Question

Steam is the working fluid in the vapor power cycle with reheat shown in the figure...

Steam is the working fluid in the vapor power cycle with reheat shown in the figure below with operational data. The mass flow rate is 3.7 kg/s, and the turbines and pump operate adiabatically. Steam exits both turbine 1 and turbine 2 as saturated vapor.





State

p (bar)

h (kJ/kg)

x

1

160

3353

--

2

15

2792

1.0

3

15

3169

--

4

1.5

2693

1.0

5

1.5

467.3

0

6

160

486.7

--


If the reheat pressure is 15 bar, determine:

(a) the power developed by the cycle, in kW.

(b) the percent cycle thermal efficiency.

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