A High Pressure Feed Water Heater in a power plant, has SA 213 TP 304 N...
A High Pressure Feed Water Heater in a power plant, has SA 213 TP 304 N (seamless tube), with ID : 19 mm; Thickness : 2,1 mm, and will operated by this data :
Extraction Steam Pressure : 2 Mpa
Extraction Steam Temperature : 400 deg C
Temperature Inlet feed water : 180 deg C
Temperature Outlet feed water : 208 deg C
Pressure feed water : 17 Mpa
Flow feed water : 1000 t/h
Temperature condensate water 200 deg C
Please determine overall heat transfer; allowable working
pressure and temperature of that material.
Thank you.
Homework Answers
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A High Pressure Feed Water Heater in a power plant, has SA 213
TP 304 N...
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...
In a regenerative ideal Rankine cycle, hot water steam enters the turbine at 10 MPa and...
In a regenerative ideal Rankine cycle, hot water steam enters the turbine at 10 MPa and 480°C. condenser inlet pressure is 10 kPa. Some steam is taken from the turbine at a pressure of 0.7 MPa, feeds a Closed Feed water heater and is sent to the condenser as a saturated liquid at a pressure of 0.7 MPa at the outlet. The other outlet (cold) is at a pressure of 10 MPa and a saturation temperature of 0.7 MPa. According...
In a steam power cycle shown in the figure, the pressure of the water vapor exiting...
In a steam power cycle shown in the figure, the
pressure of the water vapor exiting from the boiler with 1 kg mass
at 1 point is P1 = 4 MPa, while the temperature is T1 = 400 oC, the
pressures at the inlet and outlet of the mixing chamber (K.O.) are
P2 = P3 = P4 = 1 MPa. The temperature at the inlet of the low
pressure turbine (A.B.T.) is measured as T4 = 240 oC and the...
Question 4 A steam power plant equipped with an open feed water heater as well as...
Question 4 A steam power plant equipped with an open feed water heater as well as reheat arrangement, as shown in figure 1, supplies 50 kg/s of steam at 80 bar 470°C to the H.P. turbine. For feed heating, a part of steam is extracted at 7 bar and the remainder of the steam is reheated to 350°C in a reheater and then expanded in L.P. turbine down to 0.035 bar. The isentropic efficiency of both turbines is 0.85: A....
A steam power plant equipped with an open feed water heater as well as reheat arrangement,...
A steam power plant equipped with an open feed water heater as
well as reheat arrangement, as shown in figure 1, supplies 50 kg/s
of steam at 80 bar 470°C to the H.P. turbine. For feed heating, a
part of steam is extracted at 7 bar and the remainder of the steam
is reheated to 350°C in a reheater and then expanded in L.P.
turbine down to 0.035 bar. The isentropic efficiency of both
turbines is 0.85:
(a) Plot the...
A steam power plant equipped with an open feed water heater as well as reheat arrangement,...
A steam power plant equipped with an open feed water heater as well as reheat arrangement, as shown in figure 1, supplies 50 kg/s of steam at 80 bar 470°C to the H.P. turbine. For feed heating, a part of steam is extracted at 7 bar and the remainder of the steam is reheated to 350°C in a reheater and then expanded in L.P. turbine down to 0.035 bar. The isentropic efficiency of both turbines is 0.85: (a) Plot the...
A steam power plant equipped with an open feed water heater as well as reheat arrangement,...
A steam power plant equipped with an open feed water heater as well as reheat arrangement, as shown in figure 1, supplies 50 kg/s of steam at 80 bar 470°C to the H.P. turbine. For feed heating, a part of steam is extracted at 7 bar and the remainder of the steam is reheated to 350°C in a reheater and then expanded in L.P. turbine down to 0.035 bar. The isentropic efficiency of both turbines is 0.85: (a) Plot the...
Problem Statement: Design a tubular feed-water heater which need to heat the 1.5 kg/s of water...
Problem Statement:
Design a tubular feed-water heater which need to heat the 1.5 kg/s
of water from
20°C to 60°C.
