Which is a renewable resource?A.gold B.copper C.timber D.natural gas
1 answer:
You might be interested in
Explanation:
We select the enthalpy of steam at state 1 at and 8.0 MPa from the steam tables as follows.
= 3138 kJ/kg
Also, we select the enthalpy of steam at state 2 at 0.5 MPa from the steam tables as follows.
= 2748.6 kJ/kg
At state 3 also, from the steam tables at state 3 at 0.1 MPa.
= 2675.1 kJ/kg
Hence, calculate the mass flow rate at state 3 as follows.
= 1000 kg/h - 300 kg/h
= 700 kg/h
Now, we will calculate the power output of the turbine as follows.
= 1000 kg/h (3138 kJ/kg - 2748.6 kJ/kg) + 700 kg/h (2784.6 kJ/kg - 2675.1 kJ/kg)
= 440850 kJ/h
It is known that 1 kJ/h = 0.000278 kW.
Therefore,
= 122.56 kW
Thus, we can conclude that the power output of the turbine is 122.56 kW.