Unsteady flows in the last stator rows of axial compressor of gas turbine working in coal gasification combined cycle

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F06%3A00501021" target="_blank" >RIV/49777513:23210/06:00501021 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Unsteady flows in the last stator rows of axial compressor of gas turbine working in coal gasification combined cycle

Original language description

Fatigue failure of the last three stator row vanes of the Alstom gas turbine axial compressor occurred in Vresova power plant. The plant uses syngas, produced by the brown coal gasification, as fuel. Experimental investigation of nonsteady flow in the axial compressor was carried out by means of the static and total pressure probes. Flow pulsations, in the rear part of compressor, at a frequency of (380 ? 400) Hz were found. This frequency is near the first natural frequency of the damaged stator vanes.The stalled flow on vane surfaces with vortex structure shedding off is responsible for the flow pulsation origin.The results of flow simulations in cascades of last three stator rows support such conclusion.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JE - Non-nuclear power engineering, energy consumption and utilization

OECD FORD branch

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Project

<a href="/en/project/GA101%2F04%2F1125" target="_blank" >GA101/04/1125: Design of axial compressor stage with high aerodynamic loading with application of numerical flow simulation and its experimental verification</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of GT2006. ASME Turbo Expo 2006: Power for Land, Sea and Air

ISBN

0-7918-4241-X

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

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Publisher name

ASME

Place of publication

New York

Event location

Barcelona

Event date

May 11, 2006

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000242494000013