A study of noise emission from a gas turbine

• Autorzy: Hočevar M , Širok B , Donevski B , Dvoršek M
• Konferencja: International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (15-17.09.2008; Łódź; Polska)
• Języki publikacji: EN

Abstrakty

EN

An analysis of low frequency noise emissions from a gas turbine was performed. Vibrations from the stack elbow, noise in the near field of the elbow, and fluctuations of light intensity in the combustion chamber were measured simultaneously. The presented results point out the origin of the low-frequency noise in the combustion chamber. By applying cross-correlation analysis, the quasi-periodic, non-linear nature of the relationship between optical pulsations in the turbine's combustion chamber and the signal of noise outside the flow tract is shown.

Słowa kluczowe

EN

gas turbine; noise emission; combustion; pressure pulsations

PL

silnik gazowy; turbina gazowa; emisja hałasu; ciśnienie pulsujące; spalanie

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2008
• Tom: nr 133
• Strony: 149--156
• Opis fizyczny: Bibliogr. 5 poz.

Twórcy

autor

Hočevar M

• Faculty of mechanical engineering, Aškerčeva 6, SI 1000 Ljubljana, Slovenia, marko

autor

Širok B

• Faculty of mechanical engineering, Aškerčeva 6, SI 1000 Ljubljana, Slovenia, brane

autor

Donevski B

• University St. Kliment Ohridski, Faculty of Technical Sciences, Ivo Lola Ribar. b.b., MK 7000 Bitola, Macedonia

autor

Dvoršek M

• Termoelektrarna Šoštanj, Cesta Lole Ribarja 18, SI 3325 Šoštanj, Slovenia, matjaz

Bibliografia

• [1] Hočevar M., Širok B., 2002, Determination of possible low-frequency noise sources on gas turbines, Measurement report No. 2697, Turboinstitut, Slovenia.
• [2] Hočevar M., 2002, Noise measurements after windows replacement in a sample building, Measurement report No. 2717, Turboinstitut, Slovenia.
• [3] Novak M., Hočevar M., Širok B., 2003, Empirical Study on Noise Emission of Gas Turbines, 4th CAME-GT Workshop for Industrial Gas Turbines, Brussels.
• [4] Guenther B.C., Hansen K.H., Veit I., 1994, Technische Akustik - Ausgewaehlte Kapitel, Expert Verlag, Renningen-Malmsheim.
• [5] Sams G., Jordan J., 1997, Designing Low Noise Burners Inside Firetubes, Applied Acoustics, 51, 2, 121-139.