Features of creating an adaptive control law for the output section of the main combustion chamber

Abstract

This article presents the direction of development of the main combustion chamber of a gas turbine engine, namely the organization of the operating process in it. The main directions of development of the main combustion chambers are considered, which allow reducing the specific fuel consumption and the amount of emissions of harmful combustion products into the atmosphere, maintaining the constancy of the excess air coefficient and ensuring the stability of the aerodynamics of the system. The main directions of development are presented and a scientific justification is proposed for the need to create a law of active control for the area of the output section of the combustion chamber. Graphical dependences of the average gas flow velocity at the outlet of the combustion chamber on the engine's operating mode and flight altitude are presented. It is proved that the constancy of the velocity at the exit from the combustion chamber due to the unchanged shape of its output section negatively affects the characteristics of the working process. Examples of possible technical implementation are given. Conclusions are made that allow making an informed decision in the field of improving the main combustion chamber