Experimental Assessment of Fouling Effects in a Multistage Axial Compressor

The study of the adhesion of micro sized particles to gas turbine internal surfaces, commonly known as gas turbine fouling, has gained increasing attention in the last years due to its dramatic effect on machine performance and reliability. On-field fouling analysis is mostly related to visual inspe...

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Main Authors: Casari Nicola, Pinelli Michele, Spina Pier Ruggero, Suman Alessio, Vulpio Alessandro
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/57/e3sconf_ati2020_11007.pdf
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author Casari Nicola
Pinelli Michele
Spina Pier Ruggero
Suman Alessio
Vulpio Alessandro
author_facet Casari Nicola
Pinelli Michele
Spina Pier Ruggero
Suman Alessio
Vulpio Alessandro
author_sort Casari Nicola
collection DOAJ
description The study of the adhesion of micro sized particles to gas turbine internal surfaces, commonly known as gas turbine fouling, has gained increasing attention in the last years due to its dramatic effect on machine performance and reliability. On-field fouling analysis is mostly related to visual inspections during overhaul and/or programmed stops, which are performed, in particular, when gas turbine performance degradation falls under predetermined thresholds. However, these analyses, even if performed in the most complete as possible way, are rarely (or never) related to the conditions under which the gas turbine contamination takes place since the affecting parameters are difficult or even impossible to be adequately monitored. In the present work, a small scale multistage axial compressor is used to experimentally simulate the fouling phenomenon. The test rig allows the accurate control of the most relevant operating parameters which influence the fouling phenomenon. The compressor performance loss due to particle contamination has been quantitatively assessed. Soot particles appear stickier, especially in the presence of high humidity, and represent the most harmful operating conditions for the compressor unit. The deposits on the stator vanes and the rotor blades have been detected and post-processed, highlighting the most affected regions of each compressor stage employing an image analysis package tool.
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spelling doaj.art-4af4f16046224e40b3803469347290862022-12-21T23:01:16ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011971100710.1051/e3sconf/202019711007e3sconf_ati2020_11007Experimental Assessment of Fouling Effects in a Multistage Axial CompressorCasari NicolaPinelli MicheleSpina Pier RuggeroSuman AlessioVulpio AlessandroThe study of the adhesion of micro sized particles to gas turbine internal surfaces, commonly known as gas turbine fouling, has gained increasing attention in the last years due to its dramatic effect on machine performance and reliability. On-field fouling analysis is mostly related to visual inspections during overhaul and/or programmed stops, which are performed, in particular, when gas turbine performance degradation falls under predetermined thresholds. However, these analyses, even if performed in the most complete as possible way, are rarely (or never) related to the conditions under which the gas turbine contamination takes place since the affecting parameters are difficult or even impossible to be adequately monitored. In the present work, a small scale multistage axial compressor is used to experimentally simulate the fouling phenomenon. The test rig allows the accurate control of the most relevant operating parameters which influence the fouling phenomenon. The compressor performance loss due to particle contamination has been quantitatively assessed. Soot particles appear stickier, especially in the presence of high humidity, and represent the most harmful operating conditions for the compressor unit. The deposits on the stator vanes and the rotor blades have been detected and post-processed, highlighting the most affected regions of each compressor stage employing an image analysis package tool.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/57/e3sconf_ati2020_11007.pdf
spellingShingle Casari Nicola
Pinelli Michele
Spina Pier Ruggero
Suman Alessio
Vulpio Alessandro
Experimental Assessment of Fouling Effects in a Multistage Axial Compressor
E3S Web of Conferences
title Experimental Assessment of Fouling Effects in a Multistage Axial Compressor
title_full Experimental Assessment of Fouling Effects in a Multistage Axial Compressor
title_fullStr Experimental Assessment of Fouling Effects in a Multistage Axial Compressor
title_full_unstemmed Experimental Assessment of Fouling Effects in a Multistage Axial Compressor
title_short Experimental Assessment of Fouling Effects in a Multistage Axial Compressor
title_sort experimental assessment of fouling effects in a multistage axial compressor
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/57/e3sconf_ati2020_11007.pdf
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AT spinapierruggero experimentalassessmentoffoulingeffectsinamultistageaxialcompressor
AT sumanalessio experimentalassessmentoffoulingeffectsinamultistageaxialcompressor
AT vulpioalessandro experimentalassessmentoffoulingeffectsinamultistageaxialcompressor