Research Papers: Gas Turbines: Turbomachinery

Gas Turbine Compressor Fouling and Washing in Power and Aerospace Propulsion

[+] Author and Article Information
Uyioghosa Igie

School of Aerospace, Transport and
Manufacturing (SATM),
Cranfield University,
Bedfordshire MK43 0AL, UK
e-mail: u.igie@cranfield.ac.uk

Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received April 21, 2017; final manuscript received May 30, 2017; published online September 6, 2017. Assoc. Editor: Klaus Brun.

J. Eng. Gas Turbines Power 139(12), 122602 (Sep 06, 2017) (11 pages) Paper No: GTP-17-1147; doi: 10.1115/1.4037453 History: Received April 21, 2017; Revised May 30, 2017

This paper presents a well-researched subject area within academia, with a high degree of application in the industry. Compressor fouling effect is one of the commonest degradations associated with gas turbine operations. The aim of this review is to broadly communicate some of the current knowledge while identifying some gaps in understanding, in an effort to present some industry/operational interest for academic research. Likewise, highlight some studies from academia that present the current state of research, with their corresponding methods (experimental, numerical, actual operations, and analytical methods). The merits and limitations of the individual method and their approaches are discussed, thereby providing industry practitioners with a view to appreciating academic research outputs. The review shows opportunities for improving compressor washing effectiveness through computational fluid dynamics (CFD). This is presented in the form of addressing the factors influencing compressor washing efficiency. Pertinent questions from academic research and operational experiences are posed, on the basis of this review.

Copyright © 2017 by ASME
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Fig. 1

Satellite view of Queen Alia International Airport [4]

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Fig. 2

Satellite view of Hong Kong International Airport [5]

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Fig. 3

Example of on-wing compressor washing

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Fig. 4

Engine health monitoring sensor locations and parameters [14]

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Fig. 5

Fouled rotor blades of heavy-duty engine compressor

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Fig. 6

Compressor washing spray injection with nozzle at the plenum [21]

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Fig. 7

Compressor washing system

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Fig. 8

Foulant deposition on compressor stators—fouled and washed compressor stages [24]

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Fig. 9

Effect of fouling on engine performance for various individual stage fouling [25]

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Fig. 10

Influence of droplet size on streamlines [26]: (a) 5 μm size, (b) 10 μm size, and (c) 300 μm size

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Fig. 11

Depiction of flat fan nozzle—top [28] and spray—bottom [29]

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Fig. 12

CFD model of on-line washing [31]

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Fig. 13

Wind tunnel compressor cascade rig [25]

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Fig. 14

Blade pressure side using fluid A and B, respectively [38]

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Fig. 15

Pressure ratio versus mass flow (smooth stage, rough stator, rough rotor, and rough stage) [42]

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Fig. 16

Isolated rotor and stator—pressure and suction side particle depositions [47]

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Fig. 17

Modified meshes to account for fouling change in geometry [49]

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Fig. 18

Engine power degradation with time [15]

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Fig. 19

Changes in pressure ratio of compressor stages due to front stage fouling [25]




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