10-99 A textile plant requires 4 kg/s of saturatcd steam at 2 MPa, which is extracted from the turbine of a cogenera- tion plant. Steam enters the turbine at 8 MPa and 500°C at a rate of 11 kg/s and leaves at 20 kPa. The extracted steam leaves the process heater as a saturated liquid and mixes with the feedwater at constant pressure. The mixture is pumped to the boiler pressure. Assuming an isentropic efficiency of 88 percent for both the turbine and the pumps, deter- mine (a) the rate of process heat supply, (b) the net power output, and (c) the utilization factor of the plant. Answers: (a) 8.56 MW, (b) 8.60 MW, (c) 53.8 percent Turbine Boiler 8) Process heater Condenser 3) Pump II Pump I FIGURE P10-99

10-99 A textile plant requires 4 kg/s of saturatcd steam at 2 MPa, which is extracted from the turbine of a cogenera- tion plant. Steam enters the turbine at 8 MPa and 500°C at a rate of 11 kg/s and leaves at 20 kPa. The extracted steam leaves the process heater as a saturated liquid and mixes with the feedwater at constant pressure. The mixture is pumped to the boiler pressure. Assuming an isentropic efficiency of 88 percent for both the turbine and the pumps, deter- mine (a) the rate of process heat supply, (b) the net power output, and (c) the utilization factor of the plant. Answers: (a) 8.56 MW, (b) 8.60 MW, (c) 53.8 percent Turbine Boiler 8) Process heater Condenser 3) Pump II Pump I FIGURE P10-99

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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inlet of the high-pressure turbine.
the
10-99 A tcxtile plant requires 4 kg/s of saturatcd steam at
2 MPa, which is extracted from the turbinc of a cogenera-
tion plant. Steam enters the turbine at 8 MPa and 500°C at
a rate of 11 kg/s and leaves at 20 kPa. The extracted steam
leaves the process heater as a saturated liquid and mixes with
the feedwater at constant pressure. The mixture is pumped
to the boiler pressure. Assuming an isentropic efficiency
of 88 percent for both the turbine and the pumps, deter-
mine (a) the rate of process heat supply, (b) the net power
output, and (c) the utilization factor of the plant. Answers:
(a) 8.56 MW, (b) 8.60 MW, (c) 53.8 percent
Turbine
F
Boiler
Process
heater
Condenser
(3)
Pump II
Pump I
FIGURE P10-99

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