Question: 5 . 6 Consider a fuel cell operating at 8 0 0 C , 1 atm. In the cathode, humidified air is supplied with the

5.6 Consider a fuel cell operating at 800C,1atm. In the cathode, humidified air is supplied with the mole fraction of water vapor equal to 0.1. If the fuel cell employs circular flow channels with a diameter of 1 mm , find the maximum velocity of air that can be used while still maintaining laminar flow. Compare your result to Example 5.2.
5 . 6 Consider a fuel cell operating at 8 0 0 C ,

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