Gas turbine axial compressor performance is heavily influenced by blade fouling. As a result, the gas turbines efficiency and producible power output decrease. Performance degradation of an axial compressor stage due to fouling can be analyzed by means of simulation through computational fluid dynamics (CFD) codes. Usually these methods reproduce the deteriorated blades by increasing their surface roughness and thickness. Another approach is the scaling of compressor stage performance maps. A model based on stage-by-stage techniques was presented in a previous work. This model is able to estimate the modifications of the overall compressor performance map as a function of the operating hours. The aim of the present study is to combine these two different approaches in order to relate the increase of blade computational surface roughness with compressor operating hours.
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Compressor Fouling Modeling: Relationship Between Computational Roughness and Gas Turbine Operation Time
Francesco Melino,
Francesco Melino
IMEM, CNR, Parma,
Italy
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Mirko Morini,
Mirko Morini
MechLav,
Università di Ferrara
, Ferrara, Italy
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Antonio Peretto,
Antonio Peretto
DIEM, Università di Bologna, Bologna,
Italy
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Michele Pinelli,
Michele Pinelli
Dipartimento di Ingegneria,
Università di Ferrara
, Ferrara, Italy
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Pier Ruggero Spina
Pier Ruggero Spina
Dipartimento di Ingegneria,
Università di Ferrara
, Ferrara, Italy
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Francesco Melino
IMEM, CNR, Parma,
Italy
Mirko Morini
MechLav,
Università di Ferrara
, Ferrara, Italy
Antonio Peretto
DIEM, Università di Bologna, Bologna,
Italy
Michele Pinelli
Dipartimento di Ingegneria,
Università di Ferrara
, Ferrara, Italy
Pier Ruggero Spina
Dipartimento di Ingegneria,
Università di Ferrara
, Ferrara, Italy
J. Eng. Gas Turbines Power. May 2012, 134(5): 052401 (8 pages)
Published Online: March 5, 2012
Article history
Received:
June 24, 2011
Revised:
July 1, 2011
Online:
March 5, 2012
Published:
March 5, 2012
Citation
Melino, F., Morini, M., Peretto, A., Pinelli, M., and Ruggero Spina, P. (March 5, 2012). "Compressor Fouling Modeling: Relationship Between Computational Roughness and Gas Turbine Operation Time." ASME. J. Eng. Gas Turbines Power. May 2012; 134(5): 052401. https://doi.org/10.1115/1.4004739
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