The remaining wet steam exits the turbine at11.5 kPa with a quality of 0.88. Determine theminimum pipe diameters required to restrict themaximum inlet velocity to 50 m/s, the maximumextraction velocities each to 75 m/s, and the turbineoutlet velocity to 130 m/s.Consider a steam turbine in which steam enters at10.45 MPa and 780 K with a flow rate of 38.739 kg/s.As shown in the sketch, a portion of the steam isextracted from the turbine after partial expansion atthree different locations. The extracted steam is thenled to various heat exchangers. The mass flow ratesand the temperatures and pressures at each extractionpoint are given in the following table:InletSteam turbineExtractionLocationrin(kg/s)P (MPa)T(K)1 234.3433.0546204.3450.332482Extraction3.2.8710.136x= 0.949locations Exit123

To given thatpressure at inlet,(Pi)=10.45MPaTemperature at inlet,(Ti)=780kMass flow…

Consider a steam turbine in which steam enters at outlet velocity to 130 m/s. 10.45 MPa and 780 K with a flow rate of 38.739 kg/s. As shown in the sketch, a portion of the steam is xtracted from the turbine after partial expansion at three different locations. The extracted steam is then ed to various heat exchangers. The mass flow rates and the temperatures and pressures at each extraction point are given in the following table: Inlet Steam turbine Extraction Location ni(kg's) P(MPa) T(K)

Consider a steam turbine in which steam enters at outlet velocity to 130 m/s. 10.45 MPa and 780 K with a flow rate of 38.739 kg/s. As shown in the sketch, a portion of the steam is xtracted from the turbine after partial expansion at three different locations. The extracted steam is then ed to various heat exchangers. The mass flow rates and the temperatures and pressures at each extraction point are given in the following table: Inlet Steam turbine Extraction Location ni(kg's) P(MPa) T(K)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

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The remaining wet steam exits the turbine at
11.5 kPa with a quality of 0.88. Determine the
minimum pipe diameters required to restrict the
maximum inlet velocity to 50 m/s, the maximum
extraction velocities each to 75 m/s, and the turbine
outlet velocity to 130 m/s.
Consider a steam turbine in which steam enters at
10.45 MPa and 780 K with a flow rate of 38.739 kg/s.
As shown in the sketch, a portion of the steam is
extracted from the turbine after partial expansion at
three different locations. The extracted steam is then
led to various heat exchangers. The mass flow rates
and the temperatures and pressures at each extraction
point are given in the following table:
Inlet
Steam turbine
Extraction
Location
rin(kg/s)
P (MPa)
T(K)
1 23
4.343
3.054
620
4.345
0.332
482
Extraction
3.
2.871
0.136
x= 0.949
locations Exit
123

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