Question
In: Mechanical Engineering
Steam at 5mpa and 300C enters a turbine in a steady flow manner, from the turbine...
Steam at 5mpa and 300C enters a turbine in a steady flow manner, from the turbine the steam expands to 200 kpa with a quality of 90%. FInd the ff:
a. The work done by the steam to the turbine in kj/kg
b. The amount of steam flow rate needed in kg/hr if the turbine produces 200kW of power
c. The efficiency of the expansion process
Solutions
samet mamat answered 1 year agoRelated Solutions
Steam at 5MPa and 300°C enters a turbine in a steady flow manner, from the turbine...
Steam at 5MPa and 300°C enters a turbine in a
steady flow manner, from the turbine the steam expands to
200kPa with a quality of 90%. Find the
following:
The work done by the steam to the turbine in
kj/kg
The amount of steam flow rate needed in kg/hr
if the turbine produces 200kW of power
The efficiency of the expansion process
Air enters a steady-flow turbine. The conditions of the air entering and leaving the turbine are...
Air enters a steady-flow turbine. The conditions of the air
entering and leaving the
turbine are as follows: inlet, 300 kPa and 52°C; exit, 100 kPa
and 12°C. The mass
flow rate is 10 kg/s. Heat transfer from the turbine to the
surroundings and the
kinetic and potential energy effects are negligible. Calculate
the power developed
by the turbine. Determine whether the process in the turbine is
reversible. If not,
determine the isentropic efficiency of the turbine.
2 kg/s of steam enters a turbine operating at steady state at 1 MPa, 200oC and...
2 kg/s of steam enters a turbine operating at steady state at 1
MPa, 200oC and exits at 40oC with a quality of 83%. Stray heat
transfer and kinetic and potential energy effects are negligible.
Determine (a) the power developed by the turbine, in kW, (b) the
change in specific entropy from inlet to exit, in kJ/kg·K.
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....
A steam turbine operates adiabatically at a power level of 3500 kW. Steam enters the turbine...
A steam turbine operates adiabatically at a power level of 3500
kW. Steam enters the turbine at 2400 kPa and 500oC and
exhausts from the turbine at 20 kPa as saturated vapor. What is the
flow rate of steam run through the turbine, and what is the turbine
efficiency? Draw the process on the P-H diagram.
An adiabatic steam power plant turbine receives 500kg/s in steady flow at 8MPa and 500 degrees...
An adiabatic steam power plant turbine receives 500kg/s in
steady flow at 8MPa and 500 degrees C(state 1), the steam exits at
15kPa with quality of 0.95(state 2 actual). Find a) isentropic
power output of the turbine using listed pressures, b) actual power
output of the turbine, c) isentropic efficiency of the turbine, d)
s2-s1
An adiabatic steam power plant turbine receives 500kg/s in steady flow at 8MPa and 500 degrees...
An adiabatic steam power plant turbine receives 500kg/s in
steady flow at 8MPa and 500 degrees C(state 1), the steam exits at
15kPa with quality of 0.95(state 2 actual). Find a) isentropic
power output of the turbine using listed pressures, b) actual power
output of the turbine, c) isentropic efficiency of the turbine, d)
s2-s1
Steam enters a turbine at a velocity of 200 m/s. The inlet conditions of the steam...
Steam enters a turbine at a velocity of 200 m/s. The inlet
conditions of the steam are at 4000 kPA and 500°C. The diameter of
the inlet pipe is 50 mm. The outlet conditions of the steam are 80
kPa and a quality of 1.0. The diameter of the outlet pipe is 250
mm. Determine the turbine power output in kJ/s assuming the kinetic
energy change and potential energy change are both negligible.
Calculate the change in kinetic energy to...
A steam power plant operates on a practical Rankine Cycle. The steam enters the turbine at...
A steam power plant operates on a practical Rankine Cycle. The
steam enters the turbine at 3 MPa and “648” K and is condensed in
the condenser at a pressure of 46 kPa. You are assigned on a
project to improve the thermal efficiency of this plant. a) Draw
the schematic of the plant and determine the thermal efficiency of
the practical cycle assuming that the efficiencies of pump and
turbine are 0.75 and 0.7, respectively. ( b) Draw a...
A steam power plant operates on the simple ideal rankine cycle. the steam enters the turbine...
A
steam power plant operates on the simple ideal rankine cycle. the
steam enters the turbine at 4 MPa and 500 C and leaves it at 50 kPa
and 150 C. the water leaves the condenser as a saturated liquid and
is subsequently displaced to the boiler by means of a pump at a
temperature of 85 C, which is the isentrophic efficiency of the
turbine?
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