In: Mechanical Engineering
consider a fuel cell operating at 800 degrees Celcius, and 1
atm. 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.
(Fuel Cell Fundamentals, O'Hayre - Chapter 5 Problem 5.6)