consider a steam power plant that operates

The thermal efficiency of the cycle is _ percent.Given data:For saturated liquid, at P = 75 kPa,hf = 384.39 kJ/kg, vf = 0.001037 m3/kg,sf = 1.213 kJ/kg-KAt 75 kPa, hfg = 2278.6 kJ/kg,sfg = 6.2434 kJ/kg-KAt P = 3 MPa and T = 350o C (Superheated steam), h = 3115.3 kJ/kg,s = 6.7428 kJ/kg-K(Important - Enter only the numerical value in the answer)Correct answer is '26'. Information about In a steam power plant operating on an ideal Rankine cycle, superheated steam enters the turbine at 3 MPa and 350oC. The Question and answers have been prepared Can you explain this answer? for GATE 2023 is part of GATE preparation. In a steam power plant operating on an ideal Rankine cycle, superheated steam enters the turbine at 3 MPa and 350oC. Rounding off the answer to the nearest integer, we get the thermal efficiency of the cycle to be 26%. The thermal efficiency of the cycle is then given by: q = h1 - h4, where h4 is the enthalpy of the saturated liquid at the condenser pressureģ. The specific heat added in the boiler can be calculated using the enthalpy difference between the inlet and outlet steam:

The turbine work output per unit mass is w = h1 - h2Ģ. h2 = hf + x * hfg, where x is the quality of the steam at the outlet The specific work output of the turbine can be calculated using the enthalpy difference between the inlet and outlet steam: The thermal efficiency of the Rankine cycle can be calculated as follows:ġ.

Consider a steam power plant that operates