Problem

Applying the Exergy Balance: Control Volumes at Steady StateAir at 200 lbf/in.2, 800°R, an...

Applying the Exergy Balance: Control Volumes at Steady State

Air at 200 lbf/in.2, 800°R, and a volumetric flow rate of 100 ft3/min enters a valve operating at steady state and undergoes a throttling process. Assuming ideal gas behavior

(a) determine the rate of exergy destruction, in Btu/min, for an exit pressure of 15 lbf/in.2


(b) plot the exergy destruction rate, in Btu/min, versus exit pressure ranging from 15 to 200 lbf/in.2

Let T0 = 530°R, p0 = 15 lbf/in.2

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