The steam supply to an engine comprises two streams which mix before entering the engine. One stream is supplied at the rate of 0.01 kg/s with the enthalpy of 2950 kJ/kg and a velocity of 20 m/s. The other stream is supplied at the rate of 0.1 kg/s with an enthalpy of 2665 kJ/ kg and a velocity of 120 m/s. At the exit from the engine, the fluid leaves as two streams, one of water at the rate of 0.001 kg/s with an enthalpy 421 kJ/kg and the other of steam. The fluid velocities at the exit are negligible. The engine develops a shaft power of 25 kW. The heat transfer is negligible. Estimate the enthalpy of second exit steam. (2489 kJ/kg)

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The steam supply to an engine comprises two streams which mix before entering the engine.
One stream is supplied at the rate of 0.01 kg/s with the enthalpy of 2950 kJ/kg and a velocity
of 20 m/s. The other stream is supplied at the rate of 0.1 kg/s with an enthalpy of 2665 kJ/
kg and a velocity of 120 m/s. At the exit from the engine, the fluid leaves as two streams,
one of water at the rate of 0.001 kg/s with an enthalpy 421 kJ/kg and the other of steam. The
fluid velocities at the exit are negligible. The engine develops a shaft power of 25 kW. The
heat transfer is negligible. Estimate the enthalpy of second exit steam.
(2489 kJ/kg)
Transcribed Image Text:The steam supply to an engine comprises two streams which mix before entering the engine. One stream is supplied at the rate of 0.01 kg/s with the enthalpy of 2950 kJ/kg and a velocity of 20 m/s. The other stream is supplied at the rate of 0.1 kg/s with an enthalpy of 2665 kJ/ kg and a velocity of 120 m/s. At the exit from the engine, the fluid leaves as two streams, one of water at the rate of 0.001 kg/s with an enthalpy 421 kJ/kg and the other of steam. The fluid velocities at the exit are negligible. The engine develops a shaft power of 25 kW. The heat transfer is negligible. Estimate the enthalpy of second exit steam. (2489 kJ/kg)
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