The expansion in a turbine is adiabatic and irreversibility. The entropy of the steam at inlet is 6.939 kJ/ kg. k and the turbine exhaust at a pressure of 7 kN/m2 . if the dryness fraction of the steam at exhaust is 0.91, calculate the lost work done due to irreversibility per kg of steam flowing through the turbine. If the inlet pressure 4Mpa, what is the isentropic efficiency of the turbine.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The expansion in a turbine is adiabatic and irreversibility. The entropy of the steam at inlet is 6.939 kJ/ kg. k and the turbine exhaust at a pressure of 7 kN/m2 . if the dryness fraction of the steam at exhaust is 0.91, calculate the lost work done due to irreversibility per kg of steam flowing through the turbine. If the inlet pressure 4Mpa, what is the isentropic efficiency of the turbine. Ans [200kJ/kg, 82.3%]
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