Question
In: Mechanical Engineering
A steam power plant operates on a regenerative Rankine cycle. Steam enters the turbine at 6...
A steam power plant operates on a regenerative Rankine cycle. Steam enters the turbine at 6 MPa at 700 ºC and the condenser at 10 kPa. Turbine has isentropic efficiency of 85% and pumps have isentropic efficiency of 90%. Steam is extracted from the turbine at 0.6 MPa to heat the feedwater in an open feedwater heater. Water leaves the open feedwater heater as saturated liquid.
a) Draw the system with labels and show the ideal and the non-ideal cycle on a T-s diagram with complete labels. )
b) Determine the fraction of steam extracted for regeneration.
) c) Calculate the heat duty for boiler and condenser. If the net power output of the power cycle is 200 MW, determine the flow rate of the steam through the boiler. )
d) Determine the thermal efficiency of the cycle.
e) How regenerative Rankine cycle can improve the efficiency of a power cycle?)
f) Explain the differences between Carnot Cycle and Rankine cycle. Why Rankine Cycle is more practical than Carnot Cycle?
Solutions
samet mamat answered 8 months agoRelated Solutions
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Consider a steam power plant operating on the simple ideal Rankine cycle. Steam enters the turbine...
Consider a steam power plant operating on the simple ideal
Rankine cycle. Steam enters the turbine at 15 MPa and 600°C. The
steam condenses in the condenser at 10 kPa. Use the EES software to
study the effects of the following cases on the cycle performance
and to sketch the T-s diagram for each case:
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turbine isentropic efficiency. Take the isentropic efficiency of
the turbine in the range 70% to...
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