Improvements in the turbo-engine by replacement of conventional combustion chamber by a pulse combustion chamber

摘要

This paper comprises description of the turbo engine and evaluation of itsanalytical model. The analytical model was created to establish a benchmark forfurther evaluation of a wave rotor combustor (at constant volume). The wave rotorcombustor concept was presented and discussed. Advantages of combustion at con-stant volume were described as well as the basic turbo engine updates required toreflect pulse combustor application. The calculation results for analytical model ofa basic engine, and that equipped with pulse combustor are included in this paper.The paper describes the required changes in the engine structure and constructionand the estimated thermodynamic improvements. Axial-type pulse multi-chambercombustion unit increasing the pressure and temperature of gases requires a spe-cial additional turbine utilizing additional energy and forming the interface betweenthe standard compressor-turbine unit. Performance calculations done for an existingGTD-350 engine showed that constant-volume combustion process is valuable.