with galvanic anodes is applied. Cathodic protection (CP) system is very efficient system for protection of underground metal object from corrosion. The most important phase by installing the CP system is to optimally and correctly define...
Using solar power is one of the most important challenge of today technology. A big effort is devoted in going beyond traditional semiconductor, especially silicon based, solar cells. A well established and promising technology is represented by electrochemical dye solar cells (DSC). Their functioning is a complicated interplay of different parts deeply interconnected which requires a model able to...
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