Steam turbine output power
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The mass rate of flow into a steam turbine is 4500 kg/h and the heat transfer from the turbine is 8.8 kW. The following data are known for the steam entering and leaving the turbine.
Inlet Exit
Pressure 20 bar 1 bar
Temperature 420 C
Quality 100%
Velocity 60 m/s 150 m/s
Elevation above datum 5 m 3 m
Determine the output power of the turbine.
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Solution Summary
The output power of a steam turbine is determined based on the mass rate of flow and heat transfer.
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Solution:
The useful power can be determined by applying the equation of energy:
(1)
where
steam (water) mass flow rate (kg/s)
inlet specific static enthalpy (and similarly for the outlet) (kJ/kg)
...
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