Abstract
This paper is concerned with a study on pollutant emissions from a gas turbine during its transient operation. Exhaust gases of a small gas turbine are measured and analyzed during its accelerating and decelerating phases. Based on the results, the relation between the formation of pollutants and the thermodynamic and aerodynamic characteristics of the gas turbine are discussed. The total amount of NOx, CO and THC obtained by the analysis is compared with the amount estimated from the emission characteristics of the stabilized operation.