5. A steam turbine is supplied with steam at 40 bar and 450°C, and exhausts at 0.035 bar. Neglecting the feed pump term, find the ideal Rankine cycle efficiency of the plant, and compare it with the ideal efficiency that could be obtained if regenerative feed heating were employed. Assume the use of open heaters and (a) one bleeding point at 3 bar, (b) three bleeding points at 15,3, and 0.5 bar. [0.391, (a) (0.173 kg) 0.415, (b) (0.114, 0.083, 0.080 kg) 0.429]