A fuel cell [59] consists of air (or oxygen) and hydrogen micro ducts, separated by a
Chapter 6, Problem p6.96(choose chapter or problem)
A fuel cell [59] consists of air (or oxygen) and hydrogen micro ducts, separated by a membrane that promotes proton exchange for an electric current, as in Fig. P6.96. Suppose that the air side, at 208C and approximately 1 atm, has fi ve 1 mm by 1 mm ducts, each 1 m long. The total fl ow rate is 1.5 E-4 kg/s. (a) Determine if the fl ow is laminar or turbulent. (b) Estimate the pressure drop. ( of Dr. Pezhman Shirvanian.) P6.96 Anode Cathode 1 mm by 1 mm by 1m PEM membrane
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