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A steady-flow adiabatic turbine (expander) accepts gas at conditions T1, P1 and discharges at conditions T2,...
A steady-flow adiabatic turbine (expander) accepts gas at conditions T1, P1 and discharges at conditions T2, P2. Assuming ideal gases, determine (per mole of gas) W, Wideal, Wlost, and SG for the following case. Take Tσ = 300 K and R = 8.314 J·mol−1·K−1.
T1 = 530 K, P1 = 8 bar, T2 = 424 K, P2 = 1.6 bar, and CP/R = 7/2.
Solutions
Amanda K answered 7 months agoRelated Solutions
Water at p1 = 20 bar, T1 = 400oC enters a turbine operating at steady state...
Water at p1 = 20 bar, T1
= 400oC enters a turbine operating at steady state and
exits at p2 = 1.5 bar, T2 =
220oC. The water mass flow rate is 4000 kg/hour. Stray
heat transfer and kinetic and potential energy effects are
negligible.
Determine the power produced by the turbine, in kW, and the rate of
entropy production in the turbine, in kW/K.
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.
Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in2, T1 =...
Air enters the compressor of a simple gas turbine at
p1 = 14 lbf/in2, T1 = 520°R. The
isentropic efficiencies of the compressor and turbine are 83 and
87%, respectively. The compressor pressure ratio is 16 and the
temperature at the turbine inlet is 2500°R. The volumetric flow
rate of the air entering the compressor is 9000 ft3/min.
Use an air-standard analysis.
Determine all temperatures at each state.
A) Determine the net power developed, in Btu/h.
B) Determine the thermal...
Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in2, T1 =...
Air enters the compressor of a simple gas turbine at p1 = 14
lbf/in2, T1 = 520°R. The isentropic efficiencies of the compressor
and turbine are 83 and 87%, respectively. The compressor pressure
ratio is 16 and the temperature at the turbine inlet is 2500°R. The
volumetric flow rate of the air entering the compressor is 9000
ft3/min. Use an air-standard analysis.
Determine the net power developed, in Btu/h.
Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in2, T1 =...
Air enters the compressor of a simple gas turbine at p1 = 14
lbf/in2, T1 = 520°R. The isentropic efficiencies of the compressor
and turbine are 83 and 87%, respectively. The compressor pressure
ratio is 16 and the temperature at the turbine inlet is 2500°R. The
volumetric flow rate of the air entering the compressor is 9000
ft3/min. Use an air-standard analysis.
Determine the net power developed, in Btu/h.
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 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
Consider a gas turbine engine, fueled by natural gas, for generating electricity. A.) Calculate the adiabatic...
Consider a gas turbine engine, fueled by natural gas, for
generating electricity.
A.) Calculate the adiabatic flame temperature for this system,
assuming we’ll use about 110% TA.
B.) Estimate (calculate) the power output for this turbine, per
lbm or kg of air.
C.) If I’d like to provide the generator with 12,000 shp (shaft
horsepower), what air mass flow do I need?
D.) If this is an open cycle turbine, the exhaust gas has
considerable remaining energy. How much heat...
Consider now a turbine that operates with steam with T1 = 450◦C and P1= 8.0 MPa...
Consider now a turbine that operates with steam with T1 = 450◦C
and P1= 8.0 MPa and P2 = 30 kPa. The efficiency is 80% and the mass
flow rate is 80 kg/s. You may assume the velocities are zero. You
may also assume q=0.
What is the exhaust temperature and quality (if saturated) for
100% efficiency?
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