Steam enters the first-stage turbine shown in Fig. P4.50

Chapter 4, Problem 4.50

(choose chapter or problem)

Steam enters the first-stage turbine shown in Fig. P4.50 at 40 bar and \(500^{\circ} \mathrm{C}\) with a volumetric flow rate of \(90 \mathrm{~m}^{3} / \mathrm{min}\). Steam exits the turbine at 20 bar and \(400^{\circ} \mathrm{C}\). The steam is then reheated at constant pressure to \(500^{\circ} \mathrm{C}\) before entering the second-stage turbine. Steam leaves the second stage as saturated vapor at 0.6 bar. For operation at steady state, and ignoring stray heat transfer and kinetic and potential energy effects, determine the

(a) mass flow rate of the steam, in kg/h.

(b) total power produced by the two stages of the turbine, in kW.

(c) rate of heat transfer to the steam flowing through the reheater, in kW.

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