A steam power plant for an automotive vehicle is proposed as shown in Fig 5.36. The boiler has a volume of 50 L and initially contains 90% liquid and 10% vapor by volume at 100 kPa. The burner is now turned on, and when the pressure in the boiler reaches 700 kPa, the pressure-regulating valve holds the boiler pressure constant at this value, and saturated vapor at this pressure passes to the turbine. Saturated vapor steam at 100 kPa exits the turbine and is discharged into the atmosphere. When the liquid in the boiler is depleted, the burner shuts off automatically. Find the total work output of the turbine and the total heat transfer for one charge of the boiler

 

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Pressure regulator Vapor Insulated turbine Work Liquid H20 Boiler To atm FIGURE 5.36. Sketch for Problem 5.64. Pressure regulator Vapor Insulated turbine Work Liquid H20 Boiler To atm FIGURE 5.36. Sketch for Problem 5.64.