NUMERICAL analysis of the effects of current collector plate geometry on performance in a cylindrical PEM fuel cell

Gunduz, Tunahan; Demircan, Tolga

doi:10.1016/j.ijhydene.2022.03.221

Cited by 5 publications

(1 citation statement)

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“…They also stated that the cylindrical fuel cell can be used especially in portable applications due to its higher volumetric and gravimetric power density compared to the planar fuel cell. Gunduz and Demircan [ 18 ] investigated the effect of current collector plate geometry on cylindrical fuel cell performance. For this purpose, they designed four different anode and cathode flow channels as straight‐straight, helix‐helix, straight‐helix, and helix‐straight.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Working Conditions on Performance of Planar and Cylindrical Proton Exchange Membrane Fuel Cells

Cellek,

Demircan

2023

Global Challenges

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In this study, the effects of varying operating conditions on cell performance in cylindrical and planar PEM (Proton Exchange Membrane) fuel cells with equal geometrical properties are investigated numerically. For this purpose, planar and cylindrical fuel cells are analyzed and the changes in performance are compared with each other. In particular, by increasing the temperature from 363 to 373 K, the current density decreases by ≈50%. When the pressure is increased from 1 atm to 1.2 atm, the current density increases by 20% and 2% in cylindrical and planar fuel cells, respectively. When the stoichiometric ratio is increased from 1 to 1.5, the current density increases by 25% and 32% for cylindrical and planar fuel cells, respectively. However, it decreases slightly after 1.5 value of the stoichiometric ratio. As a result, it is seen that temperature has a more significant effect on fuel cell performance than other operating conditions. It can be said that the planar fuel cell can operate with more stable performance than the cylindrical fuel cell when the temperature and pressure are changed. However, in the case of changing the stoichiometric ratio, there is no significant difference in the operating performance of both fuel cells.

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Section: Introductionmentioning

confidence: 99%