Question

3. Air with 100 kPa, 300 K flows into the insulating compressor with a flow rate...

3. Air with 100 kPa, 300 K flows into the insulating compressor with a flow rate of 2 kg/s, compressed to 1000 kPa and then discharged to the exit. The back entropy efficiency of the compressor is 82%. The gas constant of the ideal gas is the air, and the meanness of the air is , The mean ratio is k=1.4. Ignore kinetic energy and position energy.
1) Draw a schematic diagram and a T-s plot of the compressor.
2) Obtain the air temperature and the input (kW) of the compressor at the exit.
3) Obtain the amount of entropy production from the compressor.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Problem 6.100 SI Carbon dioxide (CO2) at 1 bar, 300 K enters a compressor operating at...
Problem 6.100 SI 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, 590 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...
Air at 100 kPa and 10°C enters a compressor and is brought to 1000 kPa and...
Air at 100 kPa and 10°C enters a compressor and is brought to 1000 kPa and 50°C. The constant pressure heat capacity of air is 1.01 kJ/kg K. If 15 kg/min of air are to be compressed, determine the power require- ment of the compressor. State your assumptions. (12.625 kW)
An isentropic compressor that takes in air from the atmosphere at 100 kPa and 300 K...
An isentropic compressor that takes in air from the atmosphere at 100 kPa and 300 K compresses it to 1 MPa. The compressor feeds into a rigid tank that is initially filled with 5 kg of air at a pressure of 500 kPa and a temperature of 500 K. Once the mass in the tank reaches 8 kg, the compressor will stop to prevent the tank from rupturing, which will occur if the pressure exceeds 1000 kPa. a) Determine the...
Use cold-air-standard analysis with the fluid modeled as an ideal gas with R=0.287 kJ/kg-K and constant...
Use cold-air-standard analysis with the fluid modeled as an ideal gas with R=0.287 kJ/kg-K and constant k=1.4. Neglect changes in kinetic and potential energy. Consider a SSSF of air at 300 K and 100 kPa entering the compressor of a Simple Brayton Cycle Gas Turbine powerplant. The cycle pressure ratio is 40 and maximum cycle temperature is 1800 K. For compressor isentropic efficiency of 82% the compressor work input per unit mass = __ kJ/kg (enter the nearest positive integer...
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...
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 550 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.
Carbon dioxide enters an adiabatic compressor at100 kPa and 300 K at a rate of 0.5...
Carbon dioxide enters an adiabatic compressor at100 kPa and 300 K at a rate of 0.5 kg/s and exits at 600 kPa and 450 K. Neglecting the kinetic energy changes, determine the isentropic efficiency of the compressor. Assume constant specific heats. please show all the work and how you got it please and thank you
NO INTERPOLATION REQUIRED Air enters an adiabatic turbine at 1000 kPa and 1625 degrees C (state...
NO INTERPOLATION REQUIRED Air enters an adiabatic turbine at 1000 kPa and 1625 degrees C (state 1) with a mass flow rate of 5 kg/s and leaves at 100 kPa the isentropic efficiency of the turbine is 85%. Neglecting the kinetic energy change of the steam, and considering variable specific heats, determine: a. the isentropic power of the turbine Isentropic power in kW b. the temperature at the turbine exit temperature at exit in degrees C c. the actual power...
Air enters the compressor of an ideal brayton refrigeration cycle at 100 kPa, 300K. The compressor...
Air enters the compressor of an ideal brayton refrigeration cycle at 100 kPa, 300K. The compressor presure ratio is 3.75, and the temperature at the turbine inlet is 350 K. The Brayton cycle is then modified by the introduction of a regenerative heat exchanger. In the modified cycle, compressed air enters the regenerative heat exchanger at 350 K and is cooled to 320 K before enetering the turbine. Determine, for the modified cycle, (A) the lowest temperature, in K. (B)...
Air enters the compressor of an ideal gas refrigeration cycle at 7oC and 40 kPa and...
Air enters the compressor of an ideal gas refrigeration cycle at 7oC and 40 kPa and the turbine at 37oC and 170 kPa. The mass flow rate of air through the cycle is 0.3 kg/sec. Assuming variable specific heats for air, determine (a) the rate of refrigeration, (b) the net power input, and (c) the coefficient of performance. Also, draw the T-s diagram of the gas refrigeration cycle.   
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT