Modeling and Analysis of a High Pressure Operating Fuel Cell Hydrogen/Air system

This paper presents a study of the fuel cell system performance operating at high pressure and different temperature levels. A polymer electrolyte fuel cell (PEFC) has analyzed in according with the possibility of using in transport applications. Therefore, it begin with the description of the model of the fuel cell which has been developed using a combination between empirical and theoretical modeling techniques. This model enables to simulate fuel cells V-J curves in dependences with the stack temperature and the oxygen partial pressure. In addition, it can be used to study the influence of the gases management (pressure) on the fuel cell stack performances. The study continues with the modeling and simulation of a turbo compressor as the active element for the compression air subsystem. One has used a least squares method for nonlinear curves fitting of fuel cell and compressor.