Steam and ammonia are the working fluids in a binary vapor power cycle consisting of two ideal Rankine cycles. The heat rejected from the steam cycle is provided to the ammonia cycle. In steam cycle, steam at 6 MPa, 650C enters the turbine and exits at 60C. Saturated liquid at 60C enters the pump and is pumped to the steam generator pressure. Saturated vapor of ammonia enters the turbine at 50C and exits at 1 MPa which enters the condenser and condenses to saturated liquid. The saturated liquid is then pumped through the heat exchanger. The power output of the binary cycle is 25 MW. Determine (a) the mass flow rates of steam and ammonia, (b) the power outputs of the steam and ammonia turbines, (c) the rate of heat addition to the cycle and (d) the thermal efficiency.
Steam and ammonia are the working fluids in a binary vapor power cycle consisting of two ideal Rankine cycles. The heat rejected from the steam cycle is provided to the ammonia cycle. In steam cycle, steam at 6 MPa, 650C enters the turbine and exits at 60C. Saturated liquid at 60C enters the pump and is pumped to the steam generator pressure. Saturated vapor of ammonia enters the turbine at 50C and exits at 1 MPa which enters the condenser and condenses to saturated liquid. The saturated liquid is then pumped through the heat exchanger. The power output of the binary cycle is 25 MW. Determine (a) the mass flow rates of steam and ammonia, (b) the power outputs of the steam and ammonia turbines, (c) the rate of heat addition to the cycle and (d) the thermal efficiency.
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