Refer to the schematic below. The boiler is supplied water at
200˚C at a rate of 650,000 kg per hour at 8MPa and heats it to
550˚C. The saturated feedwater entering the low-pressure pump is at
7.5KPa. The closed feed water heater operates at 1800KPa and while
open feed water heater uses extracted steam at 275KPa. A steam trap
delivers saturated water from the closed feed water heater to the
open feed water heater. Saturated liquid leaves the open heater at
275KPa. The temperature of the cooling water increases from 15˚C to
27˚C with negligible pressure drop as it passes through the
condenser.
Determine:
a. Draw the T-S diagram using the same numbering as the schematic
below
b. The net power developed in KW
c. The thermal efficiency of the cycle
d. The mass flow rate of cooling water in kg/s
Homework Answers
The mass flow rate of cooling water is 5336.324 kg/sec
Add Answer to:
Refer to the schematic below. The boiler is supplied water at 200˚C at a rate of...
Refer to the schematic below. The boiler is supplied water at 200˚C at a rate of...
Refer to the schematic below. The boiler is supplied water at
200˚C at a rate of 650,000 kg per hour at 8MPa and heats it to
550˚C. The saturated feedwater entering the low-pressure pump is at
7.5KPa. The closed feed water heater operates at 1800KPa and while
open feed water heater uses extracted steam at 275KPa. A steam trap
delivers saturated water from the closed feed water heater to the
open feed water heater. Saturated liquid leaves the open heater...
Problem 3 Refer to the schematic below. The boiler is supplied water at 200'C at a...
Problem 3 Refer to the schematic below. The boiler is supplied water at 200'C at a rate of 650,000 kg per hour at 8MPa and heats it to 550 C. The saturated feedwater entering the low-pressure pump is at 7.5KPa. The closed feed water heater operates at 1800KPa and while open feed water heater uses extracted steam at 275KPa. A steam trap delivers saturated water from the closed feed water heater to the open feed water heater. Saturated liquid leaves...
Problem 3 Refer to the schematic below. The boiler is supplied water at 200'C at a...
Problem 3 Refer to the schematic below. The boiler is supplied water at 200'C at a rate of 650,000 kg per hour at 8MPa and heats it to 550 C. The saturated feedwater entering the low-pressure pump is at 7.5KPa. The closed feed water heater operates at 1800KPa and while open feed water heater uses extracted steam at 275KPa. A steam trap delivers saturated water from the closed feed water heater to the open feed water heater. Saturated liquid leaves...
P8-29 A closed feedwater heater is used in a Rankine cycle Steam leaves the boiler at...
P8-29 A closed feedwater heater is used in a Rankine cycle Steam leaves the boiler at 20 MPa, 600°C. Between the high and low-pressure turbines, steam at 1 MPa is extracted and delivered to the closed feedwater heater. Feedwater exits the feedwater heater at 20 MPa and the saturation temperature of the 1-MPa steam; saturated liquid condensate is fed through a steam trap back to the condenser. Steam from the second- stage turbine enters the condenser at 10 kPa, and...
1. A thermoelectric steam generation plant operates on a Rankine cycle with reheating and two boiler...
1. A thermoelectric steam generation plant operates on a Rankine cycle with reheating and two boiler feed water heaters, one open and one closed. Steam enters the high pressure turbine at P8 and 500 ° C and the low pressure turbine at P10 and 500 ° C. The condenser pressure is 40 kPa. Steam is drawn from the turbine at a pressure P11 for the closed feed water heater and at a pressure P12 for the open feed water heater....
Water is the working fluid in an ideal regenerative Rankine cycle with one open feed water heater, Figure 2. Upstream of the high pressure turbine superheated vapour with a mass flow rate of 90 kg/s...
Water is the working fluid in an ideal regenerative Rankine cycle with one open feed water heater, Figure 2. Upstream of the high pressure turbine superheated vapour with a mass flow rate of 90 kg/s entres the first-stage turbine at a pressure of 14 MPa Each turbine stage has an isentropic efficiency of 90%. The temperature of the inlet vapour is 520°C. The steam expands through the first-stage turbine to a pressure of 0.9MPa where some of the steam is...
SP-25 Consider a regenerative steam power plant with one open feedwater heater and one closed fee...
SP-25 Consider a regenerative steam power plant with one open feedwater heater and one closed feedwater heater. Superheated steam enters the turbine with a mass flow rate of 120 kg/s at 16 MPa and 560°C (State 1). Some fraction of the steam is extracted at 40 bar (State 2) and is supplied to the closed feedwater heater. The remaining steam expands to a pressure of 3 bar (State 3), another fraction is extracted at this pressure, and is supplied to...
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h Boiler 80,000 kW High-pressure turbine Low-pressure turbine...
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h Boiler 80,000 kW High-pressure turbine Low-pressure turbine Generator Condenser 5 kPa 0.9 MPa 28.000 kg/h 2.3 MPa 28.000 kg/h 227,000 kg/h Condensate pump High pressure heater Intermediate- Deaerating open feed water heater Boiler feed Low pressure heater pump pressure heater Trap Arrangement of heaters in an Trap Booster Trap pump actual power plant utilizing regenerative FWHs 210°C 330 kPa 12.000 kg/h 75КРа
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h...
