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+// scilab Code Exa 18.42 Calculation for Tidal Power Plant

+

+T=50e6; // capacity of basin in cubic meters of sea water

+N=60; // Speed for the model in RPM

+NS=3; //specific speed

+H=9.8; // net head for the model in m

+n_o=0.78; // Assuming efficiency

+rho=1000; // density in kg/m3

+g=9.81; // gravitational acceleration in m/s2

+n(1)=5; // number of turbines

+n(2)=10;

+omega=%pi*2*N/60;

+

+P=(NS^2)*(H^(5/2))*(549.016^2)/(omega^2);

+disp("MW",P*1e-6,"(a)the power for the turbines is")

+Q=P/(n_o*rho*g*H);  // discharge in m3/s

+disp("m3/s",Q,"(b)the discharge rate for the turbines is")

+disp("(c)")

+for i=1:2

+    disp(n(i),"when number of turbines are:")

+    t=T/(n(i)*Q*3600);

+disp("hours",t,"duration of operation is")

+end