A heavily insulated steam turbine operates steadily and is supplied with 1 kg/s steam at 2MPa,...

A heavily insulated steam turbine operates steadily and is supplied with 1 kg/s steam at 2MPa, 400 deg C. If the outlet temperature is 100 deg C and the turbine has an output of 1000 kW determine the quality of the outlet steam, the rate of entropy generation and the isentropic efficiency of the turbine. (Changes in kinetic and potential energy are negligible).

Solutions

Expert Solution

samet mamat answered 1 year ago

Next > < Previous

Related Solutions

A heavily insulated steam turbine operates steadily and is supplied with 1 kg/s steam at 2MPa,...

1. A steam turbine operates adiabatically with a steam rate of 25 kg/s. The steam is...

1. A steam turbine operates adiabatically with a steam rate of 25 kg/s. The steam is supplied at 300 kPA and 400 oC and discharged at 40 kPA and 100 oC. Use steam tables to solve this problem. a. Determine the power output of the turbine. b. Determine the power output of turbine for reversible process.

A steam turbine operates adiabatically with a steam rate of 25 kg/s. Due to frication and...

A steam turbine operates adiabatically with a steam rate of 25 kg/s. Due to frication and mechanical reason, the turbine operates irreversibly. The steam at inlet of the turbine is at 1300 kPa and 400 oC and discharges at 40 kPa and 100 oC. (1) What is the power output of the turbine? (2) Calculate the efficiency of the turbine (adiabatically irreversible) in comparison with a turbine that operate reversibly and adiabatically from the same initial conditions (1300 kPa and...

Saturated vapor steam enters a well-insulated turbine at 300oC. The mass flow rate is 1.00 kg/s...

Saturated vapor steam enters a well-insulated turbine at 300oC. The mass flow rate is 1.00 kg/s and the exit pressure is 50 kPa. Determine the final state of the steam if the turbine power output is 400 kW. a). What is the amount of heat transfer in or out the turbine ? b). Explain or show your calculation for your answer in a). c). What is the substance that you use to look for pure substance properties ? d)....

An adiabatic steam turbine receives 50 kg/s of superheated steam at 5 MPa and 500oC. Steam...

An adiabatic steam turbine receives 50 kg/s of superheated steam at 5 MPa and 500oC. Steam exits the turbine with a pressure of 100 kPa. Determine the minimum exit quality and the maximum power output of the turbine in kW.

A single stage steam turbine is supplied with steam at 5 bars, 200 C at the...

A single stage steam turbine is supplied with steam at 5 bars, 200 C at the rate of 50kgmin. It exhausts into a condenser at a pressure of 0.2 bars. The blade speed is 400msec. Nozzles are inclined at an angle of 20 to the plane of the wheel and outlet blade angle 30. Neglecting friction losses, the power developed by the turbine will be?

Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4 MPa,...

Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4 MPa, 500°C and 80 m/s, and the exit conditions are 30 kPa, 92% quality and 50 m/s. The mass flowrate of the steam is 12 kg/s. Investigate the effect of the turbine exit pressure on the power output of the turbine. Let the exit pressure vary from 10 to 200 kPa. Plot (1) T2 vs P2 and 2) Plot the power output (W_dot_T in MW)...

2 kg/s of steam enters a turbine operating at steady state at 1 MPa, 200oC and...

2 kg/s of steam enters a turbine operating at steady state at 1 MPa, 200oC and exits at 40oC with a quality of 83%. Stray heat transfer and kinetic and potential energy effects are negligible. Determine (a) the power developed by the turbine, in kW, (b) the change in specific entropy from inlet to exit, in kJ/kg·K.

A steam turbine receives superheated steam at 18.0 kg/s, 500.°C, and 3.00 MPa and exhausts it...

A steam turbine receives superheated steam at 18.0 kg/s, 500.°C, and 3.00 MPa and exhausts it to 10 kPa with a quality of 96%. If the turbine is assumed to be internally reversible, determine the rate of heat loss from the turbine surface if the power output is 20.MW The surface temperature of the turbine is uniform at 350.°C, and the local environment (ground state) is taken to be saturated liquid water at T0 = 20.0°C. Neglect all flow stream...

A mass flow rate of 2 kg/s of steam is expanded in an adiabatic turbine with...

A mass flow rate of 2 kg/s of steam is expanded in an adiabatic turbine with an isentropic efficiency of 0.92. The steam enters at 3 MPa and 400 C and leaves at 30 kPa. Determine how much power the turbine is producing. Express your result in kW. (Sol: 1649 kW)

Subjects