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Q: In one type of nuclear power plant, heat is transferred in the nuclear reactor to liquid sodium. The liquid sodium is then pumped through a heat exchanger where heat is transferred to boiling water. Saturated vapor steam at 700 lbf/in.2 exits this heat exchanger and is then superheated to 1100 F in an external gas-fired super heater. The steam enters the turbine, which has one (open-type) feedwater extraction at 60 lbf/in 2. The isentropic turbine efficiency is 87%, and the condenser pressure is 1 lbf/in.2. Determine the heat transfer in the reactor and in the super heater to produce a net power output of 1000 Btu/s.