Steam at a pressure of 15 bar and dryness fraction 0.97 is discharged through a convergent-divergent nozzle to a back pressure of 0.2 bar. The mass flow rate is 9 kg/kWh. If the power developed is 220 kW determine. a. Throat pressure 6. nd if aach nozzle has a throat of rectangular
Steam at a pressure of 15 bar and dryness fraction 0.97 is discharged through a convergent-divergent nozzle to a back pressure of 0.2 bar. The mass flow rate is 9 kg/kWh. If the power developed is 220 kW determine. a. Throat pressure 6. nd if aach nozzle has a throat of rectangular
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6. Steam at a pressure of 15 bar and dryness fraction 0.97 is discharged through a convergent-divergent nozzle to a back pressure of 0.2 bar. The mass flow rate is 9 kg/kWh. If the power developed is 220 kW determine. a Throat pressure b. Number of nozzles required if each nozzle has a throat of rectangular cross section of 4mm X 8mm. ¢. If 12% of the overall isentropic enthalpy drop reheats the steam by friction in the divergent portion, find the cross section of the exit rectangle. 5 e e e oy (a0 e oy S oy
Transcribed Image Text:Steam at a pressure of 15 bar and dryness fraction 0.97 is discharged through a
convergent-divergent nozzle to a back pressure of 0.2 bar. The mass flow rate is
9 kg/kWh. If the power developed is 220 kW determine.
6.
a. Throat pressure
b. Number of nozzles required if each nozzle has a throat of rectangular [
cross section of 4mm X 8mm.
c. If 12% of the overall isentropic enthalpy drop reheats the steam by
friction in the divergent portion, find the cross section of the exit
rectangle.
250°C I exnands in the
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