A steam power plant operates on the Rankine cycle with reheat, using the specified conditions below. Using stream numbering from Fig. 5.3, for each of the options below, determine

(a) The work output of each turbine per kg of steam;

(b) The work input of the feedwater pump per kg of circulated water;

(c) The flowrate of steam required;

(d) The heat input required in the boiler/superheater and reheater;

(e) The thermal efficiency.

Transcribed Image Text:

Option i ii iii iv V T3 (C) 450 400 400 500 600 P3 (MPa) 5 5 4 4 4 P4(MPa) T5(C) 0.4 0.6 0.5 0.8 1.2 400 450 500 500 600 P6(MPa) 0.01 0.01 0.01 0.01 0.01 nturbines 0.8 0.8 0.9 0.85 0.85 npump 0.75 0.75 0.95 0.8 0.8 Plant Capacity 80 MW 80 MW 75 MW 80 MW 80 MW