Data di Pubblicazione:
2005
Abstract:
A computational fluid dynamic (CFD) analysis was used as a useful tool to obtain numerical relationships among similar flow-field designs
having different active areas. Assuming that, at fixed current density, the porous layer velocity distribution calculated for the smallest size
geometry was the optimal, a scale-up methodology has been proposed and implemented in software. It allows acquisition of the scaled-up
flow-field by multiplying the reference cell parameters by suitable factors (scale factors). A calibration methodology has also been proposed
by the introduction of a feedback factor evaluated by CFD analysis. A first application of this procedure has been carried out to scale-up a
5-125 cm2 cell.
having different active areas. Assuming that, at fixed current density, the porous layer velocity distribution calculated for the smallest size
geometry was the optimal, a scale-up methodology has been proposed and implemented in software. It allows acquisition of the scaled-up
flow-field by multiplying the reference cell parameters by suitable factors (scale factors). A calibration methodology has also been proposed
by the introduction of a feedback factor evaluated by CFD analysis. A first application of this procedure has been carried out to scale-up a
5-125 cm2 cell.
Tipologia CRIS:
01.01 Articolo in rivista
Keywords:
CFD; Scale-up; Fuel cell; Flow-field design
Elenco autori:
Gatto, Irene; Urbani, Francesco; Barbera, Orazio; Giacoppo, Giosue'; Squadrito, Gaetano; Passalacqua, Enza
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