A regenerative vapor power cycle has two turbine stages with steam entering the first turbine stage at 8 MPa, 550oC and expanding to 700 kPa, where some of the steam is extracted and diverted to the open feed water heater operating at 700 kPa. The remaining steam expands through the second turbine stage to the condenser at a pressure of 7 kPa. Saturated liquid exits the open feed water heater at 700 kPa. Each turbine stage has an isentropic efficiency of 88% and each pump has an isentropic efficiency of 80%. Determine (a) The thermal efficiency (ηth) of the cycle,
(b) The net work developed per kilogram of steam (wnet) and
(c) The fraction of flow extracted where bleeding occurs.