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The net power of a steam power plant operating according to the simple ideal Rankine cycle...

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Mechanical Engineering

The net power of a steam power plant operating according to thesimple ideal Rankine cycle is 30.5 MW. Water vapor enters theturbine at 7 MPa pressure and 500 ° C, expands to 10 kPa condenserpressure in the turbine. The steam is condensed in the condenser bycooling it with water from a lake. The flow rate of the lake wateris 1950 kg / h. Get the pump and turbine adiabatic efficiency of87%. Show the cycle in the T-s diagram.

Cwater=4.18 kJ/kg°C

a) Calculate the thermal efficiency of the cycle,

b) Flow rate of the steam circulating in the cycle,

c) Calculate the temperature rise of the coolant.

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