Consider a hydrogen fuel cell with 15 cm2 active area. During the operation, the activation and the polarization resistance is measured to be 0.03 V and 0.01 V, respectively. On the other hand, the cell ohmic resistance is known to be R=0.055 . If the theoretical potential is 1.23 V and the actual cell voltage is Vcell=1 V, what is the operating current density?
Consider a hydrogen fuel cell with 15 cm2 active area. During the operation, the activation and the polarization resistance is measured to be 0.03 V and 0.01 V, respectively. On the other hand, the cell ohmic resistance is known to be R=0.055 . If the theoretical potential is 1.23 V and the actual cell voltage is Vcell=1 V, what is the operating current density?
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Consider a hydrogen fuel cell with 15 cm2 active area. During the operation, the activation and the polarization resistance is measured to be 0.03 V and 0.01 V, respectively. On the other hand, the cell ohmic resistance is known to be R=0.055 . If the theoretical potential is 1.23 V and the actual cell voltage is Vcell=1 V, what is the operating current density?
b ) During a fuel cell operation fed by hydrogen, absolute enthalpy and entropy change was measured as -222370 kJ and -43.61 kJ/K, respectively. If the fuel cell was running at a constant operating temperature of 35°C, what is the electromotive force?
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