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EML4550HW7 - efficiencies for the cell operating in the...

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EML 4550/5451 Energy Conversion Systems for Sustainability Homework # 7 Due: Tuesday October 31, 2006 Topic: Fuel cell calculation Examine how the ideal efficiency of a simple hydrogen-oxygen fuel cell changes as its operating temperature is raised from 298K to 750K. Also calculate the actual and ideal
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Unformatted text preview: efficiencies for the cell operating in the standard conditions of 298K and 1 atm. The actual cell voltage is 0.75V while the cell delivers 1.5 amps. The hydrogen flow is 0.25 cm 3 /sec. Independent measurements reveal that 0.06 cm3/sec of hydrogen is escaping through electrolyte unreacted....
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