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1. A power plant operates based on the flow diagram. Assume that the pipes, boiler, and superheater are well insulated and that friction can

  

1. A power plant operates based on the flow diagram. Assume that the pipes, boiler, and superheater are well insulated and that friction can be neglected. Note: the quality of steam is the weight fraction that is vapor in a mixture of vapor and liquid. Determine in BTU Ibm steam : A. The heat transferred to/from the boiler. (5 points) B. The heat transferred to/from the super heater. (5 points) C. The heat transferred to/from the condenser. (5 points) D. The shaft work transferred to/from the turbine. (5 points) E. The shaft work transferred to/from the liquid pumps. (5 points) 40 psia 96.5% quality Boiler Sat'd 250 psia steam Superheater 250 psia 550 F Turbine 250 psia condenser p < 1 atm Q=0 65 F 250 psia pump water 65 F, 1 atm abs Q=0 65 F, sat'd liquid pump

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