Question

In: Mechanical Engineering

The temperature and pressure of the steam at the inlet of a high pressure turbine is...

The temperature and pressure of the steam at the inlet of a high pressure turbine is 500 ° C, respectively. It is 12 MPa and 300 ° C and 3MPa at its outlet. If the mass flow of steam is 400 kg / h, how much is the isentropic efficiency of the turbine?

Solutions

Expert Solution

samet mamat answered 11 months ago
Next > < Previous

Related Solutions

Steam expands in a thermally isolated turbine steadily. The inlet pressure is 1MPa and temperature is...
Steam expands in a thermally isolated turbine steadily. The inlet pressure is 1MPa and temperature is 800 C, and the exit state is 300 kPA and 150 C. a- Determine the power generated by the turbine per unit mass flow rate of steam. b- Evaluate the entropy generation rate per unit mass flow rate of steam and drive a conclusion whether the turbine operates reversibly, irreversibly or the operation is impossible.
Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat...
Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 6 MPa and 500°C and leaves as saturated vapor. Steam is then reheated to 400°C before it expands to a pressure of 10 kPa. Heat is transferred to the steam in the boiler at a rate of 6*104 kW. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 7°C. Show the...
Steam enters a turbine at a velocity of 200 m/s. The inlet conditions of the steam...
Steam enters a turbine at a velocity of 200 m/s. The inlet conditions of the steam are at 4000 kPA and 500°C. The diameter of the inlet pipe is 50 mm. The outlet conditions of the steam are 80 kPa and a quality of 1.0. The diameter of the outlet pipe is 250 mm. Determine the turbine power output in kJ/s assuming the kinetic energy change and potential energy change are both negligible. Calculate the change in kinetic energy to...
A steam turbine operates with steam at inlet conditions of 3.5 MPa and 3500 C. The...
A steam turbine operates with steam at inlet conditions of 3.5 MPa and 3500 C. The exit stream leave the turbine is at 0.8 MPa and is known to contain a mixture of saturated vapor and liquid. The steam rate through the turbine is 1000 kg/h. A (negligible) fraction of exit stream is bled through a throttle valve to 0.10 MPa and is found to be 1250 C. The measured output of the turbine is 100 kW. a) Determine the...
A study was conducted on a high-pressure inlet fogging method for a gas turbine engine. Researchers...
A study was conducted on a high-pressure inlet fogging method for a gas turbine engine. Researchers considered two models. Partial output is provided below. Source Df SS MS F Regression 5 148526859 29705372 94 Error 61 19370350 317547 Total ??? 167897208 Source Df SS MS F Regression ??? 142586570 47528857 ??? Error 63 25310639 401756 Total ??? 167897208 Answer the following questions rounding off at the nearest integer. The number of observations collected for the study is equal to The...
A study was conducted on a high-pressure inlet fogging method for a gas turbine engine. Researchers...
A study was conducted on a high-pressure inlet fogging method for a gas turbine engine. Researchers considered two models. Partial output is provided below. Source Df SS MS F Regression 5 148526859 29705372 94 Error 61 19370350 317547 Total ??? 167897208 Source Df SS MS F Regression ??? 142586570 47528857 ??? Error 63 25310639 401756 Total ??? 167897208 Answer the following questions rounding off at the nearest integer. 1. The number of observations collected for the study is equal to...
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)...
An ideal Rankine cycle operates with a turbine inlet pressure of 600 psia and a turbine...
An ideal Rankine cycle operates with a turbine inlet pressure of 600 psia and a turbine inlet temperature of 526 oF. The steam is isentropically expanded through the turbine to 15 psia as illustrated on the T-s diagram shown below. Using the Mollier diagram, determine the enthalpy at the turbine inlet, in BTU/lbm, under these operating conditions. State your answer in whole numbers.
An ideal Rankine cycle operates with a turbine inlet pressure of 900 psia and a turbine...
An ideal Rankine cycle operates with a turbine inlet pressure of 900 psia and a turbine inlet temperature of 572 oF. The steam is isentropically expanded through the turbine to 5 psia as illustrated on the T-s diagram shown below. Using the Mollier diagram, determine the percent moisture at the turbine outlet under these operating conditions. State your answer in whole numbers.
The velocity of steam at inlet to a simple impulse turbine is 1200 m/s and the...
The velocity of steam at inlet to a simple impulse turbine is 1200 m/s and the nozzle angle is 21°. The blade speed is 500 m/s and the blades are symmetrical. Evaluate: The blade angles if the steam is to enter the blades without shock. If the friction effects on the blade are negligible, specify the tangential force on the blades and the diagram power for a mass flow of 0.85 kg/s. What are the axial thrust and the diagram...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT