1+1 Dimensional Model for PE Fuel Cells of Technical Size

摘要

The performance of polymer electrolyte fuel cells strongly depends on the cell water management. Based on a literature approach for the cell water distribution, a full cell model realized in a 1 + 1 dimensional approach was developed to get a deeper insight in the behaviour of the cell. The model can describe the co- and counter-flow regimes in a cell. A combination of these regimes was used, to describe the water management of the given technical cell flow field. The calculations allowed identifying the contributions of the different mechanisms of performance losses with respect to operating conditions, flow-field and electrochemical components.