A single-stage axial flow gas turbine is to be tested in a "cold rig" so as to simulate the design-point operation. The two sets of operating conditions are: 1. Design-point operation of turbine Stage-inlet total pressure, P01 = 11 bar Stage-inlet total temperature, T01 = 1400 K Stage-exit total pressure, Po2 = 5.0 bar Speed of rotation, N = 55,000 rpm Stage efficiency, nt = 87% Mass flow rate m = 3:5 kg/s 2. Cold-rig operation Stage-inlet total pressure, P01(cr) = 2:5 bar Stage-inlet total temperature, T01(cr) = 365 K For both sets of conditions, assume that the axial velocity across the stage remains constant. Determine a. the stage-exit total temperature To2(cr);
A single-stage axial flow gas turbine is to be tested in a "cold rig" so as to simulate the design-point operation. The two sets of operating conditions are: 1. Design-point operation of turbine Stage-inlet total pressure, P01 = 11 bar Stage-inlet total temperature, T01 = 1400 K Stage-exit total pressure, Po2 = 5.0 bar Speed of rotation, N = 55,000 rpm Stage efficiency, nt = 87% Mass flow rate m = 3:5 kg/s 2. Cold-rig operation Stage-inlet total pressure, P01(cr) = 2:5 bar Stage-inlet total temperature, T01(cr) = 365 K For both sets of conditions, assume that the axial velocity across the stage remains constant. Determine a. the stage-exit total temperature To2(cr);
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Transcribed Image Text:A single-stage
axial flow gas turbine is to be tested
in a "cold rig" so as to simulate the design-point
operation. The two sets of operating conditions
are:
1. Design-point operation of turbine
Stage-inlet total pressure, P0₁ = 11 bar
Stage-inlet total temperature, T01 = 1400 K
Stage-exit total pressure, Po2 = 5.0 bar
Speed of rotation, N = 55,000 rpm
Stage efficiency, nt = 87%
Mass flow rate m = 3:5 kg/s
2. Cold-rig operation
Stage-inlet total pressure, P01(cr) = 2:5 bar
Stage-inlet total temperature, T01(cr) = 365 K
For both sets of conditions, assume that the axial
velocity across the stage remains constant.
Determine
a. the stage-exit total temperature
To2(cr);
b. the power output in the cold rig.
Assume that the average specific heat ratio for
both operating conditions is given by y = 1.36.
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