Water is the working fluid in a cogeneration cycle. Steam generator provides 280 kg/s of steam at 9 MPa, 500 o C, of which 110 kg/s is extracted between the first and second stages at 1.5 MPa and diverted to a process heating load. Condensate returns from the process heating load at 1 MPa, 120 o C and is mixed with the liquid exiting the lower pressure pump at 1 MPa. The entire flow is then pumped to the steam generator pressure. Saturated liquid at 8 kPa leaves the condenser. The turbine stages and pumps operate with isentropic efficiencies of 90% and 80%, respectively. Determine
(a) The net heat transfer rate to the working fluid passing through the steam generator,
(b) The net power developed and
(c) The heating load.