Abstract
The present study concerns a fuel processor (Steam Methane Reformer, SMR) that reforms the fuel into hydrogen-rich mixture to feed the anode side of a fuel cell stack. In this system, when the stack load is changing, the fuel processor needs both to quickly regulate the amount of hydrogen to the anode to avoid starvation or wasted hydrogen and also to maintain operational temperature required for high conversion efficiency. The fuel processor is described as a dynamic pseudo-homogeneous one-dimensional tubular reactor. For the fuel cell a detailed dynamic two-dimensional model was obtained by writing the constitutive laws in the solid part of the cell for heat and conservation of heat and mass in the air and fuel channels. Comprehensive representation of resistive cell losses, reaction kinetics for the reforming and heat conduction through the solid part of the cell is also included in the modeling. The differences in the transient behavior of these two sub-systems and their interaction are investigated under load changes and feed disturbances, in addition to steady state.
Keyword: SOFC, Methan, Reforming, Dynamic
Keyword: SOFC, Methan, Reforming, Dynamic
| Original language | English |
|---|---|
| Title of host publication | ASME Internatinal Mechanical Engineering Congress |
| Publication date | 2005 |
| Pages | GT2005-6860 |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | ASME Internatinal Mechanical Engineering Congress - Reno-Tahoe, Nevada, USA Duration: 1 Jan 2005 → … |
Conference
| Conference | ASME Internatinal Mechanical Engineering Congress |
|---|---|
| City | Reno-Tahoe, Nevada, USA |
| Period | 01/01/2005 → … |