Question

nitrogen gas enters an adiabatic steady flow device at 0.20 MPa, 120 C with a velocity...

nitrogen gas enters an adiabatic steady flow device at 0.20 MPa, 120 C with a velocity of 16.57 m/s. At the exit, conditions are 2.40 MPa and 520 C. This device is a compressor or a turbine and kinetic and potential energies may be neglected. the inlet is a circular duct with a diameter of 12.00 cm.
For nitrogen M=28. Find other properties in Table A-20. R = 8.314
1. Find the mass flow rate of the gas (kg/s)
2. Find the power of this device in kW
3. This device is a ___ because ____.

Engineering   Chemical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Steam at 250oC and 1 MPa enters a compressor at a steady rate of 2 m3...
Steam at 250oC and 1 MPa enters a compressor at a steady rate of 2 m3 /s with a velocity of 0.1 m/s. The device uses 6500 kJ/s of energy to compress the steam to a temperature of 500oC and a pressure of 4 MPa. Assuming that this device is adiabatic and that you can ignore potential energy changes, calculate the steam velocity and mass flow rate at the exit of the compressor.
Nitrogen gas at 50 kPa and 7°C enters an adiabatic diffuser steadily with a velocity of...
Nitrogen gas at 50 kPa and 7°C enters an adiabatic diffuser steadily with a velocity of 180 m/s and leaves at 109 kPa and 22°C. Determine (a) the exit velocity of the nitrogen and (b) the ratio of the inlet to exit area A1/A2
Nitrogen gas at 60 kPa and 78C enters an adiabatic diffuser steadily with a velocity of...
Nitrogen gas at 60 kPa and 78C enters an adiabatic diffuser steadily with a velocity of 275 m/s and leaves at 85 kPa and 278C. Determine (a) the exit velocity of the nitrogen and (b) the ratio of the inlet to exit area A1/A2. Reconsider Using EES (or other) software, investigate the effect of the inlet veloc- ity on the exit velocity and the ratio of the inlet-to-exit area. Let the inlet velocity vary from 210 to 350 m/s. Plot...
Argon gas enters an adiabatic turbine at 800°C and 1.5 MPa at a rate of 80...
Argon gas enters an adiabatic turbine at 800°C and 1.5 MPa at a rate of 80 kg/min and exhausts at 200 kPa. If the power output of the turbine is 300 kW, determine the isentropic efficiency of the turbine. Use the table containing the ideal gas specific heats of various common gases. The isentropic efficiency of the turbine is  %.
Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C...
Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a low velocity and exits at 1 MPa and 347°C with a velocity of 90 m/s. The compressor is cooled at a rate of 1500 kJ/min, and the power input to the compressor is 250 kW. Determine (a) temperature at the compressor exit Investigate the effect of cooling rate from 1300 kJ/min to 1600 kJ/min in steps of 50 kJ/min on the mass...
Consider an adiabatic turbine. At steady mass flow rate of 10 kg/s, steam enter the turbine...
Consider an adiabatic turbine. At steady mass flow rate of 10 kg/s, steam enter the turbine at 4.5 MPa, 600°c and 85 m/s and leaves the turbine at 40 kPa, quality of 0.8 and 50 m/s. Determine : a) the power output b) the turbine inlet area
Air flows steadily through an adiabatic turbine, entering at 1.4 MPa, 600°C, and 178 m/s and...
Air flows steadily through an adiabatic turbine, entering at 1.4 MPa, 600°C, and 178 m/s and leaving at 150 kPa, 200°C, and 210 m/s. The inlet of the turbine is 105 cm2 . Assume that air is an ideal gas with constant specific heat. Given CP = 1.013 kJ/kgK. Estimate: i) the mass flow rate of the air ii) the power output of the turbine, in kW
Steam flows steadily through an adiabatic turbine. The inlet conditions are: 20 MPa, 500°C, 90 m/s...
Steam flows steadily through an adiabatic turbine. The inlet conditions are: 20 MPa, 500°C, 90 m/s and the exit conditions are 20 kPa, 95% quality, and 60 m/s. The mass flow rate of the steam is 15 kg/s. Find: a) The change in kinetic energy of the steam, (5 points) b) The power output, and (5 points) c) The turbine inlet area. (5 points)
Water vapor at 6 MPa, 500°C enters a turbine operating at steady state and expands to...
Water vapor at 6 MPa, 500°C enters a turbine operating at steady state and expands to 20 kPa. The mass flow rate is 3 kg/s, and the power developed is 2626 kW. Stray heat transfer and kinetic and potential energy effects are negligible. Determine: (a) the isentropic turbine efficiency and (b) the rate of entropy production within the turbine, in kW/K.
Steam enters an adiabatic turbine at 5 Mpa 500 oC with a mass flow rate of...
Steam enters an adiabatic turbine at 5 Mpa 500 oC with a mass flow rate of 2 kg/s and leaves at 100 kpa. The isentropic efficiency of the turbine is 90%. Find (12 points) (a) Actual work output of the turbine _______________ (7 points) b) Maximum work output of the turbine_______________(3 points) (c) Entropy change during this process __________________________(2 points)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT