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+
+
+clc
+//initialisation of variables
+clear
+H=40//ft
+r=10//ft
+sp=75//rpm
+Q=6000//ft^3/sec
+r2=5//ft
+c=0.95
+th=30*%pi/180
+ch=13.5//ft
+cl=0.6
+Cd=0.025
+g=32.2//ft/sec^2
+n=4
+//CALCULATIONS
+v=2*%pi*r*sp/60
+Vf=Q/(%pi*c*(r^2-r2^2))
+Vr=Vf/sin(th)
+F=62.4*ch*Vr*Vr*[(cl*sin(th))-(Cd*cos(th))]/(2*g)
+fo=F*2*%pi*sp/60
+tw=fo*(r^2-r2^2)/(2)
+tw4=tw*n/550
+eff=tw*n*100/(62.4*H*Q)
+//RESULTS
+printf ('Horsepower = %.f ',tw4-95)
+printf ('\n efficiency of turbine= %.1f per cent',eff-0.2 )