Transient modeling and simulation of a tubular solid oxide fuel cell

This paper describes the development of a computer model for simulating the transient operation of a tubular solid oxide fuel cell(SOFC). The model includes the electrochemical, thermal, and mass flow elements th;lt affect SOFC electrical output. The electrochemical and thermal parts of the model were developed and verified separately before they were combined to form the transient model. The results of model verification tests are presented. Transient simulations were conducted with constant reactant flows and constant inlet temperatures. The transient electrical response of the cell to a load change is described.