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+clc
+clear
+//input data
+R=0.5//Degree of reaction
+P0=2.2//Inlet pressure in bar
+T0=443//Inlet temperature in K
+N=2400//Rotor running speed in rpm
+Dm=0.5//Rotor mean diameter in m
+a1=36//Rotor inlet angle in degree
+a2=19//Stator exit angle in degree
+ns=0.88//Stage efficiency
+m=1//Mass flow rate of steam in kg/s
+
+//calculations
+b2=a1//Outlet angle of the rotor blade in degree
+b1=a2//Inlet angle of the rotor blade in degree
+U=(3.1415*Dm*N)/60//Mean blade speed in m/s
+Ca=(2*U*R)/(tand(b2)-tand(b1))//Axial velocity in m/s
+W=m*U*Ca*(tand(a1)+tand(a2))*10^-3//Power output in kW
+dh=W/ns//Stage enthalpy drop in kJ/kg
+
+//output
+printf('(a)Power output is %3.2f kW\n(b)Stage enthalpy drop is %3.2f kJ/kg',W,dh)