ind all entalphies from h1 to h10 and also there actual also find hb and hb' thank u
Consider an actual cogeneration plant shown. Steam enters the turbine at 7 Mpaa and 500 deg C. Some steam (10% ms) is
extracted from the turbine at 500 kPaa for process heating, the remaining steam continues to expand to 5 kPaa. Steam is then
condensed at constant pressure and pumped to the boiler pressure of 7 Mpaa. At times of high demand for process heat, some
steam leaving the boiler (70% ms) is throttled to 500 kPaa and is routed to the process heater. The extraction fractions are
adjusted so that steam leaves the process heater as a saturated liquid at 500 kPaa. It is subsequently pumped to 7 Mpaa. The
mass flow rate of steam through the boiler is 15 kg/sec (ms). The turbine has a combined engine efficiency of 84%. Disregarding
any pressure drops and heat losses in the piping and pump and turbine have isentropic efficiencies of 88% (all stages),
determine the following when the process heater is operating at high demand: a. process heat Qp’ in KJ/sec with the steam
extractions indicated above. b. Electric power from the turbogen set in KW c. Maximum process heat that can be used (
KJ/sec), i.e., the turbine is not working. d. Utilization factor (%) when the process heater is operational with the steam
extractions indicated above.
Find all entalphies from h1 to h10 and also there actual also find hb and hb' thank u
Step by step
Solved in 4 steps with 1 images
