Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 122-128 |
| Journal | Journal of Power Sources |
| Volume | 258 |
| DOIs | |
| Publication status | Published - 2014 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- Carbon monoxide
- fuel utilization
- gas chromatography
- hydrogen fuel specification
- impurity enrichment
- PEMFC
Cite this
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Effect of fuel utilization on the carbon monoxide poisoning dynamics of Polymer Electrolyte Membrane Fuel Cells. / Perez, Luis; Koski, Pauli; Ihonen, Jari; Sousa, J M; Mendes, A (Corresponding Author).
In: Journal of Power Sources, Vol. 258, 2014, p. 122-128.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Effect of fuel utilization on the carbon monoxide poisoning dynamics of Polymer Electrolyte Membrane Fuel Cells
AU - Perez, Luis
AU - Koski, Pauli
AU - Ihonen, Jari
AU - Sousa, J M
AU - Mendes, A
PY - 2014
Y1 - 2014
N2 - The effect of fuel utilization on the poisoning dynamics by carbon monoxide (CO) is studied for future automotive conditions of Polymer Electrolyte Membrane Fuel Cells (PEMFC). Three fuel utilizations are used, 70%, 40% and 25%. CO is fed in a constant concentration mode of 1 ppm and in a constant molar flow rate mode (CO concentrations between 0.18 and 0.57 ppm). The concentrations are estimated on a dry gas basis. The CO concentration of the anode exhaust gas is analyzed using gas chromatography. CO is detected in the anode exhaust gas almost immediately after it is added to the inlet gas. Moreover, the CO concentration of the anode exhaust gas increases with the fuel utilization for both CO feed modes. It is demonstrated that the lower the fuel utilization, the higher the molar flow rate of CO at the anode outlet at early stages of the CO poisoning. These results suggest that the effect of CO in PEMFC systems with anode gas recirculation is determined by the dynamics of its accumulation in the recirculation loop. Consequently, accurate quantification of impurities limits in current fuel specification (ISO 14687-2:2012) should be determined using anode gas recirculation
AB - The effect of fuel utilization on the poisoning dynamics by carbon monoxide (CO) is studied for future automotive conditions of Polymer Electrolyte Membrane Fuel Cells (PEMFC). Three fuel utilizations are used, 70%, 40% and 25%. CO is fed in a constant concentration mode of 1 ppm and in a constant molar flow rate mode (CO concentrations between 0.18 and 0.57 ppm). The concentrations are estimated on a dry gas basis. The CO concentration of the anode exhaust gas is analyzed using gas chromatography. CO is detected in the anode exhaust gas almost immediately after it is added to the inlet gas. Moreover, the CO concentration of the anode exhaust gas increases with the fuel utilization for both CO feed modes. It is demonstrated that the lower the fuel utilization, the higher the molar flow rate of CO at the anode outlet at early stages of the CO poisoning. These results suggest that the effect of CO in PEMFC systems with anode gas recirculation is determined by the dynamics of its accumulation in the recirculation loop. Consequently, accurate quantification of impurities limits in current fuel specification (ISO 14687-2:2012) should be determined using anode gas recirculation
KW - Carbon monoxide
KW - fuel utilization
KW - gas chromatography
KW - hydrogen fuel specification
KW - impurity enrichment
KW - PEMFC
U2 - 10.1016/j.jpowsour.2014.02.016
DO - 10.1016/j.jpowsour.2014.02.016
M3 - Article
VL - 258
SP - 122
EP - 128
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
ER -