Air enters a compressor at 95kPa, 15C at a rate of 50 cubic meters per second....
Air enters a compressor at 95kPa, 15C at a rate of 50 cubic meters per second. It leaves at 1.2 MPa. The process is essentially adiabatic with no changes in potential or kinetic energy. Determine the power required to drive the compressor if a. The process is reversible b. The compressor has an isentropic efficiency of 87%
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Air enters a compressor at 95kPa, 15C at a rate of 50 cubic
meters per second....
1 MPa Isentropic Efficiency of a Compressor Refrigerant-134a enters an adiabatic compressor as a saturated vapor...
1 MPa Isentropic Efficiency of a Compressor Refrigerant-134a enters an adiabatic compressor as a saturated vapor at 100kPa at a rate of 0.7 m/min and exits at 1-MPa pressure. The isentropic efficiency of the compressor is 87%. R-134a Compressor Isentropic Compressor Work hs-h 100 kPa sat. vapor Actual Compressor Work Determine the refrigerant properties at the inlet and outlet for an isentropic process. Actual 2s entropic procEss Inlet state Determine the actual isentropic enthalpy from the efficiency. (Ans: 289.71 J/kg)...
6. Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of...
6. Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of 0.7 m3/min and exits at 1 MPa pressure. If the isentropic efficiency of the compressor is 87%, determine (a) the temperature of the refrigerant at the exit of the compressor, (b) the power input (in kW), and (c) the rate of entropy generation during this process.
Air enters an adiabatic compressor at 17 Cand 90 KPa with a mass flow rate of...
Air enters an adiabatic compressor at 17 Cand 90 KPa with a mass flow rate of 0.2 Kg/s and exits at 400 KPa. The compressor has an isentropic effeciency of 88 % assuming constant specific heats at room temperature determine: A) The power input to the compressor B) The total rate of exergy destroyed during the process C) The second law efficiency of the compressor D) Draw the actual and isentropic process on T-5 diagram
Air is compressed by an adiabatic compressor from 95 kPa and 27°C to 600 kPa and...
Air is compressed by an adiabatic compressor from 95 kPa and 27°C to 600 kPa and 277°C. Assuming variable specific heats and neglecting the changes in kinetic and potential energies, determine (a) the isentropic efficiency of the compressor and (b) the exit temperature of air if the process were reversible. b) Texit
11) An adiabatic compressor is to be powered by a direct-coupled adiabatic turbine that is also...
11) An adiabatic compressor is to be powered by a direct-coupled adiabatic turbine that is also driving a generator. Steam enters the turbine at 10 MPa and 500 °C at a rate of 15 kgs and exits at 20 kPa. The turbine isentropic efficiency is 85% Air enters the compressor at 98 kPa and 230C at a rate of 10 kg/s, and exits the compressor at 1.2 MPa. The compressor efficiency is 75 %. Determine: a) the power requirement of...
NGINEERI 13. A centrifugal compressor (not a piston type) compresses the air from the ambient condition at T, 300K and Pi 1 bar to P 10 bar following three different, standalone paths: isentropic,...
NGINEERI 13. A centrifugal compressor (not a piston type) compresses the air from the ambient condition at T, 300K and Pi 1 bar to P 10 bar following three different, standalone paths: isentropic, reversible isothermal, and an irreversible adiabatic process, respectively. (Note: These processes are not sequential processes; rather each of them is an independent, standalone p They all start at the same initial condition at state 1, but they end at different state 2.) The mass flow rate is...
Thermodynamics: Adiabatic Compressor
Air enters an adiabatic compressor at 100 kPa and 17 degrees Celsius at a rate of 2.4 m3/s, and it exits at 257 degrees Celsius. The compressor has anisentropic efficiency of 84 percent. Neglecting the changes in kinetic and potential energies, determine (a) the exit pressure of air and (b) thepower required to drive the compressor.
Air enters the compressor of an air-standard Brayton cycle with a volumetric flow rate of 60...
Air enters the compressor of an air-standard Brayton cycle with a volumetric flow rate of 60 m3/s at 0.8 bar, 280 K. The compressor pressure ratio is 17.5, and the maximum cycle temperature is 2100 K. For the compressor, the isentropic efficiency is 92% and for the turbine the isentropic efficiency is 95%. Determine: (a) the net power developed, in kW. (b) the rate of heat addition in the combustor, in kW. (c) the percent thermal efficiency of the cycle.
