Water vapor at 10 MPa, 700°C enters a turbine operating at steady state with a volumetric flow rate of 0.2 m3/s and exits at 0.1 bar and a quality of 92%. Stray heat transfer and kinetic and potential energy effects are negligible. Determine for the turbine: (a) the mass flow rate, in kg/s. (b) the power developed by the turbine, in MW. (c) the rate at which entropy is produced, in kW/K. (d) the percent isentropic turbine efficiency.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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100%
T
S
°C
m'/kg kJ/kg kJ/kg
kJ/kg • K
p= 100 bar = 10.0 MPa
(Tsat = 311.06°C)
%3D
Sat.
0.01803
2544.4
2724.7
5.6141
320
0.01925
2588.8
2781.3
5.7103
360
0.02331
2729.1
2962.1
6.0060
400
0.02641
2832.4
3096.5
6.2120
440
0.02911
2922.1
3213.2
6.3805
480
0.03160
3005.4
3321.4
6.5282
520
0.03394
3085.6
3425.1
6.6622
560
0.03619
3164.1
3526.0
6.7864
600
0.03837
3241.7
3625.3
6.9029
640
0.04048
3318.9
3723.7
7.0131
700
0.04358
3434.7
3870.5
7.1687
740
0.04560
3512.1
3968.1
7.2670
Transcribed Image Text:T S °C m'/kg kJ/kg kJ/kg kJ/kg • K p= 100 bar = 10.0 MPa (Tsat = 311.06°C) %3D Sat. 0.01803 2544.4 2724.7 5.6141 320 0.01925 2588.8 2781.3 5.7103 360 0.02331 2729.1 2962.1 6.0060 400 0.02641 2832.4 3096.5 6.2120 440 0.02911 2922.1 3213.2 6.3805 480 0.03160 3005.4 3321.4 6.5282 520 0.03394 3085.6 3425.1 6.6622 560 0.03619 3164.1 3526.0 6.7864 600 0.03837 3241.7 3625.3 6.9029 640 0.04048 3318.9 3723.7 7.0131 700 0.04358 3434.7 3870.5 7.1687 740 0.04560 3512.1 3968.1 7.2670
Water vapor at 10 MPa, 700°C enters a turbine operating at steady state with a volumetric flow rate of 0.2 m3/s and
exits at 0.1 bar and a quality of 92%. Stray heat transfer and kinetic and potential energy effects are negligible.
Determine for the turbine:
(a) the mass flow rate, in kg/s.
(b) the power developed by the turbine, in MW.
(c) the rate at which entropy is produced, in kW/K.
(d) the percent isentropic turbine efficiency.
Transcribed Image Text:Water vapor at 10 MPa, 700°C enters a turbine operating at steady state with a volumetric flow rate of 0.2 m3/s and exits at 0.1 bar and a quality of 92%. Stray heat transfer and kinetic and potential energy effects are negligible. Determine for the turbine: (a) the mass flow rate, in kg/s. (b) the power developed by the turbine, in MW. (c) the rate at which entropy is produced, in kW/K. (d) the percent isentropic turbine efficiency.
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