CHE330 Study Guide - Quiz Guide: Rankine Cycle, Thermal Efficiency, Ideal Gas
20 Mar 2015
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7: consider the basic cycle for a steam power plant. The turbine operates adiabatically with inlet steam at 6500 kpa and 525 c, and the exhaust steam enters the condenser at 100 c with a quality of 0. 98. Saturated liquid water leaves the condenser and is pumped to the boiler. Calculate the thermal efficiency of the cycle and the quality of the exhaust steam from the turbine for turbine-inlet temperatures of 400, 500, and 600 c, respectively. What can you say about the effect of superheating on the power production efficiency of the cycle: (optional) steam enters the turbine of a power plant operating on the rankine cycle at 450 c and exhausts at 20 kpa. Calculate the thermal efficiency of the cycle and the quality of the exhaust steam from the turbine for boiler pressures of 4000, 6000, and 8000 kpa, respectively. The pressure and temperature at the beginning of the compression step are.
