The role of potential-dependent electrolyte resistance in the performance, steady-state multiplicities and oscillations of PEM fuel cells: Experimental investigation and macroscopic modelling

2005 ◽  
Vol 50 (25-26) ◽  
pp. 5132-5143 ◽  
Author(s):  
A. Katsaounis ◽  
S.P. Balomenou ◽  
D. Tsiplakides ◽  
M. Tsampas ◽  
C.G. Vayenas
Keyword(s):  
Experimental Investigation ◽  
Fuel Cells ◽  
Steady State ◽  
Pem Fuel Cells ◽  
Electrolyte Resistance

Potential-dependent electrolyte resistance and steady-state multiplicities of PEM fuel cells

2006 ◽  
Vol 177 (26-32) ◽  
pp. 2397-2401 ◽  
Author(s):  
A KATSAOUNIS ◽  
M TSAMPAS ◽  
S BALOMENOU ◽  
D TSIPLAKIDES ◽  
C VAYENAS
Keyword(s):  
Fuel Cells ◽  
Steady State ◽  
Pem Fuel Cells ◽  
Electrolyte Resistance

Experimental investigation and mathematical modeling of triode PEM fuel cells

2017 ◽  
Vol 248 ◽  
pp. 518-533 ◽  
Author(s):  
E. Martino ◽  
G. Koilias ◽  
M. Athanasiou ◽  
A. Katsaounis ◽  
Y. Dimakopoulos ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Experimental Investigation ◽  
Fuel Cells ◽  
Pem Fuel Cells

scholarly journals STEADY-STATE MODELLING OF PEM FUEL CELLS USING GRADIENT-BASED OPTIMIZER

10.6036/10099 ◽  
2021 ◽  
Vol DYNA-ACELERADO (0) ◽  
pp. [ 8 pp.]-[ 8 pp.]
Author(s):  
SALAH KAMAL ◽  
ATTIA EL-FERGANY ◽  
EHAB EHAB ELSAYED ELATTAR ◽  
AHMED AGWA
Keyword(s):  
Fuel Cells ◽  
Steady State ◽  
Fuel Cell ◽  
Optimization Problem ◽  
Pem Fuel Cells ◽  
Test Cases ◽  
Uncertain Parameters ◽  
Gradient Based ◽  
High Degree ◽  
Exchange Membrane

The accuracy of fuel cell (FC) models is important for the further numerical simulations and analysis at several conditions. The electrical (I-V) characteristic of the polymer exchange membrane fuel cells (PEMFCs) has high degree of nonlinearity comprising uncertain seven parameters as they aren’t given in fabricator's datasheets. These seven parameters need to be obtained to have the PEMFC model in order. This research addresses an up-to-date application of the gradient-based optimizer (GBO) to generate the best estimated values of such uncertain parameters. The estimation of these uncertain parameters is adapted as optimization problem having a cost function (CF) subjects to set of self-constrained limits. Three test cases of widely used PEMFCs units; namely, SR-12, 250-W module and NedStack PS6 to appraise the performance of the GBO are demonstrated and analyzed. The best values of the CF are 0.000142, 0.33598, and 2.10025 V2 for SR-12, 250-W module and NedStack PS6; respectively. Furthermore, the assessment of the GBO-based model is made by comparing its obtained results with the experiential results of these typical PEMFCs plus comparisons to other methods. At a due stage, many scenarios as a result of operating variations in regard to inlet regulation pressures and unit temperatures are performed. The copped reported results of the studied scenarios indicate the effectiveness of the GBO in establishing an accurate PEMFC model.

Steady State Multiplicities in Low Temperature PEM Fuel Cells

2018 ◽  
Vol 5 (14) ◽  
pp. 27397-27405
Author(s):  
E. Martino ◽  
A. Gusev ◽  
A. Katsaounis ◽  
C.G. Vayenas
Keyword(s):  
Fuel Cells ◽  
Steady State ◽  
Low Temperature ◽  
Pem Fuel Cells
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