Question
In: Mechanical Engineering
An adiabatic steam turbine receives 50 kg/s of superheated steam at 5 MPa and 500oC. Steam...
An adiabatic steam turbine receives 50 kg/s of superheated steam at 5 MPa and 500oC. Steam exits the turbine with a pressure of 100 kPa. Determine the minimum exit quality and the maximum power output of the turbine in kW.
Solutions
samet mamat answered 2 years agoRelated Solutions
A steam turbine receives superheated steam at 18.0 kg/s, 500.°C, and 3.00 MPa and exhausts it...
A steam turbine receives superheated steam at 18.0
kg/s, 500.°C, and 3.00 MPa and exhausts it to 10 kPa with a quality
of 96%. If the turbine is assumed to be internally reversible,
determine the rate of heat loss from the turbine surface if the
power output is 20.MW The surface temperature of the turbine is
uniform at 350.°C, and the local environment (ground state) is
taken to be saturated liquid water at T0 = 20.0°C. Neglect all flow
stream...
A steam turbine receives steam from two boilers. One flow is 5 kg/s at 3 MPa,...
A steam turbine receives steam from two boilers.
One flow is 5 kg/s at 3 MPa, 700°C and the other flow is 15 kg/s
at 800 kPa, 500°C.
The exit state is 10 kPa, with a quality of 96%.
Calculate the efficiency of the turbine and the total
power output.
A steam turbine receives steam from two boilers. One flow is 5 kg/s at 3 MPa,...
A steam turbine receives steam from two boilers. One flow is 5
kg/s at 3 MPa, 700°C and the other flow is 15 kg/s at 800 kPa,
500°C. The exit state is 10 kPa, with a quality of 96%. Find the
total power out of the adiabatic turbine. Calculate the efficiency
of the turbine
Superheated steam enters a turbine at 3 MPa, 550oC, and exits at 0.01 MPa. a) If...
Superheated steam enters a turbine at 3 MPa, 550oC, and exits at
0.01 MPa.
a) If the process is reversible adiabatic (isentropic), find the
final
temperature (T2s), the final enthalpy (h2s) of the steam, and the
turbine
work (Wt,s).
b) What is Sgen for the above process?
c) If the isentropic efficiency is 90%, find the actual final
temperature (T2a)
and calculate Sgen?
d) Plot process (a) and (c) on a Ts diagram.
Steam enters an adiabatic turbine steadily at 3 MPa and 400°C and leaves at 50 kPa....
Steam enters an adiabatic turbine steadily at 3 MPa and
400°C and leaves at 50 kPa. If the isentropic efficiency of the
turbine is 66.7%, determine the actual temperature of steam at
turbine exit. The mass flow rate of the steam flowing through the
turbine is 218 kg/min, determine the power output from the turbine.
Plot the T-s diagram.
Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4 MPa,...
Steam flows steadily through an adiabatic turbine. The inlet
conditions of the steam are 4
MPa, 500°C and 80 m/s, and the exit conditions are 30 kPa, 92%
quality and 50 m/s. The
mass flowrate of the steam is 12 kg/s. Investigate the effect of
the turbine exit pressure on
the power output of the turbine. Let the exit pressure vary from 10
to 200 kPa. Plot (1) T2
vs P2 and 2) Plot the power output (W_dot_T in MW)...
A mass flow rate of 2 kg/s of steam is expanded in an adiabatic turbine with...
A mass flow rate of 2 kg/s of steam is expanded in an adiabatic
turbine with an isentropic efficiency of 0.92. The steam enters at
3 MPa and 400 C and leaves at 30 kPa. Determine how much power the
turbine is producing. Express your result in kW.
(Sol: 1649 kW)
Steam enters an adiabatic turbine at 500C and 4.0MPa and 80m/s. The steam leaves the turbine...
Steam enters an adiabatic turbine at 500C and 4.0MPa and 80m/s.
The steam leaves the turbine as saturated liquid-vapor mixture at
30kPa, quality of 92% and 50m/s. The mass flow rate of steam
through the turbine is 12kg/s.
(10 pts) Determine change in kinetic energy
(10 pts) Determine the rate of work (power) done by the steam in
the turbine, in kW (neglect potential energy change).
(10 pts) Determine the flow area at the entrance to the turbine,
in m2....
In an ideal Rankine cycle with reheat, superheated steam vapor enters the turbine at 10 MPa...
In an ideal Rankine cycle with reheat, superheated steam vapor
enters the turbine at 10 MPa and
480 °C, while the condenser pressure is 6 kPa. Steam expands
through the first-stage turbine to
0.7 MPa and then is reheated to 480 °C
a) Calculate the total heat addition, net work of the cycle, heat
extraction through condenser,
and thermal efficiency of this ideal Rankine cycle with reheat.
[25]
b) Calculate the same quantities assuming that the pump and each
turbine...
In an ideal Rankine cycle with reheat, superheated steam vapor enters the turbine at 10 MPa...
In an ideal Rankine cycle with reheat, superheated steam vapor
enters the turbine at 10 MPa and
480 °C, while the condenser pressure is 6 kPa. Steam expands
through the first-stage turbine to
0.7 MPa and then is reheated to 480 °C
a) For a pressure of 7 bar right after the first stage turbine in
the ideal Rankine cycle, create
two plots: thermal efficiency as a function of the reheat
temperature from 200 °C to
500 °C; and the...
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