[article]
| Titre : |
Compressor fouling modeling : relationship between computational roughness and gas turbine operation time |
| Type de document : |
texte imprimé |
| Auteurs : |
Francesco Melino, Auteur ; Mirko Morini, Auteur ; Antonio Peretto, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
08 p. |
| Note générale : |
Génie mécanique |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Blades Compressors Computational fluid dynamics Gas turbines Surface roughness |
| Index. décimale : |
620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux |
| Résumé : |
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. |
| DEWEY : |
620.1 |
| ISSN : |
0742-4795 |
| En ligne : |
http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JETPEZ000134000005 [...] |
in Transactions of the ASME . Journal of engineering for gas turbines and power > Vol. 134 N° 5 (Mai 2012) . - 08 p.
[article] Compressor fouling modeling : relationship between computational roughness and gas turbine operation time [texte imprimé] / Francesco Melino, Auteur ; Mirko Morini, Auteur ; Antonio Peretto, Auteur . - 2012 . - 08 p. Génie mécanique Langues : Anglais ( eng) in Transactions of the ASME . Journal of engineering for gas turbines and power > Vol. 134 N° 5 (Mai 2012) . - 08 p.
| Mots-clés : |
Blades Compressors Computational fluid dynamics Gas turbines Surface roughness |
| Index. décimale : |
620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux |
| Résumé : |
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. |
| DEWEY : |
620.1 |
| ISSN : |
0742-4795 |
| En ligne : |
http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JETPEZ000134000005 [...] |
|
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