Thermodynamic designing of the small-scale gas turbine engine family with common core

Andrey Tkachenko,Evgeny Filinovaroslav Ostapyuk,Daria Kolmakova,V.n Rybakov

doi:10.1051/matecconf/201822003007

Andrey Tkachenko, Evgeny Filinovaroslav Ostapyuk + Show 2 more

Open Access

https://doi.org/10.1051/matecconf/201822003007

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Abstract

The paper describes the method of selecting the working process parameters of a family of small-scale gas turbine engines (GTE) with common core. As an example, the thermodynamic design of a family of small-scale gas turbine engines (SGTE) with common core was carried out. The engine family includes a small-scale turbojet engine (STJE) and a gas turbine plant (GTP), which electric generator is driven by power turbine. The selection of rational values for the working process parameters of STJE and GTP was carried out in CAE system ASTRA on the basis of nonlinear optimization of these parameters, taking into account functional and parametric constraints. The quantitative results of deterioration in the performance of the engines of the family with common core are obtained in comparison with the engines with the optimum core for each type. However, the advanced creation of a common core can reduce the cost and timing of the engine creation, ensure its higher reliability (due to the development of the base common core) and reduce the cost of its production. The method of selecting the parameters of the working process of the GTE family with common core presents the solution to more complex problems, such as the possibility of developing a family consisting of five engines: a turbojet engine, turbofan engine, turbofan engine with a complex cycle, GTE with power turbine (GTE-PT), GTE-PT with recovery.

Highlights

The designing of a modern gas turbine engine "from the scratch" requires a large financial cost and it takes from 7 to 15 years to complete
One of the solutions to this problem is the advanced creation of a common core, on the basis of which it is possible to create a family of gas turbine engines with a wide range of applications covering the needs of aircraft and industrial enterprises
The solution of the task of selecting the working process parameters of the gas turbine engines (GTE) family with common core consists of the following main stages: 1. Determination of efficiency criteria Yk i when optimizing the parameters of the working process of each engine from the set Zk by each performance criterion from the set Yi . 2

Summary

Introduction

The designing of a modern gas turbine engine "from the scratch" requires a large financial cost and it takes from 7 to 15 years to complete. One of the solutions to this problem is the advanced creation of a common core, on the basis of which it is possible to create a family of gas turbine engines with a wide range of applications covering the needs of aircraft and industrial enterprises. This allows shortening the time of release of new equipment, increasing its reliability and reducing the cost. It is obvious that GTE with common core in terms of efficiency will be somewhat worse than the optimal gas turbine engine, designed for a particular purpose with optimum core. The engine parts at the 4 level of unification have the same catalog numbers

Problem statement

Materials and methods

Selection of the working process parameters of the STJE and GTP

Findings

Conclusion