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diff --git a/1775/CH4/EX4.13/Chapter4_Example13.sce b/1775/CH4/EX4.13/Chapter4_Example13.sce new file mode 100755 index 000000000..0266e4094 --- /dev/null +++ b/1775/CH4/EX4.13/Chapter4_Example13.sce @@ -0,0 +1,30 @@ +//Chapter-4, Illustration 13, Page 202
+//Title: Steam Nozzles and Steam Turbines
+//=============================================================================
+clc
+clear
+
+//INPUT DATA
+C1=1000;//Steam velocity in m/s
+a1=20;//Nozzle angle in degrees
+U=400;//Mean blade speed in m/s
+m=0.75;//Mass flow rate of steam in kg/s
+b1=33;//Blade angle at inlet from the velocity triangle in degrees
+b2=b1;//Blade angle at exit from the velocity triangle in degrees
+Cx=1120;//Change in whirl velocity from the velocity triangle in m/s
+Ca=0;//Change in axial velocity from the velocity triangle in m/s
+
+//CALCULATIONS
+Fx=m*Cx;//Tangential force on blades in N
+Fy=m*Ca;//Axial thrust in N
+W=(m*Cx*U)/1000;//Diagram power in kW
+ndia=((2*U*Cx)/(C1^2))*100;//Diagram efficiency
+
+//OUTPUT
+mprintf('Blade angles are %3.0f degrees,%3.0f degrees \n Tangential force on blades is %3.0f N \n Axial thrust is %3.0f \n Diagram power is %3.0f kW \n Diagram efficiency %3.1f percent',b1,b2,Fx,Fy,W,ndia)
+
+
+
+
+
+//==============================END OF PROGRAM=================================
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