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A steam turbine receives steam steadily at 10 bar with a enthalpy of 3000 kJ/kg and discharges at 1 bar with an enthalpy of 2700 kJ/kg. The work output is 250 kJ/kg. The changes in kinetic and potential energies are negligible. The heat transfer from the turbine casing to the surroundings is equal to
[2000]
  • a)
    0 kJ
  • b)
    50 kJ
  • c)
    150 kJ
  • d)
    250 kJ
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A steam turbine receives steam steadily at 10 bar with a enthalpy of 3...

Δh = ΔQ - Δ W
∴ ΔQ = (- 300 + 250) kJ/kg = - 50 kJ/kg
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Most Upvoted Answer
A steam turbine receives steam steadily at 10 bar with a enthalpy of 3...

Δh = ΔQ - Δ W
∴ ΔQ = (- 300 + 250) kJ/kg = - 50 kJ/kg
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A steam turbine receives steam steadily at 10 bar with a enthalpy of 3000 kJ/kg and discharges at 1 bar with an enthalpy of 2700 kJ/kg. The work output is 250 kJ/kg. The changes in kinetic and potential energies are negligible. The heat transfer from the turbine casing to the surroundings is equal to[2000]a)0 kJb)50 kJc)150 kJd)250 kJCorrect answer is option 'B'. Can you explain this answer?
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