Naslov
Thermal management of 1 kW edge cooled PEM fuel cell stack

Autori
Tolj, Ivan ; Penga, Željko ; Penga, Jure

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
1st Hydrogen and Fuel Cells conference

Mjesto i datum
Stellenbosch, Južnoafrička Republika, 24.04.2023. - 25.05.2023

Vrsta sudjelovanja
Plenarno

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
PEM fuel cell stack ; water and heat management ; edge cooling

Sažetak
Thermal management influence on the performance of edge-cooled 1 kW PEM fuel cell stack without external humidification of reactant gases was studied by means of advanced numerical analysis. A developed computational fluid dynamics model was used to study the influence of bipolar plate materials, operating pressure along the reactant channels and different cooling fin configurations on the water and heat balance in the stack. For this purpose, two numerical approaches were considered and compared for a prescribed load profile: lumped model and novel real time transient model. Results indicate that maximal and average temperatures of the stack are linearly correlated to the thermal conductivity of bipolar plate materials and maximal temperatures can be significantly higher. It was found that the operating delta pressure can be manipulated in order to increase the stack performance and that cooling fin redesign plays a major role in the overall temperature uniformity across the stack.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA