C in to
C to  
                                                    Total    

 from air  

Air  

Volume and % composition of flue gas

  Kgmoles                          %

           
                   
                   
                       

 Total           1 

Also important is the amount of carbon burnt at the tuyere level.

In order to find amount of carbon, burnt at the tuyere, volume of blast can be used.

 of blast is inert and  react with carbon only.

All oxygen of blast reacts with  

Volume of blast   

.