Compare the thermal efficiency and turbine-exit quality (temperature if superheated) at the condenser pressure for a simple Rankine cycle and the reheat cycle when the boiler pressure is 5 MPa, the boiler exit temperature is 500°C, and the condenser pressure is 20 kPa. The reheat takes place at 0.5 MPa and the steam leaves the reheater at 500°C. (Enthalpies are in KJ/kg.) Without the reheater, the enthalpy at the turbine exhaust is: Without the reheater, the quality at the turbine exhaust is: The pump work is: The enthalpy leaving the reheater is: The thermal efficiency is:

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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Compare the thermal efficiency and turbine-exit quality (temperature if superheated) at the condenser pressure for a simple Rankine cycle and the reheat cycle when the boiler pressure is 5 MPa, the boiler exit temperature is 500°C, and the condenser pressure is 20 kPa. The reheat takes place at 0.5 MPa and the steam leaves the reheater at 500°C. (Enthalpies are in KJ/kg.)

  1. Without the reheater, the enthalpy at the turbine exhaust is:
  2. Without the reheater, the quality at the turbine exhaust is:
  3. The pump work is:
  4. The enthalpy leaving the reheater is:
  5. The thermal efficiency is:
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