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Two staged steam turbines are arranged as shown in the diagram, with a "reheater" in between the two stages. Steam enters the first-stage turbine at 4 MPa and 500°C with a volumetric flow rate of 90 m3/min. Steam exits the turbine at 2 MPa and 400°C. The steam is then reheated at constant pressure to 500°C before entering the second-stage turbine. Steam leaves the second stage as saturated vapor at 60 kPa. For steady-state operation, and ignoring heat transfer for the two turbine stages and any effects of kinetic and potential energy, determine the following:
(a) mass flow rate of the steam (kg/h)
(b) total combined power produced by the two turbine stages (kW)
(c) rate of heat transfer to the steam in the reheater (kW)
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