initial commit / add all books

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+clear ;

+clc;

+// Example 4.10

+printf('Example 4.10\n\n');

+printf('Page No. 106\n\n');

+

+// given

+T1 = 150;// Surface temperature in degree celcius

+T2 = 20;// Ambient temperature in degree celcius

+d = 0.100; //Outside diametr of pipe in m

+h = 10;// Outside film coefficient in W/m^2-K

+t = 25*10^-3;// thickness of insulation in m

+K = 0.040;// Thermal conductivity of insulation in W/m-K

+

+r2 = d/2;//in m

+r1 = r2+t;// in m

+Q = ((T1-T2)/((1/(2*%pi*r1*h))+(log(r1/r2)/(2*%pi*K))));// in W/m

+printf('The heat loss per unit length is %.0f W/m',Q)