Constraints:
a) Heating of water need to be done by saturated steam which is
condensing at
1 MPa & heat transfer coefficients (on steam side) is 6500
W/m2K
b) Max. Velocity of water 1.0 m/s
c) Three different copper tube inner diameters 2.0 cm, 2.5 cm and
3.0 cm.
d) Thickness of copper tubes 10% of the inner diameter
Deliverables:...
a) A steam power plant operates on an ideal reheat-regenerative Rankine cycle. Steam enters the high-pressure...
a) A steam power plant operates on an ideal reheat-regenerative Rankine cycle. Steam enters the high-pressure turbine (HPT) at a pressure of 10 MPa and temperature of 550°C. The steam expands through the HPT stage to a pressure of 0.6 MPa. Some of the steam at the end of the expansion process in HPT is extracted for a regeneration process in a closed-type feedwater heater. The steam leaves the heater as a saturated liquid and then is throttled to the...
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...
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...
In a regenerative ideal Rankine cycle, hot water steam enters the turbine at 10 MPa and 480°C. condenser inlet pressure is 10 kPa. Some steam is taken from the turbine at a pressure of 0.7 MPa, feeds a Closed Feed water heater and is sent to the condenser as a saturated liquid at a pressure of 0.7 MPa at the outlet. The other outlet (cold) is at a pressure of 10 MPa and a saturation temperature of 0.7 MPa. According...
In a steam power cycle shown in the figure, the
pressure of the water vapor exiting from the boiler with 1 kg mass
at 1 point is P1 = 4 MPa, while the temperature is T1 = 400 oC, the
pressures at the inlet and outlet of the mixing chamber (K.O.) are
P2 = P3 = P4 = 1 MPa. The temperature at the inlet of the low
pressure turbine (A.B.T.) is measured as T4 = 240 oC and the...
Question 4 A steam power plant equipped with an open feed water heater as well as reheat arrangement, as shown in figure 1, supplies 50 kg/s of steam at 80 bar 470°C to the H.P. turbine. For feed heating, a part of steam is extracted at 7 bar and the remainder of the steam is reheated to 350°C in a reheater and then expanded in L.P. turbine down to 0.035 bar. The isentropic efficiency of both turbines is 0.85: A....
A steam power plant equipped with an open feed water heater as
well as reheat arrangement, as shown in figure 1, supplies 50 kg/s
of steam at 80 bar 470°C to the H.P. turbine. For feed heating, a
part of steam is extracted at 7 bar and the remainder of the steam
is reheated to 350°C in a reheater and then expanded in L.P.
turbine down to 0.035 bar. The isentropic efficiency of both
turbines is 0.85:
(a) Plot the...
A steam power plant equipped with an open feed water heater as well as reheat arrangement, as shown in figure 1, supplies 50 kg/s of steam at 80 bar 470°C to the H.P. turbine. For feed heating, a part of steam is extracted at 7 bar and the remainder of the steam is reheated to 350°C in a reheater and then expanded in L.P. turbine down to 0.035 bar. The isentropic efficiency of both turbines is 0.85: (a) Plot the...
A steam power plant equipped with an open feed water heater as well as reheat arrangement, as shown in figure 1, supplies 50 kg/s of steam at 80 bar 470°C to the H.P. turbine. For feed heating, a part of steam is extracted at 7 bar and the remainder of the steam is reheated to 350°C in a reheater and then expanded in L.P. turbine down to 0.035 bar. The isentropic efficiency of both turbines is 0.85: (a) Plot the...
Problem Statement:
Design a tubular feed-water heater which need to heat the 1.5 kg/s
of water from
20°C to 60°C.
Constraints:
a) Heating of water need to be done by saturated steam which is
condensing at
1 MPa & heat transfer coefficients (on steam side) is 6500
W/m2K
b) Max. Velocity of water 1.0 m/s
c) Three different copper tube inner diameters 2.0 cm, 2.5 cm and
3.0 cm.
d) Thickness of copper tubes 10% of the inner diameter
Deliverables:...
a) A steam power plant operates on an ideal reheat-regenerative Rankine cycle. Steam enters the high-pressure turbine (HPT) at a pressure of 10 MPa and temperature of 550°C. The steam expands through the HPT stage to a pressure of 0.6 MPa. Some of the steam at the end of the expansion process in HPT is extracted for a regeneration process in a closed-type feedwater heater. The steam leaves the heater as a saturated liquid and then is throttled to the...
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...
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