Question

Air is expanded isentropically in an adiabatic turbine, to produce 115 kW of power. If the...

Air is expanded isentropically in an adiabatic turbine, to produce 115 kW of power. If the mass flow rate is 0.75 kg/s, and the air at the exit is 500 K and 155 kPa, then what is the temperature and pressure at the inlet of the turbine?

(a) The temperature is? K

(b) The pressure is? kPa

NOTE: Do NOT approximate the air as having a constant specific heat.

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
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...
An air turbine with inlet conditions of 500 kPa, 327 C operates in steady flow and...
An air turbine with inlet conditions of 500 kPa, 327 C operates in steady flow and has an actual power output of 70 kW. The discharge pressure is 100 kPa and the turbine has an efficiency of 0.8 at these operating conditions. Consider specific heats constant. a) Calculate the actual mass flow rate at the turbine exit. b) Calculate the actual turbine exit temperature. c) Show the actual and ideal processes on a T-s and P-v diagram.
Steam enters an adiabatic turbine at 140 bar and 560 C and leaves at 10 kPa....
Steam enters an adiabatic turbine at 140 bar and 560 C and leaves at 10 kPa. At the exit, the pressure and quality are 50 KPa and .90, respectively. Determine the power produced (kW) by the turbine if the mass flow rate is 1.63 kg/s.
A steam turbine has inlet steam pressure p1 = 1.4 MPa absolute. Inlet steam temperature is...
A steam turbine has inlet steam pressure p1 = 1.4 MPa absolute. Inlet steam temperature is T1 = 400 oC. This corresponds to inlet enthalpy per unit mass of h1 = 3121 kJ/kg. Exit pressure of the steam is p2 = 101 kPa absolute. Exit steam temperature is T2 = 100 oC. This corresponds to exit enthalpy per unit mass of h2 = 2676 kJ/kg. Inlet speed of the steam is V1 = 15 m/s and exit speed is V2...
P2) Steam flows steadily through an adiabatic turbine in a power plant. The inlet conditions of...
P2) Steam flows steadily through an adiabatic turbine in a power plant. The inlet conditions of the steam are 6 MPa, 400 °C and 119 cm2 . The exit conditions are 40 kPa, 92 percent quality, 50 m/s and 20 kg/s. Determine the power output.
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)
1) A nozzle is a device for increasing the velocity of a steadily flowing stream of...
1) A nozzle is a device for increasing the velocity of a steadily flowing stream of fluid. At the inlet to a certain nozzle the enthalpy of the fluid is 3025 kJ/kg and the velocity is 60 m/s. At the exit from the nozzle the enthalpy is 2790 kJ/kg. The nozzle is horizontal and there is negligible heat loss from it. (i) Find the velocity at the nozzle exit. (ii) If the inlet area is 0.1 m2 and specific volume...
An open cycle gas turbine using a regenration arrangement. The air enters the compressor at 1...
An open cycle gas turbine using a regenration arrangement. The air enters the compressor at 1 bar 288 K and is compressed to 10 bar with compressor effieciency= 0.85. The air is heated in regenerator and then enter in combustion chamber its temperature is raised ny 1700 k and during the process the pressure falls by 0.2 bar. The air is then expanded in the turbine and passes to regenerator which has 0.75 effectiveness and cause a pressure drop of...
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  %.
1) High pressure steam is continuously sent through a power generating turbine to produce power. The...
1) High pressure steam is continuously sent through a power generating turbine to produce power. The entering steam is at T=600 C and P = 60 bar. The exiting steam is at P = 5 bar. The flow rate of steam through the turbine is 0.3 kg/sec. Assuming the turbine is adiabatic and acting at max efficiency. a) What thermodynamic variable of the steam is the same upstream and downstream of the turbine? b) Find the temperature of the exiting...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT