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Erosion Process of 66 MW Steam Turbine Rotor Blades

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Veröffentlicht/Copyright: 1. März 2013
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Materials Testing
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Abstract

Apart from erosion of leading edges, erosion of the rotor blades trailing edges often occurs in condensing steam turbines, due to the impact of wet steam water droplets. Considerable erosion of the rotor blades trailing edges may be more dangerous for a reliable turbine operation than the leading edges erosion. During several years of research many results concerning erosion damage to the trailing edges of 66 MW condensing reduction steam turbine final stage rotor blades at the Thermo-electric power plant – heating plant (TE-TO) Zagreb have been gathered and are presented in this paper. Correlation between the erosion process behavior of the last stage turbine rotor blades trailing edges and the number of operating hours has been established.

Abstract

Abgesehen von der Erosion an den Anströmkanten tritt häufig Erosion an den Hinterkanten der Rotorschaufeln von Kondensationsturbinen auf, und zwar aufgrund der Beaufschlagung durch Naßdampftropfen. Beträchtliche Erosion an den Hinterkanten der Rotorschaufeln kann für den zuverlässigen Turbinenbetrieb gefährlicher sein als die Erosion an den Anströmkanten. Im Verlauf der mehrjährigen Forschungsarbeiten bezüglich der Erosionsschädigung in der letzten Stufe an den Hinterkanten der Rotorschaufeln einer 66 MW Kondensationsturbine der Energieerzeugungsanlage in Zagreb wurde viele Ergebnisse gesammelt, die in dem vorliegenden Beitrag präsentiert werden. Hierbei wurde ein Bezug zwischen dem Erosionsverhalten in der letzten Stufe der Hinterkanten der Turbinenrotorschaufeln und der Betriebsstundenzahl hergestellt.

Branko Staniša, born in 1941, graduated in 1970 at the Faculty of Mechanical Engineering, University of Ljubljana, and obtained the master title in 1980 at the Faculty of Mechanical Engineering and Naval Architecture in Zagreb as well as his Ph.D. in 1987. He has worked in the industry for twenty years and since 1991, he is employed at the Technical Faculty, University in Rijeka, as professor.

Zdravko Schauperl, born in 1964, in Zagreb where he graduated in 1989 at the Faculty of Mechanical Engineering and Naval Architecture. He acquired his master in 1996 and obtained his Ph.D. title in 2000. He has working experience in the industry, and currently works as professor at the Faculty of Mechanical Engineering and Naval Architecture in Zagreb at the Department for Materials where he is head of the Metallographic Laboratory.

Mateja Šnajdar born in 1983 in Zagreb where she graduated and obtained the title of Master of Mechanical Engineering in 2008 at the Faculty of Mechanical Engineering and Naval Architecture. She is currently a junior researcher at the Department of Materials in the Faculty of Mechanical Engineering and Naval Architecture and a 2nd year postgraduate student.

References

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Published Online: 2013-03-01
Published in Print: 2012-03-01

© 2012, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. TMF Cracking in Metallic Heat Shields of Gas Turbine Combustion Chambers
  5. Erosion Process of 66 MW Steam Turbine Rotor Blades
  6. Optimisation of GTAW Parameters for the Tensile Strength of AISI 304 Stainless Steel Welds Using the Taguchi Method
  7. Impact Resistance of Armor Composite Made of Kevlar29 and Al2O3 Powder
  8. A Study on the Recycling of Aluminium Alloy 7075 Scrap
  9. Microstructural Studies on New Developed Niobium Cast High Speed Tool Steel
  10. Structural Design Optimization of Vehicle Components Using Cuckoo Search Algorithm
  11. Mechanical Properties of A6063/SiC Composites Produced Using the Lost Foam Casting Process
  12. Development of Vibration Isolation Mounts of a Vehicle Using Static and Dynamic Analysis
  13. Neuartige automatisierte Stangenprüfung mit Ultraschall-Gruppenstrahlern
  14. Kalender/Calendar
  15. Kalender
  16. Vorschau/Preview
  17. Vorschau
https://doi.org/10.3139/120.110310

Artikel in diesem Heft

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. TMF Cracking in Metallic Heat Shields of Gas Turbine Combustion Chambers
  5. Erosion Process of 66 MW Steam Turbine Rotor Blades
  6. Optimisation of GTAW Parameters for the Tensile Strength of AISI 304 Stainless Steel Welds Using the Taguchi Method
  7. Impact Resistance of Armor Composite Made of Kevlar29 and Al2O3 Powder
  8. A Study on the Recycling of Aluminium Alloy 7075 Scrap
  9. Microstructural Studies on New Developed Niobium Cast High Speed Tool Steel
  10. Structural Design Optimization of Vehicle Components Using Cuckoo Search Algorithm
  11. Mechanical Properties of A6063/SiC Composites Produced Using the Lost Foam Casting Process
  12. Development of Vibration Isolation Mounts of a Vehicle Using Static and Dynamic Analysis
  13. Neuartige automatisierte Stangenprüfung mit Ultraschall-Gruppenstrahlern
  14. Kalender/Calendar
  15. Kalender
  16. Vorschau/Preview
  17. Vorschau
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