PREDICTION OF SOLID OXIDE FUEL-CELL POWER-SYSTEM PERFORMANCE THROUGH MULTILEVEL MODELING

This paper presents an integrated multi-level model of a solid oxide f uel cell system, which accounts for the effects of concentration, acti vation and ohmic polarizations on single-cell performance, as well as the cell-to-cell interactions in a cell stack module. Furthermore, thi s model extends the work of Lu and Mahoney (1988) and Harvey and Richt er (1994) by including the performance of a cell stack operating with a fuel reformer, heat exchangers, and a steam generator over a range o f design parameters. This paper also demonstrates the procedure by whi ch a single-cell model is scaled to a system model.