Current mapping cross-section

The coil structures are initially positioned coincident with the positive maxima and negative minima of the MSE current density map with their initial cross sectional areas being proportional to the value of the associated current densities. The coil locations and dimensions are then... 

In the third part we describe a quasi-three-dimensional (Q3D) physical model of the fuel cell. The model results in the distributions of concentration of gases, currents and reaction rates in each cell cross section, perpendicular to a long meander-like channel, that is, it provides a functional map of the cell. 

The outline of calculations is as follows. Let the cell voltage be fixed. For given along-the-channel profiles of feed gas concentrations, the internal problem returns the profile of the local current density. This local current density is then used to update the concentrations of feed gases in the channels. This procedure is repeated until convergence is reached. Thereby a point on the voltage current curve and a map of parameters in a cell cross section is obtained. 

Figure 10.3. Cross-sectional SEM backscattering image Oower left) and compositional maps showing the structure of a double-layer washcoat found in a current TWC. Both pure ceria (dispersed throughout an alumina-rich inner layer) and ceria-zirconia (outer layer) are present. (J. Hangas)...

Figure 7. a) Cross-section SEM image and b) chromium composition EDS map of a MCO coating on AL 441 HP after 7600 hours of testing at 800/900 °C in humidified air with an applied current density of 0.5 Acm. ... 

Fig. 7.37 The current density field for CO2 in a field perpendicular to a plane containing the nuclei, with B = 1 au. Cross-sections of the flow in the basin of an oxygen atom, showing the TV, and about the central carbon nucleus—insets with blue and red frame, respectively—are magnified in the bottom. The maximum intensity of the/ field is 3.55 au, truncated to 0.30 in the top-right contour map, which start at 0.03 au and are 0.03 apart...

---