Flow noise correlation with efficiency and vibration level - two-stage turbine case

• Autorzy: Błaszczak J. R.

Warianty tytułu

PL

Badanie korelacji hałasu, przepływu, sprawności oraz poziomu drgań dla przypadku dwustopniowej turbiny

• Języki publikacji: EN

Abstrakty

EN

The objective of the presented test program was to investigate flow effects influence on the performance, noise and vibration levels of a two-stage low-pressure turbine. Measurement results for different circumferential positions of the turbine vanes are described to determine how noise and vibration could be affected by airfoil indexing and flow condition changes. Two cases are presented: for nominal rotational speed of the machine and for off-design turbine conditions (highly-loaded turbine case). Results showed some possibilities of a future turbomachinery performance and reliability improvement. In addition, another way to reduce noise emitted by a turbomachine and to lower vibration level is demonstrated. The investigations have been carried out at the Institute of Turbomachinery (Instytut Maszyn Przepływowych, IMP), Technical University of Lodz, Poland.

Słowa kluczowe

EN

two-stage turbine; efficiency; flow effect; low pressure turbine

PL

turbina; turbina dwustopniowa; przepływ; sprawność

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems : journal of transdisciplinary systems science
• Rocznik: 2006
• Tom: Vol. 11, nr 1
• Strony: 8--15
• Opis fizyczny: bibliogr. 16 poz.

Twórcy

autor

Błaszczak J. R.

• Politechnika Łódzka, Instytut Maszyn Przepływowych, 1-10, ul. Wólczańska 219/223, 93-005 Łódź

Bibliografia

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