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In a steam power plant operating on a ideal Rankine cycle, superheated steam enters the turbine at 3 MPa and 350oC. The condenser pressure is 75kPa. The thermal efficiency of the cycle is .......Given data: For saturated liquid at p=75 kPa, hf=384.39 kJ/kg, vf=0.001037m3/kg,sf=1.213kJ/kgKAt 75kPa,hfg=2278..6kJ/kg,sfg=6.2434 kJKAt p=3Mpa and T=350oC (superheated steam), h=3115.3kJ/kg,s=6.7428/,kJ/kgK 26.01

Answer» In a steam power plant operating on a ideal Rankine cycle, superheated steam enters the turbine at 3 MPa and 350oC. The condenser pressure is 75kPa. The thermal efficiency of the cycle is .......

Given data: For saturated liquid at p=75 kPa,

hf=384.39 kJ/kg, vf=0.001037m3/kg,

sf=1.213kJ/kgK

At 75kPa,hfg=2278..6kJ/kg,

sfg=6.2434 kJK

At p=3Mpa and T=350oC (superheated steam),

h=3115.3kJ/kg,s=6.7428/,kJ/kgK


  1. 26.01


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