# Steam enters the first-stage turbine shown in the figure at 40 bar and 4500C with a mass flow rate of 40,000 kg/hr. Steam exits the first-stage turbineat 20 bar and 400°C. The steam is then reheated at constant pressure to 500°C before entering the second-stage turbine. Steam leaves the secondstage as saturated vapor at 0.6 bar. Assume steady state operation and ignore stray heat transfer and kinetic and potential energy effects.SaturatedSteamvaporP1 40 barTутP4= 0.6 barPowerTurbineTurbineP2 20 barT2 400°CP3 20 barT3 500°CReheaterQrehealerDetermine the volumetric flow rate of the steam at the inlet to the first-stage turbine, in m/min, the rate of heat transfer to the steam flowing throughthe reheater, in kW, and the total power produced by the two stages of the turbine, in kW.

Question
Step 1

Draw the temperature versus entropy curve for the expansion process of steam through two turbines via reheater as:

Step 2

Refer to the graph and observe that 1-2 is the expansion process through the first turbine. Refer to the standard steam table and recall the values of specific enthalpy and specific volume of steam at 450 °C and 40 bar as:

Step 3

Now, process 2-3 is the reheating process of steam at constant pressure, which is 20 bar. Refer to the standard steam table and recall the...

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