Consider a steam turbine power plant operating near critical pressure, as shown in Fig. below. As a first approximation, it may be assumed that the turbine and the pump processes are reversible and adiabatic. Turbine actual exit state is saturated vapor. Neglecting any changes in kinetic and potential energies, calculate 1. Isentropic Turbine efficiency? 2. The Pump work input and enthalpy at pump exit state? 3. The thermal efficiency of cycle? T1=700 C; P1=P4=15 MPa ; P2=P3=20 KPa;

Consider a steam turbine power plant operating near critical pressure, as shown in Fig. below. As a first approximation, it may be assumed that the turbine and the pump processes are reversible and adiabatic. Turbine actual exit state is saturated vapor. Neglecting any changes in kinetic and potential energies, calculate 1. Isentropic Turbine efficiency? 2. The Pump work input and enthalpy at pump exit state? 3. The thermal efficiency of cycle? T1=700 C; P1=P4=15 MPa ; P2=P3=20 KPa;

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Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

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Consider a steam turbine power plant operating near critical pressure, as shown in Fig. below. As a first approximation,
it may be assumed that the turbine and the pump processes are reversible and adiabatic. Turbine actual exit state is
saturated vapor. Neglecting any changes in kinetic and potential energies, calculate
1. Isentropic Turbine efficiency?
2. The Pump work input and enthalpy at pump exit state?
3. The thermal efficiency of cycle?
T1=700 C; P1=P4=15 MPa ; P2=P3=20 KPa;
in
3

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