The Study Of Electro-Chemical Properties Of Sofc Made From Ni-Gdc Anode, Pbco-Gdc Cathode And Gdc Electrolytes

Abstract

The energy crisis and global warming, both of which are driven by the combustion of fossil fuels, have drawn a lot of attention to the need for researchers to identify alternative energy sources to minimize fossil fuel consumption. Because of their great efficiency and environmental friendliness, solid oxide fuel cells are a viable alternative energy source. The Electrochemical properties of the performance of Solid Oxide Fuel Cells was the goal of this work. A solid oxide fuel cell (SOFC) steady state mathematical model has been constructed, which can predict performance under varied operating and design conditions. The examination of critical parameters that have a significant impact on SOFC performance is a crucial element of this model. Solid oxide fuel cells are complex electrochemical devices that contain three basic components, a porous anode, an electrolyte membrane, and a porous cathode. The calculation of independent variables of current density, the independent variables of temperature, calculation of variables that are dependent on current density, and display of the result are the procedures follows in Math. Lab software modeling methodologies. The results of this model reveal that in a SOFC, ohmic resistance is the most common resistance, following by activation polarization, and concentration polarization is the least common. Anode conductivity increases at a faster rate than cathode conductivity with temperature. This indicates that the chemical species diffuses at a faster rate at the Ni-GDC side than at the PBCO-GDC side in order to generate electrical energy. The impact of operating and design conditions on cell performance is also beaning studies. The result showed that the cell potential fuel as current density increased, however the power density remained proportional to current density. Experimental data from the literature was used to validate the predicted performance. The predicted and experimental values were found to be in excellent agreement. Chapter:1 contains introductory aspects of fuel cell Chapter:2 describes the detailed literature reviews Chapter:3 described the methods and materials Chapter:4 describers the results and discussion and Chapter:5 describes the overall conclusion.