steam power plant numerical

The following data pertaining to a steam power plant are given for each state corresponding to Fig. shown below. Determine heat transfer in each process and turbine work.

Process 1—2 for boiler:

for boiler system, w = 0, Z1 — Z0

Process 2 – 3 for Turbine Work:

w = (h2 — h3) = 3000 — 2300 = 700 kJ/kg

Process 3—4 for heat exchanged system:      

Process 4—1 for compressor:

Q = (h1 — h4) + w

                                       = (3020—200) + 4

                                       = 2820 + 4 = 2824 kJ/kg

= — 20 + 0 — 2100 + 2824

                                       =724kJ/kg

          W.D. for turbine = 700 kJ/kg.