2017
DOI: 10.1016/j.ijhydene.2017.10.031
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Simultaneous characterization of oxygen transport resistance and spatially resolved liquid water saturation at high-current density of polymer electrolyte membrane fuel cells with varied cathode relative humidity

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Cited by 40 publications
(31 citation statements)
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“…In situ observations of liquid water distribution in fuel cells operating at an intermediate temperature of 60°C have been presented in [7,8]. The current density was 1.5 AÁcm À2 in the experiments reported in [8] while the experiments in [7] were at the limiting current density, close to 2.5 AÁcm À2 . Another difference lies in the bipolar plate design.…”
Section: Intermediate Operating Temperatures ($60°c Rh Ch = 100%)mentioning
confidence: 90%
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“…In situ observations of liquid water distribution in fuel cells operating at an intermediate temperature of 60°C have been presented in [7,8]. The current density was 1.5 AÁcm À2 in the experiments reported in [8] while the experiments in [7] were at the limiting current density, close to 2.5 AÁcm À2 . Another difference lies in the bipolar plate design.…”
Section: Intermediate Operating Temperatures ($60°c Rh Ch = 100%)mentioning
confidence: 90%
“…T % 40°C, the liquid water distributions obtained by X-ray tomography also show that the liquid water can be present almost everywhere, both below the ribs and below the channels. In addition, the water distributions presented in [7] for the intermediate temperature of 60°C indicate a strong influence of the relative humidity in the feed channels with liquid water again almost everywhere in the GDL when the gas in the channels is fully humidified.…”
Section: Introductionmentioning
confidence: 92%
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“…This value is in the range of literature, i.e. Muirhead et al (10) reported mass transport resistance values around 2 s/cm for a fuel cell with SGL 25BC GDL compressed at 25%. Taking into account that our GDL is slightly thicker and more compressed (~40%), the measured are typically in the expected range of values.…”
Section: Mass Transport Resistance Measurementsmentioning
confidence: 50%
“…. [10] Equation (10) shows that the distribution / is a function of the Peclet number only. Thus current density distribution measurements can be used to identifiy the Peclet number and then the effective GDL diffusity.…”
Section: Current Density Distribution Modelmentioning
confidence: 99%