11. A steam turbine is used to drive a nitrogen compressor. The states of steam and nitrogen entering the turbine and compressor are 600 psi, 700 F and 15 psi, 60 F respectively. The exit conditions of the steam are 3 psi, x=0.95 and the nitrogen conditions after the cooler are 1500 psi, 100F. The mass flow rates are 1000 lbm/hr and 150 lbm/hour for the steam and nitrogen respectively. The turbine delivers 16 hp to the compressor and the balance to an electric power generator. Heat transfer from the turbine is small and can be neglected. Ignore kinetic and potential energy. The problem is steady. Determine (a) the power delivered to the electrical generating unit, (b) the heat transfer from the nitrogen as it flows through the compressor and aftercooler. Aftercooler 2 3 Compress or Turbine Generator