1. 2. 3. a) b) Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boi

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1 2 3 A B Consider A Steam Power Plant That Operates On The Ideal Reheat Rankine Cycle The Plant Maintains The Boi 1 (131.54 KiB) Viewed 49 times

1. 2. 3. a) b) Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 17.5 MPa, the reheater at 2 MPa, and the condenser at 50 kPa. The temperature is 550C at the entrance of the high pressure turbine, and 300C at the entrance of the low-pressure turbine. Determine the thermal efficiency of this system. During a regeneration process, some steam is extracted from the turbine and is used to heat the liquid water leaving the pump. This does not seem like a smart thing to do since the extracted steam could produce some more work in the turbine. How do you justify this action? Steam is generated in the boiler of a cogeneration plant at 10 MPa and 450°C at a steady rate of 5 kg/s. In normal operation, steam expands in a turbine to a pressure of 0.5 MPa and is then routed to the process heater, where it supplies the process heat. Steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. In this mode, no steam passes through the condenser, which operates at 20 kPa. Determine the power produced and the rate at which process heat is supplied in this mode. Determine the power produced and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure.