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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /1187/CH3/EX3.2/2.sce | |
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initial commit / add all books
Diffstat (limited to '1187/CH3/EX3.2/2.sce')
| -rwxr-xr-x | 1187/CH3/EX3.2/2.sce | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/1187/CH3/EX3.2/2.sce b/1187/CH3/EX3.2/2.sce new file mode 100755 index 000000000..e834f47b4 --- /dev/null +++ b/1187/CH3/EX3.2/2.sce @@ -0,0 +1,34 @@ +clc
+
+u_A=1.35; // m/s
+d_A=0.225; // m
+d_B=0.150; // m
+d_C=0.150; // m
+d=5.6; //m
+friction=2.5; // kW
+power_req=12.7; // kW
+
+rho=1000; // kg/m^3
+rho_m=13560; // kg/m^3
+
+g=9.81; // m/s^2
+
+pC=35000; // Pa
+pA=rho_m*g*(-d_B);
+
+Area_A=%pi*d_A^2/4;
+Area_B=%pi*d_B^2/4;
+Area_C=%pi*d_C^2/4;
+
+u_B=u_A*(Area_A/Area_B);
+u_C=u_A*(Area_A/Area_C);
+
+// Energy_added_by_pump/time = (Mass/time)*((pC-pA)/rho+(u_C^2-u_A^2)/2+g*(zC-zA))
+
+Energy_added = Area_A*u_A*(pC-pA+rho/2*(u_C^2-u_A^2)+rho*g*d)/1000+friction;
+
+Efficiency=Energy_added/power_req*100;
+
+disp("Overall efficiency of the pump =")
+disp(Efficiency)
+disp("%")
\ No newline at end of file |