Question
In: Mechanical Engineering
Saturated water vapor at 300°F enters a compressor operating at steady state with a mass flow...
Saturated water vapor at 300°F enters a compressor operating at
steady state with a mass flow rate of 5 lb/s and is compressed
adiabatically to 750 lbf/in.2
If the power input is 2150 hp, determine for the compressor:
(a) the percent isentropic compressor efficiency and
(b) the rate of entropy production, in hp/°R.
Ignore kinetic and potential energy effects.
Solutions
samet mamat answered 2 years agoRelated Solutions
Saturated water vapor at 300°F enters a compressor operating at steady state with a mass flow...
Saturated water vapor at 300°F enters a compressor operating at
steady state with a mass flow rate of 5 lb/s and is compressed
adiabatically to 650 lbf/in.2
If the power input is 2150 hp, determine for the compressor:
(a) the percent isentropic compressor efficiency and
(b) the rate of entropy production, in hp/°R.
Ignore kinetic and potential energy effects.
Saturated water vapor at 300°F enters a compressor operating at steady state with a mass flow...
Saturated water vapor at 300°F enters a compressor operating at
steady state with a mass flow rate of 5 lb/s and is compressed
adiabatically to 650 lbf/in.2
If the power input is 2150 hp, determine for the compressor:
(a) the percent isentropic compressor efficiency and
(b) the rate of entropy production, in hp/°R.
Ignore kinetic and potential energy effects.
Saturated water vapor at 300F enters a compressor operating at steady state with a mass flow...
Saturated water vapor at 300F enters a compressor operating at
steady state with a mass flow rate of 5 lb/s and is compressed
adiabatically to 750 psi.
Determine:
a) The percent isentropic compressor efficiency.
b) The rate of entropy production, in hp/R.
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26oC with...
Refrigerant 134a enters an insulated compressor operating at
steady state as saturated vapor at -26oC with a
volumetric flow rate of 0.18 m3/s. Refrigerant exits at
8 bar, 70oC. Changes in kinetic and potential energy
from inlet to exit can be ignored.
Determine the volumetric flow rate at the exit, in m3/s,
and the compressor power, in kW.
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -20oC with...
Refrigerant 134a enters an insulated compressor operating at
steady state as saturated vapor at -20oC with a
volumetric flow rate of 0.18 m3/s. Refrigerant exits at
9 bar, 70oC. Changes in kinetic and potential energy
from inlet to exit can be ignored.
Determine the volumetric flow rate at the exit, in m3/s,
and the compressor power, in kW.
Methane (CH4) enters a compressor operating at steady state with a mass flow rate of 170...
Methane (CH4) enters a compressor operating at steady state with
a mass flow rate of 170 lbm/hr. The methane enters the compressor
at p1 = 15 lbf/in2 , T1 = 80F and exits at p2 = 100 lbf/in2 . The
work input to the compressor is 15 hp. Assume ideal gas behavior
for the methane with constant specific heats (cp = 0.538 Btu/lbm·R,
cv = 0.414 Btu/lbm·R). Kinetic and potential energy effects are
negligible and the compressor is insulated
1)Determine...
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.
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.
Water vapor at 800 lbf/in.2, 1000 F enters a turbine operating at steady state and expands...
Water vapor at 800 lbf/in.2, 1000 F enters a turbine operating at
steady state and expands adiabatically to 2 lbf/ in.2, developing
work at a rate of 490 Btu per lb of vapor flowing. Determine the
condition at the turbine exit: two- phase liquid–vapor or
superheated vapor? Also, evaluate the isentropic turbine
efficiency. Kinetic and potential energy effects are
negligible.
Carbon dioxide (CO2) at 1 bar, 300 K enters a compressor operating at steady state and...
Carbon dioxide (CO2) at 1 bar, 300 K enters a
compressor operating at steady state and is compressed
adiabatically to an exit state of 10 bar, 540 K. The CO2
is modeled as an ideal gas, and kinetic and potential energy
effects are negligible.
For the compressor, determine:
(a) the work input, in kJ per kg of CO2 flowing,
(b) the rate of entropy production, in kJ/K per kg of
CO2 flowing, and
(c) the percent isentropic compressor efficiency.
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