TY - JOUR
T1 - A theoretical study of inlet relative humidity control in PEM fuel cell
AU - Wong, K.H.
AU - Loo, K.H.
AU - Lai, Y.M.
AU - Tan, Siew-Chong
AU - Tse, Chi K.
PY - 2011/9
Y1 - 2011/9
N2 - In this paper, the individual roles of inlet anode and cathode humidification, and their influences on PEM fuel cell's electrical performance are discussed systematically by using a pseudo two-dimensional, two-phase PEM fuel cell model. It follows that the maximum power density point of a PEM fuel cell is strongly dependent on the combination of the inlet anode and cathode humidification conditions. Their influences, however, are predicted to be highly asymmetrical, with the anode and cathode humidification mainly affecting ohmic and concentration overpotential, respectively. The physical explanation to this asymmetry is given with the aid of a detailed set of simulation results. Finally, the developed understanding of their influences are employed to formulate two examples on the use of inlet relative humidity control as a simple and effective method for maximizing the volumetric power density and operating range of PEM fuel cell, respectively. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
AB - In this paper, the individual roles of inlet anode and cathode humidification, and their influences on PEM fuel cell's electrical performance are discussed systematically by using a pseudo two-dimensional, two-phase PEM fuel cell model. It follows that the maximum power density point of a PEM fuel cell is strongly dependent on the combination of the inlet anode and cathode humidification conditions. Their influences, however, are predicted to be highly asymmetrical, with the anode and cathode humidification mainly affecting ohmic and concentration overpotential, respectively. The physical explanation to this asymmetry is given with the aid of a detailed set of simulation results. Finally, the developed understanding of their influences are employed to formulate two examples on the use of inlet relative humidity control as a simple and effective method for maximizing the volumetric power density and operating range of PEM fuel cell, respectively. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
KW - Inlet relative humidity control
KW - Optimization
KW - Proton exchange membrane fuel cell
KW - Water management
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U2 - 10.1016/j.ijhydene.2011.06.017
DO - 10.1016/j.ijhydene.2011.06.017
M3 - RGC 21 - Publication in refereed journal
SN - 0360-3199
VL - 36
SP - 11871
EP - 11885
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 18
ER -
