A5058137009- Fuel Cells and Related Materials
- Advanced Battery Technologies Research
- Hybrid Renewable Energy Systems
Kyushu University
2018-2019
The numerical analysis conducted in this study proposes a guideline to maximize the high-temperature effect, which is expected reduce electrolysis voltage of polymer electrolyte membrane water electrolyzer. High-temperature operation intuitively thought activation overvoltages. However, further consideration predicts that high temperature, especially temperature higher than saturated regulated pressure, decreases liquid saturation and causes shortage water, leading large increase This...
A mathematical model for high temperature operation of PEMWE was developed and the reliability confirmed by comparing measured electrolysis voltage with theoretical value based on model. The could trace measurement values. Especially, dependence had a good agreement between It also found that increase in gas saturation increasing reduces effective exchange current density weakens effect, which expects to reduce anode activation overvoltage under operation. Furthermore, it should be less than...