initial commit / add all books

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diff --git a/2223/CH18/EX18.41/Ex18_41.sav b/2223/CH18/EX18.41/Ex18_41.sav
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diff --git a/2223/CH18/EX18.41/Ex18_41.sce b/2223/CH18/EX18.41/Ex18_41.sce
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+// scilab Code Exa 18.41 Calculation for the Pelton Wheel

+NS=0.1; //specific speed

+H1=1000; // net head for the model in m

+Q1=1; // discharge in m3/s

+omega1=NS*(H1^(3/4))/(sqrt(Q1)*0.1804);

+N1=omega1*60/(2*%pi);

+disp("rpm",N1,"speed of the rotation is")

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

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

+P1=rho*g*Q1*H1;

+

+// determining the speed, flow rate and power for the prototype

+H2=100; // head for prototype

+N2=N1*sqrt(H2/H1);

+disp("rpm",N2,"speed for the prototype is")

+Q2=sqrt(H2/H1)*Q1;

+disp("m3/s",Q2,"the discharge for the prototype is")

+P2=((H2/H1)^(3/2))*P1;

+disp("MW",P2*1e-6,"the power for the prototype is")