Question
In: Mechanical Engineering
Steam enters an adiabaticnozzle operating at steady state at 20 bar, 320°C, with a velocity of...
Steam enters an adiabaticnozzle operating at steady state at 20 bar, 320°C, with a velocity of 100 m/s. The exit pressure and temperature are 7 bar and 200°C, respectively. The mass flow rate is 5 kg/s. Neglecting potential energychanges, determine:
a.the exit velocity, in m/s.
b.the exit flow area, in cm2
Solutions
samet mamat answered 7 months agoRelated Solutions
Water vapor at 5 bar, 320°C enters a turbine operating at steady state with a volumetric...
Water vapor at 5 bar, 320°C enters a turbine operating at steady
state with a volumetric flow rate of 3 m3/s and expands
adiabatically to an exit state of 1 bar, 160°C. Kinetic and
potential energy effects are negligible.
Determine for the turbine:
(a) the power developed, in kW.
(b) the rate of entropy production, in kW/K.
(c) the percent isentropic turbine efficiency.
Water vapor at 5 bar, 320°C enters a turbine operating at steady state with a volumetric...
Water vapor at 5 bar, 320°C enters a turbine operating at steady
state with a volumetric flow rate of 3 m3/s and expands
adiabatically to an exit state of 1 bar, 200°C. Kinetic and
potential energy effects are negligible. Determine for the turbine:
(a) the power developed, in kW. (b) the rate of entropy production,
in kW/K. (c) the percent isentropic turbine efficiency.
Water vapor enters a turbine operating at steady state at 480°C, 90 bar, with a velocity...
Water vapor enters a turbine operating at steady state at 480°C,
90 bar, with a velocity of 247 m/s, and expands adiabatically to
the exit, where it is saturated vapor at 12 bar, with a velocity of
113 m/s. The exit diameter is 0.22 m. Determine the power developed
by the turbine, in kW.
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.
Water vapor at 5 MPa, 320°C enters a turbine operating at steady state and expands to...
Water vapor at 5 MPa, 320°C enters a turbine operating at steady
state and expands to 0.1 bar. The mass flow rate is 2.52 kg/s, and
the isentropic turbine efficiency is 92%. Stray heat transfer and
kinetic and potential energy effects are negligible.
Determine the power developed by the turbine, in kW.
Air enters a compressor operating at steady state at 1.05 bar, 300 K, with a volumetric...
Air enters a compressor operating at steady state at 1.05 bar,
300 K, with a volumetric flow rate of 48 m3/min and
exits at 12 bar, 400 K. Heat transfer occurs at a rate of 8 kW from
the compressor to its surroundings.
Assuming the ideal gas model for air and neglecting kinetic and
potential energy effects, determine the power input, in kW.
Air enters a turbine operating at steady state at 6 bar, 1200 K and expands to...
Air enters a turbine operating at steady state at 6 bar, 1200 K
and expands to 0.8 bar. The turbine is well insulated, and kinetic
and potential energy effects can be neglected.
Assuming ideal gas behavior for the air, what is the maximum
theoretical work that could be developed by the turbine in kJ per
kg of air flow?
Air enters a turbine operating at steady state at 6 bar, 1600 K and expands to...
Air enters a turbine operating at steady state at 6 bar, 1600 K
and expands to 0.8 bar. The turbine is well insulated, and kinetic
and potential energy effects can be neglected. Assuming ideal gas
behavior for the air, what is the maximum theoretical work that
could be developed by the turbine in kJ per kg of air flow?
Air enters a turbine operating at steady state at 10 bar, 1200 K and expands to...
Air enters a turbine operating at steady state at 10 bar, 1200 K
and expands to 0.8 bar. The turbine is well insulated, and kinetic
and potential energy effects can be neglected. Assuming ideal gas
behavior for the air, what is the maximum theoretical work that
could be developed by the turbine in kJ per kg of air flow?
Nitrogen (N2) at 1 bar, 300 K enters a compressor operating at steady state and is...
Nitrogen (N2) at 1 bar, 300 K enters a compressor
operating at steady state and is compressed adiabatically to an
exit state of 16 bar, 750 K. The N2 is modeled as an
ideal gas and kinetic and potential energy effects are negligible.
Determine the work input, in kJ per kg of N2 flowing,
the rate of entropy production, in kJ/K per kg of N2
flowing, and the isentropic compressor efficiency.
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