On the need to maintain homogenous temperature field within the working agent at the intake of a jet engine turbine

• Autorzy: Pawlak W. I. , Błachnio J.

Identyfikatory

DOI

10.5604/12314005.1134099

• Języki publikacji: EN

Abstrakty

EN

The paper presents results from numerical experiments with use of the computer model of the SO-3 engine designed for simulations. The model has been purposefully modified to take account of the assumed nonhomogeneity of the temperature field within the working agent at the turbine intake. It turned out that such nonhomogeneity substantially affects dynamic and static properties of the engine are considered as an object of control since it leads to a lag of the acceleration time and to increasing in fuel consumption. The summarized simulation results demonstrate that the foregoing properties of a jet engine are subject to considerable deterioration in pace with gradual increase of the assumed non-homogeneity of the temperature field, The simulations made it possible to find out that variations of the temperature field non-homogeneity within the working agent at the turbine intake lead to huge fluctuation of the turbine rpm for the idle run, which enables a new look to the role of the so-called idle run valve and importance of that component within the supply and control system of the SO-3 engine.

Słowa kluczowe

EN

turbine jet engine; simulation model; working agent temperature field

• 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: 2014
• Tom: Vol. 21, No. 1
• Strony: 205--213
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Pawlak W. I.

• Air Force Institute of Technology KsiĊcia Bolesáawa Street 6, 01-949 Warsaw tel.: [phone], fax: [phone]

autor

Błachnio J.

• Air Force Institute of Technology KsiĊcia Bolesáawa Street 6, 01-949 Warsaw tel.: [phone], fax: [phone]

Bibliografia

• [1] Driankov, D., Hellendoorn, H., Reinfrank, M., Introduction to fuzzy-logic control, WNT, Warsaw 1996.
• [2] Dzida, M., Identification of reasons for non-stationary and non-homogenous behaviour of gas temperatures and pressures downstream the combustion chamber of gas turbines, University of Technology in Gdansk, the monograph #16, Publishing House of the University of Technology in Gdansk, Gdansk 2000.
• [3] Lindstedt, P., Practical control of machinery and its theoretical backgrounds, ITWL Publishing House, Warsaw 2010.
• [4] Pawlak, W., Wiklik, K., Morawski, J. M., Synthesis and investigation of control systems for turbojet engines with use of computer simulation methods, Scientific Library of ITWL, Warsaw 1996.
• [5] Pawlak, W. I., Influence of an inequality of gas thermal field at the engine turbine inlet on the speed of transient processes – the result of experiments with simulation model, Journal of KONES, Vol. 7, No. 1-2, 2000.
• [6] Pawlak, W. I., Balicki, W., Influence of an inequality of gas thermal field at the engine turbine inlet on the speed of transient processes – the result of experiments with real engine, Journal of KONES, Vol. 10, No. 3-4, 2003.
• [7] Pawlak, W. I., Turbojet engine – instruments for simulation, control and monitoring, Scientific Library of the Institute of Aviation, the Avionic power drives, Item 31, Warsaw 2010.
• [8] Pismenny, J., Levy, Y., Local Temperature Regulator In Gas Turbine Engines, International Journal of Turbo& Jet – Engines, Vol. 10, No. 1-2, pp. 79-92, 2002.
• [9] Stewart, I., Does God play dices? The new mathematics of chaos, PWN Scientific Publications, Warsaw 2001.