Question

A nitrogen line, 300 K and 0.5 MPa, , is connected to a turbine that exhausts to a closed initially empty tank of 50 m3. The turbine operates to a tank pressure of 0.5 MPa, at which point the temperature is 250 K. Assuming the entire process is adiabatic, determine the turbine work.

Answer 1

C.V. turbine & tank ⇒ Transient process

Conservation of mass Eq mi = m2 ⇒ m

We could with good accuracy have solved using ideal gas