A steam power plant operating on the simple ideal Rankine cycle. Its net power is 30.5 MW. The water vapor enters the turbine at 7 MPa pressure and 500 °C. temperature, then in the turbine expands to 10 kPa condenser pressure. With water supplied from a lake in the steam condenser is cooled and condensed. The flow rate of the lake water is 1950 kg/s. Pump and turbine adiabatic efficiencies are 87%. Draw T-s the diagram. Then calculate: a)The thermal efficiency of the cycle, b) The flow rate of the steam circulating in the cycle, c) The temperature rise of the cooling water. (Csu=4.18 kJ/kg°C )
A steam power plant operating on the simple ideal Rankine cycle. Its net power is 30.5 MW. The water vapor enters the turbine at 7 MPa pressure and 500 °C. temperature, then in the turbine expands to 10 kPa condenser pressure. With water supplied from a lake in the steam condenser is cooled and condensed. The flow rate of the lake water is 1950 kg/s. Pump and turbine adiabatic efficiencies are 87%. Draw T-s the diagram. Then calculate: a)The thermal efficiency of the cycle, b) The flow rate of the steam circulating in the cycle, c) The temperature rise of the cooling water. (Csu=4.18 kJ/kg°C )
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A steam power plant operating on the simple ideal Rankine cycle. Its net power is 30.5 MW. The water vapor enters the turbine at 7 MPa pressure and 500 °C. temperature, then in the turbine expands to 10 kPa condenser pressure. With water supplied from a lake in the steam condenser is cooled and condensed. The flow rate of the lake water is 1950 kg/s. Pump and turbine adiabatic efficiencies are 87%. Draw T-s the diagram. Then calculate:
a)The thermal efficiency of the cycle,
b) The flow rate of the steam circulating in the cycle,
c) The temperature rise of the cooling water.
(Csu=4.18 kJ/kg°C )
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