A vapor compression refrigeration cycle utilizes R-134a as the working fluid. The refrigerant flow rate is 50 g/s. Vapor at 150 kPa and -10 0C enters the compressor and leaves at 1.2 MPa and 75 0C. Th...
A vapor compression refrigeration cycle utilizes R-134a as the working fluid. The refrigerant flow rate is 50 g/s. Vapor at 150 kPa and -10 0C enters the compressor and leaves at 1.2 MPa and 75 0C. The power input to the non-adiabatic compressor is measured and found to be 2.4 kW. The refrigerant enters the expansion valve at 1.15 MPa and 40 0C and leaves the evaporator at 160 kPa and -15 0C. Determine the entropy generation in the compression...
Air enters the compressor of a regenerative air-standard Brayton cycle with a volumetric flow rate of...
Air enters the compressor of a regenerative air-standard Brayton cycle with a volumetric flow rate of 20 m3/s at 0.8 bar, 280 K. The compressor pressure ratio is 20, and the maximum cycle temperature is 1950 K. For the compressor, the isentropic efficiency is 92% and for the turbine the isentropic efficiency is 95%. For a regenerator effectiveness of 86%, determine: (a) the net power developed, in MW. (b) the rate of heat addition in the combustor, in MW. (c)...
1 MPa Isentropic Efficiency of a Compressor Refrigerant-134a enters an adiabatic compressor as a saturated vapor at 100kPa at a rate of 0.7 m/min and exits at 1-MPa pressure. The isentropic efficiency of the compressor is 87%. R-134a Compressor Isentropic Compressor Work hs-h 100 kPa sat. vapor Actual Compressor Work Determine the refrigerant properties at the inlet and outlet for an isentropic process. Actual 2s entropic procEss Inlet state Determine the actual isentropic enthalpy from the efficiency. (Ans: 289.71 J/kg)...
6. Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa at a rate of 0.7 m3/min and exits at 1 MPa pressure. If the isentropic efficiency of the compressor is 87%, determine (a) the temperature of the refrigerant at the exit of the compressor, (b) the power input (in kW), and (c) the rate of entropy generation during this process.
Air enters an adiabatic compressor at 17 Cand 90 KPa with a mass flow rate of 0.2 Kg/s and exits at 400 KPa. The compressor has an isentropic effeciency of 88 % assuming constant specific heats at room temperature determine: A) The power input to the compressor B) The total rate of exergy destroyed during the process C) The second law efficiency of the compressor D) Draw the actual and isentropic process on T-5 diagram
Air is compressed by an adiabatic compressor from 95 kPa and 27°C to 600 kPa and 277°C. Assuming variable specific heats and neglecting the changes in kinetic and potential energies, determine (a) the isentropic efficiency of the compressor and (b) the exit temperature of air if the process were reversible. b) Texit
11) An adiabatic compressor is to be powered by a direct-coupled adiabatic turbine that is also driving a generator. Steam enters the turbine at 10 MPa and 500 °C at a rate of 15 kgs and exits at 20 kPa. The turbine isentropic efficiency is 85% Air enters the compressor at 98 kPa and 230C at a rate of 10 kg/s, and exits the compressor at 1.2 MPa. The compressor efficiency is 75 %. Determine: a) the power requirement of...
NGINEERI 13. A centrifugal compressor (not a piston type) compresses the air from the ambient condition at T, 300K and Pi 1 bar to P 10 bar following three different, standalone paths: isentropic, reversible isothermal, and an irreversible adiabatic process, respectively. (Note: These processes are not sequential processes; rather each of them is an independent, standalone p They all start at the same initial condition at state 1, but they end at different state 2.) The mass flow rate is...
Air enters the compressor of a regenerative air-standard Brayton cycle with a volumetric flow rate of 20 m3/s at 0.8 bar, 280 K. The compressor pressure ratio is 20, and the maximum cycle temperature is 1950 K. For the compressor, the isentropic efficiency is 92% and for the turbine the isentropic efficiency is 95%. For a regenerator effectiveness of 86%, determine: (a) the net power developed, in MW. (b) the rate of heat addition in the combustor, in MW. (c)...
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