Binary Vapor Cycle
Figure 28.4(a)
Figure 28.4(b)
The binary cycle using mercury and water as the working fluids operates in the following manner. Refer to Figures 28. 4 (a) and (b). Saturated liquid mercury enters the boiler at state 7 and vaporizes at a temperature, 5500C. The saturated mercury vapor at state 9 enters the Turbine and leaves at state 10 at approx 2400C (7 kPa). The mercury vapor passes through the heat exchanger, transferring energy to water. At state 6 it becomes saturated liquid. Saturated mercury at state 7 enters the boiler.
Saturated water enters the heat exchanger at state 2 and comes out as saturated vapor at state 3' and then it enters the boiler for superheating. The superheated steam leaves the boiler at state 4. The expansion takes place in the turbine and the steam reaches state 5. This steam condenses and reaches state 1 (saturated liquid water). The saturated liquid is pumped through the heat exchanger.
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