Analysis of thermodynamic cycle influence of turbofan mixer engine on its performance

• Autorzy: Jakubowski R.
• Języki publikacji: EN

Abstrakty

EN

The turbofan engines are widely used as propulsion of the contemporary airplanes. In the military application the turbofan mixer engines are used. Although the turbofan mixer engines are applied for a long time, the information about exact analysis of their thermodynamic cycle and performance are still in complete. The thermodynamic cycle of the turbofan mixer engine is presented and discussed in this paper. Based on it the cycle parameters selection is discussed. Then the optimization of turbofan mixer engine cycle is presented. Final results present the influence of chosen engine cycle parameters on the engine performance. The results are analyzed and discussed. On the basis of them the conclusions are formulated. It is not such an easy process to choose for the turbofan mixer engine thermodynamic parameters. It is connected with the fulfilment of two important rules. The equalization of total pressure of mixer inflow streamfor mixer efficient work is the first of it. The other rule is connected with engine cycle optimization. As it is shown it is not possible to choose engine parameters to reconcile the demands of specific thrust maximization and specific fuel consumption minimization. The engine thermodynamics parameters selection process is the search of the compromise between these two demand fulfilments, very often including engine mass analysis.

Słowa kluczowe

EN

aircraft engines; turbojet engines; modelling of turbojet engines; turbojet engine characteristics

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2009
• Tom: Vol. 16, No. 4
• Strony: 171--178
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Jakubowski R.

• Rzeszów University of Technology Department of Aircrafts and Aircraft Engines W. Pola Street 3, 35-959 Rzeszów, Poland tel: [phone], fax: [phone],

Bibliografia

• [1] Jakubowski, R., Badanie wpływu jakości procesów energetycznych w turbinowym silniku odrzutowym na efektywność eksploatacyjną metoda bilansu energetycznego, Rozprawa doktorska, Rzeszów 2004.
• [2] Jakubowski, R., Investigation on the turbofan with mixer engine model sensitivity of thermalflow process modification in the engine’s components, Journal of KONES Powertrain and Transport, Vol. 14, No. 4, pp. 119-126, Warszawa 2007.
• [3] Jakubowski, R., Comparison of internal processes effectiveness change influence the turbofan with and without mixer model sensitivity, Journal of KONES Powertrain and Transport, Vol. 15, No. 3, pp. 201-208, Warszawa 2008.
• [4] Jakubowski, R., Orkisz, M., Wpływ zmian sprawności procesów przepływowo-cieplnych w turbinowym silniku odrzutowym na jego charakterystyki użytkowe, Niezawodność i Eksploatacja, Nr 2 (14), Lublin 2002.
• [5] Nieciajew, Ju. I., Awiacionnyje turboreaktibnyje dwigatieli c izmieniajemym rabocim procesom dla mnogoreżumnych samoletow, Maszunostrojenia, Moskwa 1988.
• [6] Orkisz, M. i in., Podstawy doboru turbinowych silników odrzutowych do płatowca, Biblioteka Naukowa Instytutu Lotnictwa, Warszawa 2002.
• [7] Wygonik, P., Ctiteria of aircraft engine prameters evaluation for multi-purpose aircraft, Journal of KONES Powertrain and Transport, Vol. 14, No. 2, pp. 571-578, Warszawa 2007.