The net power of a steam power plant operating on the simple ideal Rankine cycle is 30.5 MW. Water vapor enters the turbine at a pressure of 7 MPa and a temperature of 500 °C, and expands to The flow rate of the lake water is 1950 kg/s. Take the adiabatic efficiency of the pump and turbine as 87%. Show the cycle in the T-s diagram. Csu=4.18k)/kg°C a) The thermal efficiency of the cycle, b) The flow rate of the steam circulating in the circuit, c)Calculate the temperature rise of the cooling water. condenser pressure of 10kPa in the turbine. The steam is cooled in the condenser and condensed with water supplied from a lake.

Elements Of Electromagnetics
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Thermodynamics

The net power of a steam power plant operating on the simple ideal Rankine cycle is 30.5 MW. Water vapor enters the turbine at a pressure of 7 MPa and a temperature of 500 °C,
and expands to a condenser pressure of 10kPa in the turbine. The steam is cooled in the condenser and condensed with water supplied from a lake.
The flow rate of the lake water is 1950 kg/s. Take the adiabatic efficiency of the pump and turbine as 87%. Show the cycle in the T-s diagram. Csu=4.18kJ/kg°C
a) The thermal efficiency of the cycle,
b) The flow rate of the steam circulating in the circuit,
c)Calculate the temperature rise of the cooling water.
Transcribed Image Text:The net power of a steam power plant operating on the simple ideal Rankine cycle is 30.5 MW. Water vapor enters the turbine at a pressure of 7 MPa and a temperature of 500 °C, and expands to a condenser pressure of 10kPa in the turbine. The steam is cooled in the condenser and condensed with water supplied from a lake. The flow rate of the lake water is 1950 kg/s. Take the adiabatic efficiency of the pump and turbine as 87%. Show the cycle in the T-s diagram. Csu=4.18kJ/kg°C a) The thermal efficiency of the cycle, b) The flow rate of the steam circulating in the circuit, c)Calculate the temperature rise of the cooling water.
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