Question

In: Mechanical Engineering

Steam at 50 Bar and 500oC is expanded isentropically through a single stage turbine to a...

Steam at 50 Bar and 500oC is expanded isentropically through a single stage turbine to a condenser operating at 1 bar.

Assuming the steam at turbine exit is Dry Saturated Steam and the turbine is required to produce a power output of 5.33MW. Calculate the required steam mass flow rate in kg/s to 2 decimal places.

Solutions

Expert Solution


Related Solutions

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 enters the nozzle of an impulse turbine stage at 60 bar and 500 °C and...
Steam enters the nozzle of an impulse turbine stage at 60 bar and 500 °C and leaves at 20 bar. Flow is adiabatic and reversible. The nozzle angle is 20°. The moving blade is symmetric, travels at optimum velocity, and assumed to be frictionless. It is also assumed that there is neither expansion nor contraction of the steam flow through the blade passage. Draw the velocity diagram and calculate (a) the blade efficiency and (b) the stage efficiency.
Air is expanded isentropically in an adiabatic turbine, to produce 135 kW of power. If the...
Air is expanded isentropically in an adiabatic turbine, to produce 135 kW of power. If the mass flow rate is 0.75 kg/s, and the air at the exit is 500 K and 305 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.
Argon at 400 K and 50 bar is adiabatically and reversibly expanded to 1 bar through...
Argon at 400 K and 50 bar is adiabatically and reversibly expanded to 1 bar through a turbine in a steady process. Compute the outlet temperature and work derived per mole.
The velocity of steam leaving the nozzle of a single-stage impulse turbine is 813 m/sec. The...
The velocity of steam leaving the nozzle of a single-stage impulse turbine is 813 m/sec. The nozzle angle is 20° and the blade speed corresponds to maximum blade efficiency. The moving blade is symmetric, assumed to be frictionless, and there is neither expansion nor contraction of the steam flow through the blade passage. Draw the velocity diagram and determine the relative velocity of steam leaving the blade.
1a) Superheated steam is expanded isentropically from 1000 psia and a temperature of 900 F to...
1a) Superheated steam is expanded isentropically from 1000 psia and a temperature of 900 F to saturated vapor. What is the change in specific enthalpy in BTU/lbm? 1b) Steam expands isentropically in a turbine from 500 psia and 1000 F to 14.7 psia. What is the difference in specific enthalpy, in BTU/lbm, between the initial and final conditions.?
Steam at 400°C and 40 bar flows steadily through an adiabatic turbine at a volumetric flowrate...
Steam at 400°C and 40 bar flows steadily through an adiabatic turbine at a volumetric flowrate of 5,000 m3/h. The steam leaving the turbine at 1 bar is then cooled at constant pressure in a condenser to 25°C. The rate of transfer from the condenser is 50 MW. Calculate the power output generated by the turbine (MW). Clearly state assumptions (if any) and reference state.
If the steam is now expanded from 10 bar and 500 degree Celsius to 0.04 bar...
If the steam is now expanded from 10 bar and 500 degree Celsius to 0.04 bar with isentropic efficiency of 90%, in what respects does the ideal gas assumption become invalid. Compare the ideal gas and steam table results for the exit temperature and the work output
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)
The mass flow rate of steam through an ideal Rankine turbine ( with an isentropic turbine...
The mass flow rate of steam through an ideal Rankine turbine ( with an isentropic turbine and an isentropic pump) is 30lbm/s. The water and or steam is at a pressure of 1000 psia throughout the boiler and superheater and exits the superheater at a temperature of 600 F. The condenser is at a pressure of 2 psia, and the water exits the condenser as a saturated liquid. Calculate the following. (a) the power output of the turbine (b) the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT