Question #128845

A turbine operating under steady-flow conditions receives steam at the following state: pressure 13.8 bar, specific volume 0.143 m3/kg, specific internal energy 2590 kJ/kg, velocity 30 m/s. The state of the steam leaving the turbine is as follows: pressure 0.35bar,specific volume 4.37 m3/kg, specific internal energy 2360 kJ/kg, velocity 90 m/s Heat is rejected to the surroundings at the rate of 0.25 kW and the rate of steam flow through the turbine is 0.38 kg/s. Calculate the power developed by the turbine.

Expert's answer

From the question the value of :

- velocity is in m/s
- the mass flow is in kg/s
- pressure in pa
- Q is in J/s
- internal energy in j/k
- specific volume m
^{3}/kg

the unit of W will be J/s or W

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