Nitrogen gas at 60 kPa and 7°C enters an adiabatic diffuser steadily with a velocity of...
Nitrogen gas at 60 kPa and 7°C enters an adiabatic diffuser steadily with a velocity of 200 m/s and leaves at 85 kPa and 22°C. Determine (a) the exit velocity of the nitrogen and (b) the ratio of the inlet to exit area A1/A2.
Why in this question we ignore the value of mass flow rate ?
Homework Answers
since it a steady flow process
..Mass at inlet = Mass at exit... therefore masses on both sides of
equation gets cancelled ...and not need mass flow rate value in the
question to solve this.
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Nitrogen gas at 60 kPa and 7°C enters an adiabatic diffuser
steadily with a velocity of...
Nitrogen gas at 63 kPa and 7 C enters an adiabatic difuser steadily with a velocity...
Nitrogen gas at 63 kPa and 7 C enters an adiabatic difuser steadily with a velocity of 280 m/s and leaves at 95 kPa and 28 C. The molar mass of nitrogen is M- 28 kg/kmol and the enthalpies are 8141 kJ/kmol at 7 C and 8723 kJ/kmol at 28 C. a. Write down the energy balance equation specific to this problem. b. Determine the exit velocity. c. The ratio of the inlet to exit area Ai/A2.
Air at 10 degree C and 80 kPa enters the diffuser of a jet engine steadily...
Air at 10 degree C and 80 kPa enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.4 m^2.The air leaves the diffuser with a velocity that is very small compared with the inlet velocity. Determine the mass flow rate of the air and the temperature of the air leaving the diffuser. Air at 100 kPa and 280 K is compressed steadily to 600 kPa and 400 K....
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
Air at 12.7psia and 72oF enters an adiabatic diffuser steadily with a velocity of 775 ft/s...
Air at 12.7psia and 72oF enters an adiabatic diffuser steadily with a velocity of 775 ft/s and leaves with a low velocity at a pressure of 14.2 psia. The exit area of the diffuser is 3 times in the inlet area. Determine (a) the exit temperature and (b) the exit velocity of the air. Please show work for interpolation.
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A2) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [10 Marks]
thermodynamics Thermodynamics P5.31: - Steam at 3 MPa and 400°C enters an adiabatic nozle steadily with...
thermodynamics
Thermodynamics
P5.31: - Steam at 3 MPa and 400°C enters an adiabatic nozle steadily with a velocity of 40 m/s and leaves at 2.5 MPa and 300 m/s. Determine (a) the exit temperature (b) the ratio of the inlet to exit area A1/A2. P5.64:- Refrigerant-134a at 800 kPa and 25°C is throttled to a temperature of 220°C. Determine the pressure and the internal energy of the refrigerant at the final state P1-0.8 MPa
Carbon dioxide enters an adiabatic nozzle steadily at 1 MPa and 500°C with a mass flow...
Carbon dioxide enters an adiabatic nozzle steadily at 1 MPa and 500°C with a mass flow rate of 6000 kg/h and leaves at 100 kPa and 450 m/s. The inlet area of the nozzle is 40 cm2 Determine (a) the inlet velocity and (b) the exit temperature.
Air at 10°C and 80 kPa (static values) enters the diffuser of a jet engine steadily...
Air at 10°C and 80 kPa (static values) enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.4 m2. The air leaves the diffuser with a velocity of 40 m/s. Calculate 1) air density 2) air mass flow 3) inlet stagnation temprature 4) Inlet stgnation enthelpy 5) Outlet static temprature T2 a. 0.98 kg/m3 b. 1.01 kq/m3 c. 1.33 kg/m3 d. 90.1 kg/s e. 88.3 kg/m3 78.8 kg/m3...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [10 Marks)
Air enters a 16-cm-diameter pipe steadily at 200 kPa and 20°C with a velocity of 5...
Air enters a 16-cm-diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and it leaves the pipe at 180 kPa and 38°C. The gas constant of air is 0.287 kPa·m3/kg·K. Whats the volumetric flow rate of the inlet/outlet, mass flow rate and velocity & volume flow rate at the exit?
Nitrogen gas at 63 kPa and 7 C enters an adiabatic difuser steadily with a velocity of 280 m/s and leaves at 95 kPa and 28 C. The molar mass of nitrogen is M- 28 kg/kmol and the enthalpies are 8141 kJ/kmol at 7 C and 8723 kJ/kmol at 28 C. a. Write down the energy balance equation specific to this problem. b. Determine the exit velocity. c. The ratio of the inlet to exit area Ai/A2.
Air at 10 degree C and 80 kPa enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.4 m^2.The air leaves the diffuser with a velocity that is very small compared with the inlet velocity. Determine the mass flow rate of the air and the temperature of the air leaving the diffuser. Air at 100 kPa and 280 K is compressed steadily to 600 kPa and 400 K....
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A2) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [10 Marks]
thermodynamics
Thermodynamics
P5.31: - Steam at 3 MPa and 400°C enters an adiabatic nozle steadily with a velocity of 40 m/s and leaves at 2.5 MPa and 300 m/s. Determine (a) the exit temperature (b) the ratio of the inlet to exit area A1/A2. P5.64:- Refrigerant-134a at 800 kPa and 25°C is throttled to a temperature of 220°C. Determine the pressure and the internal energy of the refrigerant at the final state P1-0.8 MPa
Air at 10°C and 80 kPa (static values) enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.4 m2. The air leaves the diffuser with a velocity of 40 m/s. Calculate 1) air density 2) air mass flow 3) inlet stagnation temprature 4) Inlet stgnation enthelpy 5) Outlet static temprature T2 a. 0.98 kg/m3 b. 1.01 kq/m3 c. 1.33 kg/m3 d. 90.1 kg/s e. 88.3 kg/m3 78.8 kg/m3...
Water enters a diffuser at 80°C and 500 kPa with velocity of 100 m/s. It leaves the diffuser at 150°C and 700 kPa. The ratio of the inlet to exit area (A/A) is 0.5. Calculate the heat transfer to the water during the process in kJ/kg. [10 Marks)
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