Pitaksa Suvarnakuta, Suthum Patumsawad and Somrat Kerdsuwan

pp. 125 - 129

Abstract

A experiment was conducted in a laboratory scale controlled-air incinerator in to observe the effect of secondary combustion air temperature to secondary burner operation and its fuel consumption. Sawdust was partially burned in a primary combustion chamber while feeding with primary air at 30% of stoichiometric condition. An incomplete product of
combustion flowed into the secondary combustion chamber to be re-burned with preheated secondary combustion air. It was discovered that increased secondary combustion air temperature affected the characteristics of the operation of the secondary burner and reduced its fuel consumption to a factor of 7.7 and 22.9% at a preheated secondary combustion air
temperature of 500°C and 1000°C, respectively.

Keywords

• auxiliary fuel consumption
• highly preheated combustion air
• controlled-air incinerator