Example 9-2 Required Fuel Flow Rate for 1 MW Fuel Cell A $1.0 MW_{DC}$ fuel cell stack is operated with a cell voltage of $700 mV$ on pure hydrogen with a fuel utilization, $U_{f}$ of 80 percent. (a) How much hydrogen will be consumed in $lb / hr$ ? (b) What is the required fuel flow rate? (c) What is the required air flow rate for a 25 percent oxidant utilization, $U_{ox}$ ?

Question

Example 9-2 Required Fuel Flow Rate for 1 MW Fuel Cell A

1.0 MW_{DC}

fuel cell stack is operated with a cell voltage of

700 mV

on pure hydrogen with a fuel utilization,

U_{f}

of 80 percent. (a) How much hydrogen will be consumed in

lb / hr

? (b) What is the required fuel flow rate? (c) What is the required air flow rate for a 25 percent oxidant utilization,

U_{ox}

?

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