// Display mode mode(0); // Display warning for floating point exception ieee(1); clear; clc; disp("Introduction to heat transfer by S.K.Som, Chapter 4, Example 3") //Heat transfer coefficient in W/(m^2*K) h = 30; //Thermal conductivity of sphere in W/(m*K) k = 250; //Biot number for lumped parameter analysis is 0.1 Bi = 0.1; //Characteristic dimension of a cube is (a/6) where a is the side of cube in metre //Maximum dimension in metre a = ((6*k)*Bi)/h; disp("Maximum dimension in metre for lumped parameter analysis") a