eveloped by the high-pressure turbine (HPT) is used to 2. The low pressure turbine (LPT) provides the net pov rom 100 kPa, 298 K to 1.2 MPa in a two-stage com

Elements Of Electromagnetics
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A two-shaft gas turbine power plant is shown in Figure Q2 (b). All the power
developed by the high-pressure turbine (HPT) is used to run the compressors C1 and
C2. The low pressure turbine (LPT) provides the net power output. Air is compressed
from 100 kPa, 298 K to 1.2 MPa in a two-stage compressor with intercooling (I)
between stages. The intercooler pressure is 500 kPa. The air is cooled back to 298 K
in the intercooler before entering the second compressor (C2). Each compressor and
the HPT operate isentropically. The intercooler and reheater (R) each operate at 500
kPa. The reheater brings the temperature entering the LPT back to the temperature at
the HPT inlet. The isentropic efficiency of the low pressure turbine (LPT) is 90%.
Determine;
(i) the temperature at the exit of high pressure turbine;
(ii) the thermal efficiency; and
(iii) back work ratio
Transcribed Image Text:A two-shaft gas turbine power plant is shown in Figure Q2 (b). All the power developed by the high-pressure turbine (HPT) is used to run the compressors C1 and C2. The low pressure turbine (LPT) provides the net power output. Air is compressed from 100 kPa, 298 K to 1.2 MPa in a two-stage compressor with intercooling (I) between stages. The intercooler pressure is 500 kPa. The air is cooled back to 298 K in the intercooler before entering the second compressor (C2). Each compressor and the HPT operate isentropically. The intercooler and reheater (R) each operate at 500 kPa. The reheater brings the temperature entering the LPT back to the temperature at the HPT inlet. The isentropic efficiency of the low pressure turbine (LPT) is 90%. Determine; (i) the temperature at the exit of high pressure turbine; (ii) the thermal efficiency; and (iii) back work ratio
CC
-3
- 5
C1
C2
HPT
R
LPT
Figure Q2 (b)
2.
Transcribed Image Text:CC -3 - 5 C1 C2 HPT R LPT Figure Q2 (b) 2.
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