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Transient CFD Analysis of 1 kW Air-Cooled PEM Fuel Cell Stack During Startup (CROSBI ID 675931)

Prilog sa skupa u zborniku | prošireni sažetak izlaganja sa skupa | međunarodna recenzija

Penga, Željko ; Tolj, Ivan ; Barbir ; Frano Transient CFD Analysis of 1 kW Air-Cooled PEM Fuel Cell Stack During Startup // Hypothesis XIV / Lo Faro, Massimiliano (ur.). 2019. str. 196-199

Podaci o odgovornosti

Penga, Željko ; Tolj, Ivan ; Barbir ; Frano

engleski

Transient CFD Analysis of 1 kW Air-Cooled PEM Fuel Cell Stack During Startup

Start-up and variable load operation of a 1 kW air-cooled stack is investigated via computational fluid dynamics (CFD) analysis. The results of the transient analysis indicate that the temperatures inside the air-cooled stack are up to 27 °C higher when compared to the temperatures on the outside walls of the bipolar plates and this indicates a requirement for development of a new method for PEM fuel cell operation to increase the relative humidity of the reactants internally and prevent membrane dehydration. The novelty of this work is the method for increasing the relative humidity along the active area of the cell by intentionally increasing the pressure drop across the flow field, resulting in higher performance of the cell. The CFD model also investigates the influence of altering the bipolar plate material on the overall heat transfer inside the cell in order to achieve a similar effect with success in both cases

CFD ; fuel cells ; water management

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Podaci o prilogu

196-199.

2019.

objavljeno

Podaci o matičnoj publikaciji

Hypothesis XIV

Lo Faro, Massimiliano

978-88-942723-1-4

Podaci o skupu

Hypothesis XIV

poster

24.04.2019-26.04.2019

Foz do Iguaçu, Brazil

Povezanost rada

Strojarstvo