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h Boiler 80,000 kW High-pressure turbine Low-pressure turbine...
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h Boiler 80,000 kW High-pressure turbine Low-pressure turbine Generator Condenser 5 kPa 0.9 MPa 28.000 kg/h 2.3 MPa 28.000 kg/h 227,000 kg/h Condensate pump High pressure heater Intermediate- Deaerating open feed water heater Boiler feed Low pressure heater pump pressure heater Trap Arrangement of heaters in an Trap Booster Trap pump actual power plant utilizing regenerative FWHs 210°C 330 kPa 12.000 kg/h 75КРа
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h...
A steam power plant operates on an ideal Rankine cycle with two of its feedwater heater...
A steam power plant operates on an ideal Rankine cycle with two
of its feedwater heater closed as shown in the figure below and
with a net power output of 105MW. The mass flow rate of the steam
is 70kg/s and enters the high-pressure turbine at 6MPa and
and leaves at 1.5 Mpa. a fraction of x of steam is extracted at
this pressure to the closed feedwater. a fraction of y of steam is
extracted from the second stage...
Refer to the schematic below. The boiler is supplied water at
200˚C at a rate of 650,000 kg per hour at 8MPa and heats it to
550˚C. The saturated feedwater entering the low-pressure pump is at
7.5KPa. The closed feed water heater operates at 1800KPa and while
open feed water heater uses extracted steam at 275KPa. A steam trap
delivers saturated water from the closed feed water heater to the
open feed water heater. Saturated liquid leaves the open heater...
Problem 3 Refer to the schematic below. The boiler is supplied water at 200'C at a rate of 650,000 kg per hour at 8MPa and heats it to 550 C. The saturated feedwater entering the low-pressure pump is at 7.5KPa. The closed feed water heater operates at 1800KPa and while open feed water heater uses extracted steam at 275KPa. A steam trap delivers saturated water from the closed feed water heater to the open feed water heater. Saturated liquid leaves...
Problem 3 Refer to the schematic below. The boiler is supplied water at 200'C at a rate of 650,000 kg per hour at 8MPa and heats it to 550 C. The saturated feedwater entering the low-pressure pump is at 7.5KPa. The closed feed water heater operates at 1800KPa and while open feed water heater uses extracted steam at 275KPa. A steam trap delivers saturated water from the closed feed water heater to the open feed water heater. Saturated liquid leaves...
P8-29 A closed feedwater heater is used in a Rankine cycle Steam leaves the boiler at 20 MPa, 600°C. Between the high and low-pressure turbines, steam at 1 MPa is extracted and delivered to the closed feedwater heater. Feedwater exits the feedwater heater at 20 MPa and the saturation temperature of the 1-MPa steam; saturated liquid condensate is fed through a steam trap back to the condenser. Steam from the second- stage turbine enters the condenser at 10 kPa, and...
Water is the working fluid in an ideal regenerative Rankine cycle with one open feed water heater, Figure 2. Upstream of the high pressure turbine superheated vapour with a mass flow rate of 90 kg/s entres the first-stage turbine at a pressure of 14 MPa Each turbine stage has an isentropic efficiency of 90%. The temperature of the inlet vapour is 520°C. The steam expands through the first-stage turbine to a pressure of 0.9MPa where some of the steam is...
SP-25 Consider a regenerative steam power plant with one open feedwater heater and one closed feedwater heater. Superheated steam enters the turbine with a mass flow rate of 120 kg/s at 16 MPa and 560°C (State 1). Some fraction of the steam is extracted at 40 bar (State 2) and is supplied to the closed feedwater heater. The remaining steam expands to a pressure of 3 bar (State 3), another fraction is extracted at this pressure, and is supplied to...
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h Boiler 80,000 kW High-pressure turbine Low-pressure turbine Generator Condenser 5 kPa 0.9 MPa 28.000 kg/h 2.3 MPa 28.000 kg/h 227,000 kg/h Condensate pump High pressure heater Intermediate- Deaerating open feed water heater Boiler feed Low pressure heater pump pressure heater Trap Arrangement of heaters in an Trap Booster Trap pump actual power plant utilizing regenerative FWHs 210°C 330 kPa 12.000 kg/h 75КРа
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h...
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h Boiler 80,000 kW High-pressure turbine Low-pressure turbine Generator Condenser 5 kPa 0.9 MPa 28.000 kg/h 2.3 MPa 28.000 kg/h 227,000 kg/h Condensate pump High pressure heater Intermediate- Deaerating open feed water heater Boiler feed Low pressure heater pump pressure heater Trap Arrangement of heaters in an Trap Booster Trap pump actual power plant utilizing regenerative FWHs 210°C 330 kPa 12.000 kg/h 75КРа
Determine the cycle Efficiency: 8.7 MPa 500°C 320,000 kg/h...
A steam power plant operates on an ideal Rankine cycle with two
of its feedwater heater closed as shown in the figure below and
with a net power output of 105MW. The mass flow rate of the steam
is 70kg/s and enters the high-pressure turbine at 6MPa and
and leaves at 1.5 Mpa. a fraction of x of steam is extracted at
this pressure to the closed feedwater. a fraction of y of steam is
extracted from the second stage...
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