Electrical charge balance

Before leaving the equation, let us check the electric charge balance ... 

Final check Both [H+] and [OH-] are small compared with x and will have no appreciable effect on the electrical charge balance. 

Since cGe4+ is one fourth the surface hole concentration, Chs, due to the electrical charge balance (cGe4+ = 4chs), the surface ion concentration, cGl,4, is described as a function of both the space charge potential, Acj>sc, and the hole concentration, cj[, in the bulk of the semiconductor ... 

The function of electrolyte is to separate cathode and anode electronically so the electrons are forced to flow through external circuit. At the same time, the electrolyte must allow the oxygen ions to diffuse through it. The electrolyte usually determines the operating temperature of the fuel cell. It also allows the flow of charged ions from one electrode to the other to maintain the overall electrical charge balance. 

Now we need to determine from the electrical charge balance inside the microtube. 

Mass balance (including the electrical charge balance) for all reactants and products. 

Electrical Charge Balance In the non-steady-state regime the electrical charge balance equation at the disk surface is... 

The transport processes including electrolytic migration and chemical diffusion, as most of the models assume no convection inside the crevice gap The mass and electrical charges balance in the crevice solution, across the metal-solution interfaces, and at the mouth of the crevice... 

The electrical charge balance inside (and in one instance outside) the crevice is modeled in two ways ... 

It is quite possible that the state of (Al,Si) ordering in diopside CaTs solid solutions is greater than completely random. Short-range order mi t be present which would not be observable in an X-ray diffraction experiment. Various models are possible. A simple model was developed by Wood (1975 and personal communication) in which electrical charge balance is maintained on a unit-cell scale. In this model, each unit cell contains four "molecules", which may be all diopside, all CaTs, or any combination of these. The unit-cell contents are internally randomly mixed with regard to the tetrahedral sites and the M sites. 

Fig. 1 Heat and electric charge balances in finite element volume.

Fig. 1 Meshed model for fmite-element (FE) analysis Fig. 2 Heat and electric charge balances in FE volume...

Analytical Model. The internal heat transfer and electric charge transportation are analyzed using the thermal diffusion and charge transportation equations. The differential equations for the heat conduction at each finite element volume are solved on the basis of energy conservation. The heat and electric charge balances in a control volume are shown in Fig. 2, where q and J denote the heat and current density, respectively. 

---