TY - JOUR
T1 - A One-Dimensional Computational Model to Identify Operating Conditions and Cathode Flow Channel Dimensions for a Proton Exchange Membrane Fuel Cell
AU - Bielefeld, Nikolaj Maack
AU - Sørensen, Rasmus Dockweiler
AU - Jørgensen, Mikkel
AU - Kure, Kristoffer Søndergaard
AU - Berning, Torsten
PY - 2024/9/10
Y1 - 2024/9/10
N2 - A one-dimensional computational model has been developed that can be used to identify operating conditions for the cathode side of a proton exchange membrane fuel cell such that both the inlet and outlet relative humidity is equal to 100%. By balancing the calculated pressure drop along the cathode side flow channel with the change in molar composition, inlet conditions for the cathode side can be identified with the goal of avoiding channel flooding. The channel length, height, width and the land-to-channel width ratio are input parameters for the model so that it might be used to dimension the cathode flow field. The model can be used to calculate the limiting current density, and we are presenting unprecedented high values as a result of the high pressure drop along the flow channels. Such high current densities can ultimately result in a fuel cell power density beyond the typical value of 1.0–2.0 W/cm2 for automotive fuel cells.
AB - A one-dimensional computational model has been developed that can be used to identify operating conditions for the cathode side of a proton exchange membrane fuel cell such that both the inlet and outlet relative humidity is equal to 100%. By balancing the calculated pressure drop along the cathode side flow channel with the change in molar composition, inlet conditions for the cathode side can be identified with the goal of avoiding channel flooding. The channel length, height, width and the land-to-channel width ratio are input parameters for the model so that it might be used to dimension the cathode flow field. The model can be used to calculate the limiting current density, and we are presenting unprecedented high values as a result of the high pressure drop along the flow channels. Such high current densities can ultimately result in a fuel cell power density beyond the typical value of 1.0–2.0 W/cm2 for automotive fuel cells.
KW - flow field design
KW - high current density
KW - operating conditions
KW - porous metal plates
KW - pressure drop
KW - proton exchange membrane fuel cell (PEMFC)
UR - http://www.scopus.com/inward/record.url?scp=85205082140&partnerID=8YFLogxK
U2 - 10.3390/hydrogen5030033
DO - 10.3390/hydrogen5030033
M3 - Journal article
SN - 2673-4141
VL - 5
SP - 624
EP - 643
JO - Hydrogen
JF - Hydrogen
IS - 3
ER -
