The effect of considering friction losses in steam nozzle for the same pressure ratio leads to________?
Correct answer: B. decrease in exit velocity from the nozzle
- A. increase in exit velocity from the nozzle
- B. decrease in exit velocity from the nozzle
- C. no change in exit velocity from the nozzle
- D. increase or decrease depending upon the exit quality of steam
Explanation
Friction dissipates part of the available enthalpy drop inside the nozzle, leaving less energy for conversion into kinetic energy. Consequently, the actual exit velocity is lower than the frictionless value.
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