Question

Steam at 6 MPA, 600°C, enters a well-insulated turbine operating at steady state and exits at...

Steam at 6 MPA, 600°C, enters a well-insulated turbine operating at steady state and exits at 0.1 bar. The isentropic efficiency of the turbine is 94.7%. Assuming the kinetic and potential energy effects to be negligible, determine:

(a) Work output, in kJ/kg,

(b) The temperature at the exit of the turbine, in °C, and

(c) The rate of entropy production within the turbine, in kJ/K per kg of steam flowing through the turbine.

(All steps required – Given/Find/Schematic/Engineering Model/Analysis)

THANK YOU in advance!

Engineering   Mechanical-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
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 flowing at steady state enters a turbine at 400 degrees Celsius and 7 MPa. The...
Steam flowing at steady state enters a turbine at 400 degrees Celsius and 7 MPa. The exit is at 0.275 MPa. The turbine is 85% efficient. What is the quality of the exiting stream? How much work is generated per kg of steam?
Water at p1 = 20 bar, T1 = 400oC enters a turbine operating at steady state...
Water at p1 = 20 bar, T1 = 400oC enters a turbine operating at steady state and exits at p2 = 1.5 bar, T2 = 230oC. The water mass flow rate is 4000 kg/hour. Stray heat transfer and kinetic and potential energy effects are negligible. Determine the power produced by the turbine, in kW, and the rate of entropy production in the turbine, in kW/K.
Air enters a counterflow heat exchanger operating at steady state at 22°C, 0.1 MPa and exits...
Air enters a counterflow heat exchanger operating at steady state at 22°C, 0.1 MPa and exits at 7°C. Refrigerant 134a enters at 0.2 MPa, a quality of 0.21, and a mass flow rate of 30 kg/h. Refrigerant exits at 0°C. There is no significant change in pressure for either stream. (a) For the Refrigerant 134a stream, determine the rate of heat transfer, in kJ/h (b) For the refrigerant stream evaluate the change in flow exergy rate, in kJ/h. (c) For...
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...
Steam enters an adiabatic turbine at 7 MPa, 700 °C and 80 m/s and leaves at...
Steam enters an adiabatic turbine at 7 MPa, 700 °C and 80 m/s and leaves at 50 kPa, 150 °C, and 140 m/s. If the power output of the turbine is 6 MW, determine: i)          Mass flowrate of the steam flowing through the turbine.                                      ii)        The isentropic efficiency of the turbine.
In a power plant based on a simple Rankine cycle, steam enters the turbine at 15...
In a power plant based on a simple Rankine cycle, steam enters the turbine at 15 MPa and 900°C. The condenser pressure is 5 kPa. The turbine operates adiabatically and has an isentropic efficiency of 85%, and the pump also operates adiabatically and has an isentropic efficiency of 80%. Determine the work required to pump the water to the boiler in kJ/kg of water flowing, and the enthalpy of the water leaving the pump.
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...
Steam enters an adiabatic turbine at 5 MPa , 800 C and leaves at 50 kPa,...
Steam enters an adiabatic turbine at 5 MPa , 800 C and leaves at 50 kPa, 150 C. Determine the isentropic efficiency of the turbine 73% 10% 100% 96%
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