Question

4-13. An inventor claims to have built a machine that operates as follows: 100 kg/min of steam at T = 400°C and P=5 bar enters the machine. 100 kg/min of

saturated liquid water at 40°Cleaves the machine. 50,000 kJ/min of shaft work is produced by the system. There is no heat exchange with surroundings. An undisclosed amount of nitrogen enters the process at 315 K and 1 bar, and the same amount of nitrogen leaves at 330 K and 1 bar. I Kinetic and potential energy of all entering and leaving streams is negligible. This is a steady-state process that can continue as described above indefinitely. Without knowing anything about how the machine works, what can you say about the feasibility of the inventor's claim?

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