| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Proton Exchange Membrane Full Cell (PEMFC) is one of the most useful candidates of efficient and clean energy conversion devices. Understanding water transport inside PEMFC is very important to estimate and improve its cell performance, However, water transport is interacted with temperature, electrochemical reaction, phase change and heat and active material transport, and difficult to understand. In particular, the temperature gradient has the significant influence on water transport. Then, the two-dimensional unsteady model considering distributions of temperature, spices, reaction and phase change was developed to investigate how the temperature gradient effects on the water transport and the cell performance. The result indicated that the temperature gradient invoke heat pipe phenomena, and it could reduce flooding in the CL. Then, considering the temperature gradient and the other effect simultaneously is essential.
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