A steam turbine receives steam from a boiler at 8 MPa and 480°C. After some time, a third of the steam is used for process heating at 6.5 Mpa and the remaining steam is then reheated at 5 MPa and 460°C. A third of the steam is again extracted for process heating at 4 Mpa and the remaining steam is again reheated at 2 MPa and 450°C. The remaining steam continues to expand in the turbine and is then cooled in the condenser at 0.1 Mpa. If the total mass circulated in the system is 2000 kg/s and the thermal plant behaves as an ideal vapor cycle,

Elements Of Electromagnetics
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note: all feed water heater used in the cycle is open

A steam turbine receives steam from a boiler at 8 MPa and 480°C. After some time, a third of the
steam is used for process heating at 6.5 Mpa and the remaining steam is then reheated at 5 MPa and
460°C. A third of the steam is again extracted for process heating at 4 Mpa and the remaining steam is
again reheated at 2 MPa and 450°C. The remaining steam continues to expand in the turbine and is then
cooled in the condenser at 0.1 Mpa. If the total mass circulated in the system is 2000 kg/s and the thermal
plant behaves as an ideal vapor cycle,
Transcribed Image Text:A steam turbine receives steam from a boiler at 8 MPa and 480°C. After some time, a third of the steam is used for process heating at 6.5 Mpa and the remaining steam is then reheated at 5 MPa and 460°C. A third of the steam is again extracted for process heating at 4 Mpa and the remaining steam is again reheated at 2 MPa and 450°C. The remaining steam continues to expand in the turbine and is then cooled in the condenser at 0.1 Mpa. If the total mass circulated in the system is 2000 kg/s and the thermal plant behaves as an ideal vapor cycle,
Determine:
a. The schematic diagram of the thermal plant
b. The T-S diagram of the thermal plant
C. The enthalpies on each state
d.
The total heat added
e.
The total heat rejected
The amount of cooling water needed in the condenser if the cooling
water's temperature difference is 15 K.
g. The total power generated by the turbine
h.
i.
The total pump work in the cycle
The Thermal Efficiency of the cycle
The Carnot Cycle Efficiency of the thermal plant
Transcribed Image Text:Determine: a. The schematic diagram of the thermal plant b. The T-S diagram of the thermal plant C. The enthalpies on each state d. The total heat added e. The total heat rejected The amount of cooling water needed in the condenser if the cooling water's temperature difference is 15 K. g. The total power generated by the turbine h. i. The total pump work in the cycle The Thermal Efficiency of the cycle The Carnot Cycle Efficiency of the thermal plant
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