Detection of Near-Surge Operation of a Centrifugal Compressor by Means of the Wavelet Transform and Adaptive Signal Filtering

• Autorzy: Horodko L.
• Konferencja: International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (21-23.09.2005; Łódź; Polska)
• Języki publikacji: EN

Abstrakty

EN

The paper employs the results of the experiment that brought slowly the compressor to surge by closing the throttling valve. The continuous wavelet transform applied to the pressure signals obtained during this experiment shows different phases of compressor operation that manifest themselves in the time-frequency domain. A change of the signal spectrum in the vicinity of the instability area, detected with the adaptive signal filtering, was used to indicate the compressor approach to the surge zone.

Słowa kluczowe

EN

compressor; signal analysis; adaptive filtering

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2005
• Tom: nr 128, vol. 1
• Strony: 235--242
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Horodko L.

• Technical University of Lodz Institute of Turbomachinery,

Bibliografia

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• [5] Horodko L., Kryllowicz W., Hanausek P., 2002. "Application of the Wavelet Technique to Investigation of the Unstable Centrifugal Compressor Operation", Sc. Bulletin of TU Lodz, Poland, CMP – Turbomachinery, Vol. 122, pp. 199-208.
• [6] Horodko L., 2005, "Investigation of Centrifugal Compressor Surge with Wavelet Method", Proceedings, 6-th European Conference on Turbomachinery, Fluid Dynamics and Thermodynamics, Lille, Vol. 2, pp. 635-644.
• [7] Moore F., Greitzer E., 1986. "A Theory of Post-Stall Transients in Axial Compressors: Part I – Development of the Equations". ASME Journal of Engineering for Gas Turbines and Power, Vol. 108, pp. 68-76.
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• [9] Spakovszky Z. S., 2004. "Backward Travelling Rotating Stall Waves in Centrifugal Compressors". ASME Journal of Turbomachinery, Vol. 126, pp. 1-12.