What has the development of the basic Rankine cycle carried out in Problems P3.9-P3.14 shown you about the effect of the salient parameters on the efficiency of the cycle? Evaluate the mean temperature of energy addition and rejection for the cycles.

P3.9

The condenser pressure of the turbine in P3.2 is reduced to 0.15 bar. Calculate the same parameters for this cycle as in the previous example. Why have the parameters improved so much? [28.97\%; 32.65\%; \(744.8 \mathrm{~kW} /(\mathrm{kg} / \mathrm{s})]\)