Noise emission level versus the structure of the aircraft turbine engine

• Autorzy: Kowalski M.
• Języki publikacji: EN

Abstrakty

EN

This article presents the problem of noise generated by turbine jet engines. It points out possible directions of noise decrease with particular emphasis upon structural changes within the engines, the task of which is to reduce the noise mission. The example of the modernization is based upon the "bypass" type of one-flow turbine jet engine. The essay contains theoretical basis of calculation of the noise emission level and the results, which graphically indicate a relative level of noise of this type of engine depending upon the amount of discharged air and the diameter of the discharge nozzle and the radius, upon the basis of which the noise level is determined. This work also includes a comparison of the relative noise level of this type of engine with regard to one-flow turbine engine equipped with the function of air discharge to the environment and with regard to two-flow turbine jet engine equipped with air stream flow mixing device. The essay ends with short conclusions. In order to struggle with the air noise special "Environmental Protection Programmes" are prepared. Civil airports and military airports prepare new procedures for taking off and approaching planes as well as optimize the approach and take off airport flight zone corridors. Unfortunately, in the case of so big surfaces, acoustic screens would not bring desired effects, also due to costs.

Słowa kluczowe

EN

noise of aircraft engines; environmental impact of a jet engine turbine

• 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: 2012
• Tom: Vol. 19, No. 4
• Strony: 325--332
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Kowalski M.

• Air Force Institute of Technology, 6 Księcia Bolesława Street, 01-494 Warsaw, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Dzierżanowski, P. et al., Turbinowe silniki odrzutowe, WKŁ, Warszawa 1983.
• [2] Janusiak, K., Kamiński, J., Rutkowski, K., Szczeciński, S., Hałaśliwość samolotów i śmigłowców, WPT, Warszawa, 11/1983.
• [3] Kijewski, T., Samolot a środowisko 0 hałas i emisja spalin, Politechnika Rzeszowska, Seminarium dyplomowe, 2001/2002.
• [4] Kliackin, A. Ł A, Teorija wozduszno-reaktywnych dwigatieliej, Maszinostrojenije, Moskwa 1969.
• [5] Kowalski, M., Analiza termogazodynamiczna parametrów użytkowych turbinowego silnika odrzutowego typu „bypass”, Rozprawa doktorska, Warszawa 1995.
• [6] Kowalski, M., Orkisz, M., Szczeciński, S., Napęd lotniczy typu "bypass", WPT Warszawa 1993.
• [7] Rotwierow, N. JU., Siłowyje ustanowia perspektiwnych swierchzwukowych pasażerskich samoliotow, Awiastrojenije ekspress – informacja, Moskwa 29/1989.
• [8] Announcement No. 14 of the President of the Civil Aviation Office, dated 26th April 2010 on the announcement of the text of the Appendix 16, Vol. I to the Convention on the international civil aircraft, prepared in Chicago on 7th December, 1944, Journal of Acts of the Civil Aviation Office, No. 6, Warsaw 2001.