Overview of Thermoacoustic Instability in Gas Turbine Combustion Chamber

Abstract

Thermoacoustic instability in combustion chambers is strongly influenced by acoustic interactions at the boundaries of the configuration. As significant of various literatures review of thermoacoustic instabilities investigations is incorporated in this paper. There are several measures used today to reduce NOx emissions in gas turbines. The most efficient option is to lower the combustion temperature. However, this is in general counter-productive when it comes to engine efficiency and the general trend within thermal machinery is instead to increase temperatures in order to improve engine efficiency. Another way to reduce emissions often utilized is different measures to improve combustion stability allowing for reduction of the stabilizing diffusion pilot and hence lower NOx emissions. Important step is to design the gas turbine engine by decreasing the instability of combustion chamber equipment as due to continuous hike in fuel prices. Due to this region main attention for innovations results and sometimes new ideas have drawn prone to instability in combustion chamber. The inner part of the combustion chamber are equipped with some instrument which gives proper and suitable amount of fuel by the springs in very small drop throughout the combustion chamber, due to these our stabilization will be increase in steady level and decrease the instablization leads our vehicle’s efficiency to increase. This paper gives the overall comparative study of cause and reduction combustion instability in gas turbine engine.