An ideal steam cogeneration plant generates power and 8600 kW of process heat. S

Question

An ideal steam cogeneration plant generates power and 8600 kW of process heat. Steam enters the turbine from the boiler at 8 MPa and 520 C. One-fourth of the steam is extracted from the turbine at 700 kPa for process heating. The remiander of the steam continues to expand and exhausts to the condenser at 10 kPa. The steam extracted for the process heater is condensed in the heater and mixed with the feedwater at 700 kPa. The mixture is then pumped to the boiler pressure of 8 MPa. Refer to the following table:

Determine the following:

I) the mass flow rate (kg/s) of steam supplied by the boiler

II) the net power (kW) produced by the plant

III) the effectiveness (utilization) factor

Explanation / Answer

please provide the values of entropy in table ,

or give the condition of steam at exit of turbine ,

otherwise not possible to calculate . please rate the response

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