| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2019: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2017: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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| Outline of Final Research Achievements |
The objectives of this study are to elucidate the mechanism of multiscale water transport and freezing in PEFCs and to present cell structures and control methods for improving the cold startup ability. The cold start experiments simulating actual stack environment with a single cell, visualization of ice distribution in the cell using a cryo-SEM, and analysis of liquid water in complex porous structure using the lattice Boltzmann simulation and the scale model experiment were conducted. The results showed the effects of multiscale water transport and freezing phenomena on the cold start characteristics and new findings for the improving methods such as wettability control.
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