Transient performance investigation of different flow-field designs of automotive polymer electrolyte membrane fuel cell (PEMFC) using computational fluid dynamics (CFD)

摘要: Transient performance of a polymer electrolyte membrane (PEM) fuel cell in terms the time-dependent current density profile that responds to varying potential is critical importance for an automotive PEM cell. A step change applied terminals simulate sudden load demand due engine startup or very high acceleration. The transient responses three most commonly used flow-fields, namely, parallel, single-serpentine, and interdigitated designs magnitude overshoot time taken adjust new equilibrium state are compared. results suggest serpentine flow-field outperforms its two counterparts as it balances satisfactory with expense acceptable pressure drop across hence appropriate design be cells.