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///Chapter No 11 Steam Boilers
////Example 11.13 Page No 244
//Find Air-fuel ratio
//Input data
clc;
clear;
hw=20; //Static draught of water in mm
H=50; //Chimney height in m
Tg=212+273; //Temperature of the fuel degree celsius
Ta=27+273; //Atmospheric air in degree celsius
//Calculation
ma=(-((hw/(353*H))-Ta*Tg))*10^-4 //Air-fuel ratio in Kg/Kg of fuel burnt-3
//Output
printf('Air-fuel ratio= %f Kg/Kg of fuel burnt \n',ma);
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