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Diffstat (limited to '2223/CH12/EX12.2/Ex12_2.sce')
| -rwxr-xr-x | 2223/CH12/EX12.2/Ex12_2.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/2223/CH12/EX12.2/Ex12_2.sce b/2223/CH12/EX12.2/Ex12_2.sce new file mode 100755 index 000000000..e4b3203a2 --- /dev/null +++ b/2223/CH12/EX12.2/Ex12_2.sce @@ -0,0 +1,16 @@ +// scilab Code Exa 12.2 Calculation on a centrifugal air compressor
+T01=288; // in Kelvin
+p01=1.02; // Initial Pressure in bar
+dh=0.10; // hub diameter in m
+dt=0.25; // tip diameter in m
+m=5; // in kg/s
+gamma=1.4;
+n=(gamma-1)/gamma;
+N=7.2e3; // rotor Speed in RPM
+d2=0.45; // Impeller diameter in m
+cp=1005; // Specific Heat at Constant Pressure in J/(kgK)
+u2=%pi*d2*N/60;
+pr0=((1+(u2^2/(cp*T01)))^(1/n));
+disp(pr0,"pressure ratio developed pr0=")
+w=u2^2;
+disp("kW/(kg/s)",w*1e-3,"Power required to drive the compressor P=")
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