Study of the Effects of Heat Exchanger Location on Turbofan Engine Performance

• Autorzy: Jakubowski Robert , Bednarz Arkadiusz , Rogalski Łukasz

Identyfikatory

DOI

10.12913/22998624/189464

• Języki publikacji: EN

Abstrakty

EN

The article presents a numerical investigation of the impact of heat exchanger (HE) location on the performance of the geared turbofan engine (GTF). It discusses the development trend for aero engines, with a primary focus on the modification of the turbofan engine cycle by the addition of the heat exchanger. This paper presents the current state of research on heat exchangers and their application in aero engines. The paper focuses on the thermodynamic model of the GTF engine, with particular emphasis on its modification to study the impact of heat exchangers on engine performance. The assumptions and limitations of the model are also discussed. The study examines the effects of various locations of the heat exchanger in the GTF engine, as well as its efficiency and pressure drop, on the engine overall performance, as measured by thrust and specific fuel consumption (SFC). The study demonstrates that the use of HE has a positive effect on engine thrust, but it also leads to an increase in SFC. According to the results, the HE should be positioned in the core engine of the GTF to achieve maximum thrust. This is achieved when the HE core flow inlet is located at approximately half the pressure ratio of the high-pressure compressor (HPC). It was found that the cold side pressure losses of the HE have a significant impact on engine performance for high bypass ratio turbofan engines. The additional conclusion can be drawn that, when designing a heat exchanger, it is of the utmost importance to take care to minimize its impact on pressure losses in the external channel of the engine.

Słowa kluczowe

EN

turbofan engine; turbofan with heat exchanger; modification; modified turbofan engine; geared turbofan engine; GTF

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2024
• Tom: Vol. 18, no 4
• Strony: 355--368
• Opis fizyczny: Bibliogr. 42 poz., fig., tab.

Twórcy

autor

Jakubowski Robert

• Department of Aerospace Engineering, Faculty of Mechanical Engineering and Aviation, University of Technology, Al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland

• https://orcid.org/0000-0002-1886-2966

autor

Bednarz Arkadiusz

• Department of Aerospace Engineering, Faculty of Mechanical Engineering and Aviation, University of Technology, Al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland

• https://orcid.org/0000-0002-3611-7513

autor

Rogalski Łukasz

• MTU Aero Engines Polska, Tajęcina 108, 36-002 Tajęcina, Poland

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