Optimization of a three spool axial compressor to increase the efficiency of a gas turbine engine

International Conference on Compressors and their Systems 2019

Marchukov, Evgenii^1 ; Egorov, Igor^1 ; Popov, Grigorii^2 ; Baturin, Oleg^2 ; Goriachkin, Evgenii^2 ; Novikova, Yulia^2

Moscow Aviation Institute, Moscow, Russia^1

Samara National Research University, Samara, Russia^2

关键词: Axial compressors;    Blade profile;    Complex model;    Efficiency criteria;    Operating condition;    Overall efficiency;    Specific tasks;    Stagger angle;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/604/1/012048/pdf
DOI  :  10.1088/1757-899X/604/1/012048

来源: IOP

【 摘 要 】

The paper provides a description of the algorithm, an example of a specific task, and the results of the optimization of a 15-stage three-spool compressor for a ground-based GTU by the efficiency criteria of the engine. It can be performed by using the proposed algorithm to find such a compressor configuration that will be not just the optimum compressor, but the best option for working as part of the engine under the specified operating conditions and with various types of required restrictions. Using the proposed algorithm, varying only the stagger angles of the profiles, the authors managed to find a way to increase the overall efficiency of the NK-36ST engine by 0.43%. Obviously, it is possible to achieve a more impressive result and at the same time to increase reliability, reduce the weight and cost of the engine by applying more complex models by changing the shape of the blade profiles.