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Q3. Steam enters a turbine at a pressure of 50 bar and a temperature of 440°C, and leaves at a pressure of 0.12 bar with a dryness fraction of 0.92. It is then fully condensed without undercooling, and the condensate passes through two direct mixing feed heaters before being fed to the boiler. The high pressure bled steam is at a pressure of 15 bar and a temperature of 280°C, and the low pressure bled steam is at a pressure of 1.5 bar and a temperature of 120°C. The feed water leaves each feed heater at the saturation temperature of the bled steam.

Calculate EACH of the following:

(a) the mass of bled steam supplied to each feed heater, per kg of steam entering the turbine

(b) the work output of the turbine, per kg of steam entering the turbine.