Influence of fouling on compressor dynamics: Experimental and modelling approach

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dc.contributor.authorGbanaibolou, Jombo
dc.contributor.authorJiri, Pecinka
dc.contributor.authorSuresh, Sampath
dc.contributor.authorDavid, Mba
dc.date.accessioned2017-10-06T13:30:51Z
dc.date.available2017-10-06T13:30:51Z
dc.date.issued2017-09-15
dc.description.abstractThe effect of compressor fouling on the performance of a gas turbine has been the subject of several papers; however, the goal of this paper is to address a more fundamental question of the effect of fouling, which is the onset of unstable operation of the compressor. Compressor fouling experiments have been carried out on a test rig refitted with TJ100 small jet engine with centrifugal compressor. Fouling on the compressor blade was simulated with texturized paint with average roughness value of 6 microns. Compressor characteristic was measured for both the clean (baseline) and fouled compressor blades at several rotational speeds by throttling the engine with variable exhaust nozzle. A Greitzer-type compression system model has been applied based on the geometric and performance parameters of the TJ100 small jet engine test rig. Frequency of plenum pressure fluctuation, the mean disturbance flow coefficient and pressure-rise coefficient at the onset of plenum flowfield disturbance predicted by the model was compared with the measurement for both the baseline and fouled engine. Model prediction of the flowfield parameters at inception of unstable operation in the compressor showed good agreement with the experimental data. The results proved that used simple Greitzer model is suitable for prediction of the engine compressor unstable behaviour and prediction of the mild surge inception point for both the clean and the fouled compressor.en_UK
dc.identifier.citationJombo G, Jiri P, Suresh S, Mba D. (2017) Influence of fouling on compressor dynamics: Experimental and modelling approach. Journal of Engineering for Gas Turbines and Power, Volume 140, Issue 3, October 2017, Article number 032603, Paper No: GTP-17-1202en_UK
dc.identifier.cris18668809
dc.identifier.issn0742-4795
dc.identifier.urihttp://dx.doi.org/10.1115/1.4037913
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12604
dc.language.isoenen_UK
dc.publisherASMEen_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDynamics (mechanics)en_UK
dc.subjectCompressorsen_UK
dc.subjectModellingen_UK
dc.subjectEnginesen_UK
dc.subjectJet enginesen_UK
dc.subjectBladesen_UK
dc.subjectPressureen_UK
dc.subjectFlow (dynamics)en_UK
dc.subjectSurface roughnessen_UK
dc.subjectGas turbinesen_UK
dc.titleInfluence of fouling on compressor dynamics: Experimental and modelling approachen_UK
dc.typeArticleen_UK

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