mm by 1 mm by Im Anode Cathode PEM membrane

Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter38: Installation
Section: Chapter Questions
Problem 7RQ: Most duct insulation is made of_________.
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Question

A fuel cell  consists of air (or oxygen) and hydrogen
micro ducts, separated by a membrane that promotes proton
exchange for an electric current, as in Fig. . Suppose
that the airside, at 20°C and approximately 1 atm, has
five 1 mm by 1 mm ducts, each 1 m long. The total flow rate is 1.5 E-4 kg/s. (a) Determine if the flow is laminar or
turbulent. (b) Estimate the pressure drop. (Problem courtesy
of Dr. Pezhman Shirvanian.)

mm by 1 mm by Im
Anode
Cathode
PEM membrane
Transcribed Image Text:mm by 1 mm by Im Anode Cathode PEM membrane
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