It is proposed to design and develop a Rankine cycle Steam Power Plant in which steam at 80 bar and 500 oC is supplied to the turbine which exhausts at a pressure of 0.11 bar into a condenser. Condensate from the condenser is returned to Steam Generator (Boiler) by a Feedwater Pump. The processes in the turbine and pump can be assumed to be reversible adiabatic. In addition, pressure and temperature drops can be neglected throughout the cycle. Sketch the T-s diagram for this cycle and calculate the following performance parameters: i) Cycle Thermal Efficiency ii) Work Ratio iii) Specific Steam Consumption
It is proposed to design and develop a Rankine cycle Steam Power Plant in which steam at 80 bar
and 500 oC
is supplied to the turbine which exhausts at a pressure of 0.11 bar into a condenser.
Condensate from the condenser is returned to Steam Generator (Boiler) by a Feedwater Pump. The
processes in the turbine and pump can be assumed to be reversible adiabatic. In addition, pressure
and temperature drops can be neglected throughout the cycle. Sketch the T-s diagram for this cycle
and calculate the following performance parameters:
i) Cycle Thermal Efficiency
ii) Work Ratio
iii) Specific Steam Consumption
iv) Condenser Heat Load
v) Mass flow rate of steam to generate a net power output of 40 Megawatts (MW).
vi) Mass flow rate of cooling water required for the condenser if the cooling water inlet
temperature is 26 oC and its outlet temperature is limited to 40 oC. The specific heat capacity
of the cooling water is 4.18 kJ/kg K.
viii) The total amount of sensible heat in kW supplied to the feedwater/steam in the Steam
Generator.
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