Abstract
This study is to clarify the optimum condition of combustion, concerning fuel feeding rate and air flow rate, through the analysis of exhaust gas, for the purpose of obtaining the fundamental data on combustion control. Burning experiments were carried out under the condition of 25 to 50kg/h fuel feeding rates and 0.02 to 0.1Nm3/s air flow rates.
The results provided the relationships between fuel feeding rate and air flow rate to set up the optimum combustion, and the optimum excess air ratio were in the range of 1.3 to 1.6. The exhaust gas was mainly composed of N2, O2, CO2 and CO. Sensing only O2 content in the exhaust gas might be sufficient to establish a combustion control system.
