4.

Question 4

Determine the back work ratio given the following fictional specific enthalpies used in the previous problem: h_1 = 300 kJ/kg, h_2 = 580 kJ/kg, h_3 = 1460 kJ/kg, h_4 =750 kJ/kg. (Assume that state 1 is the entrance to the compressor, state two is between the compressor and the burner, state 3 is between the burner and the turbine and state 4 is the exit of the turbine)

1 point

**39%**

67%

55%

2.5%