An ideal reheat Rankine Cycle operates between the pressure limits of 10kPa and 8 MPa, with reheat being done at 4MPa. The temperature of steam at the inlets of both turbines is 5000C and the enthalpy of steam is 3185 kJ/kg at the exit of the high pressure turbine and 2247 kJ/kg at the exit of low pressure turbine. The enthalpy of water at the exit from the pump is 191kJ/kg. Use the following table for relevant data.
|
Superheated steam temperature (0C)
|
Pressure (MPa)
|
V
(m3/kg)
|
h
(kJ/kg)
|
s
(kJ/kgK)
|
|
500
|
4
|
0.08644
|
3446
|
7.0922
|
|
500
|
8
|
0.04177
|
3399
|
6.7266
|
Disregarding the pump work, the cycle efficiency (in percentage is __________