Effect of Operating Conditions on the Emission Characteristics Of an Annular Combustor

Abstract

Pollutant emissions from combustion processes have become of great public concern due to their impact on health and the environment. Recent growth in civil aviation and stationary gas turbines power plants is worsening the situation both at airport vicinity and in altitude. This has called for rapid changes both in the regulations and controlling gas turbine emissions and in the technologies used to meet these regulations. All these developments have been accompanied by continuous and increasing pressure on the combustion engineers to reduce pollutant emissions from all types of gas turbines while operating at very high levels of pressure and temperature. In this paper an effort is made to characterize an annular combustion chamber from emission point and effect of various operating conditions has been analyzed. The emission characteristics of combustor are very satisfied and are inline to that of contemporary combustors of same class. This study can lead to combustor modifications for bringing down the emission levels to meet the international regulations.