A two-stage insulated steam turbine working on a ?bleed cycle? is shown in the f

Question

A two-stage insulated steam turbine working on a ?bleed cycle? is shown in the figure. At the inlet of the 1st stage, steam enters at 30 bar and 400C and a volumetric flow rate of 85 m^3/min and exits the 1st stage as a saturated vapor at 20 bar. As shown in the figure, 30% (fraction ?y?) of the steam is bled away to provide heat for another process. The rest of the steam is expanded through a second stage turbine. Steam exits the second stage as a two-phase mixture at pressure 10 bar and volumetric flow rate of 104.15 m^3/min. Calculate a) the net power output from this two-stage turbine and b) quality of the steam at exit

Explanation / Answer

30% is by mass or by volume?

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