A. (5) determine the power output of the turbine in kW. B. (5) determine the rate of entropy production within turbine in kW/K. C. (5) suppose the compressor moves 5 kg/s of air, which exits at P4= 3bar. What is the isentropic compressor efficiency (n)? Report as a percent.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A steam turbine drives an air compressor-all power produced by the turbine is sent to the compressor; there is no
extra power produced. Steady-state operating data are provided on the figure. Assume the ideal gas model for air, and
ignore stray heat transfer and kinetic and potential energy effects.
Steam 1
STATE DATA for SYSTEM
P, = 30 bar
T, = 600°C
m = 1.5 kg/s
n = 80%
P2 = 3 bar
P3 = 1 bar
T3 = 27°C
Turbine
Compressor
%3D
2
Air
Transcribed Image Text:A steam turbine drives an air compressor-all power produced by the turbine is sent to the compressor; there is no extra power produced. Steady-state operating data are provided on the figure. Assume the ideal gas model for air, and ignore stray heat transfer and kinetic and potential energy effects. Steam 1 STATE DATA for SYSTEM P, = 30 bar T, = 600°C m = 1.5 kg/s n = 80% P2 = 3 bar P3 = 1 bar T3 = 27°C Turbine Compressor %3D 2 Air
Using the state data provided,
A. (5) determine the power output of the turbine in kW.
B. (5) determine the rate of entropy production within turbine in kW/K.
C. (5) suppose the compressor moves 5 kg/s of air, which exits at P4= 3bar. What is the isentropic compressor
efficiency (nc? Report as a percent.
D. (5) suppose the compressor needs to move 1 kg/s of air; what is the theoretical maximum outlet pressure at 4?
Report P4 in bar.
If you are unable to find an answer to Part A, assume the turbine output power is 1000kW.
Parts C and D are independent-you do not need any info from C for D and vice versa.
Transcribed Image Text:Using the state data provided, A. (5) determine the power output of the turbine in kW. B. (5) determine the rate of entropy production within turbine in kW/K. C. (5) suppose the compressor moves 5 kg/s of air, which exits at P4= 3bar. What is the isentropic compressor efficiency (nc? Report as a percent. D. (5) suppose the compressor needs to move 1 kg/s of air; what is the theoretical maximum outlet pressure at 4? Report P4 in bar. If you are unable to find an answer to Part A, assume the turbine output power is 1000kW. Parts C and D are independent-you do not need any info from C for D and vice versa.
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