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overview
Key Learning Objectives
- Appreciate the consequences of arduous operating conditions and why they lead directly to limited component lives and the need to maintain the machine
- Understand the distinction between expected component degradation in normal operation and that which occurs during ‘failures’
- Gain an appreciation of how to assess the useful life of components
- Review the techniques used to repair components so they can continue to operate effectively and reliably
- Appreciate the role of a suitable failure investigation and feedback to minimise the chance of a repeat occurrence
- Assess failures arising from design, operation, repair and maintenance issues
- Review lessons learnt and practical applications which can minimise risk
- Consider implications for future inspection and maintenance practices
About the Course
This course will provide a broad grounding in the integrity and durability considerations of operating and maintaining a gas turbine.
The course starts with covering the reasons why the turbine’s operating conditions are arduous and inevitably lead to the use of special materials and design procedures to estimate component lives. It then moves on to consider the inevitable degradation which occurs during operation, and which gives rise to the need to carry out maintenance of the machine and repair or replace components. Associated with this, the repairs which can be carried out to the components to make them last longer are reviewed, along with how one can assess their condition – are they suitable for further reliable operation? Finally, what happens when the machine gets pushed too far and fails: how does one respond and investigate the failure properly, and then learn from this event?
The course then draws the various issues together to consider the practical steps which can be taken to improve the reliability and durability of machines, i.e. superior asset management.
Who Will Benefit
This course is aimed at engineering personnel involved in the operation or maintenance of gas turbines who need to gain a fuller understanding of key integrity and durability related issues, and what can be done about them.
- Engineers planning and executing maintenance
- Engineering and asset managers
- Plant operators and maintainers
- Maintenance planners/schedulers
- Asset managers
Testimonials
“Genuine expertise in the area, tremendous depth”
Plant Engineer, IPM Operation & Maintenance
“An insight into metallurgical components and characteristics of gas turbine components”
Mechanical Technician, Verve Energy
“Gas turbines parts failure investigation techniques. Systematic approach to the operation and maintenance of gas turbines”
Mechanical Engineer, SKM
Terms & Conditions
To read the training course terms and conditions read more here
Agenda
INTRODUCTION TO HOT SECTION LIFE MANAGEMENT ISSUES
- Considerations and constraints
- Options
Case Study: Blade alloy development
MATERIALS AND COMPONENTS
- Hot section superalloys
- Hot section coatings
- Trends for the newer designs of machines
DESIGN FOR DURABILITY
- Basic design considerations for selected hot section parts
- Design lives for blades and discs
DEGRADATION AND LIFE LIMITATIONS: HOT SECTION
- Influencing factors
- Environmental attack
- Mechanical degradation
- Microstructural changes and their significance
- Design related ‘damage’
HOT SECTION CONDITION ASSESSMENT
- Motivation and general considerations
- Techniques for assessing component condition
- Experience and ‘simple’ inspection
- Qualitative metallographic techniques
- Quantitative metallographic techniques
- Assessment frameworks
- Case studies
REPAIR AND REFURBISHMENT: HOT SECTION
- Typical repair schemes for blades and vanes
- Inspection and stripping
- Welding and brazing
- Coatings
- Reheat treatment
- Technical quality assurance
- Alternative sourcing and re-manufacture
COMPRESSOR DURABILITY
- Materials of construction
- Coatings
- Effect of operating environment
- Filtration
- Mechanical design issues
- Damage and degradation
- Inspection
- Repairs
FAILURE ANALYSIS PROCESS
- What is a root cause analysis
- Who is to carry out the investigation
- Investigation process and framework
- Tools of the investigation
CASE STUDY: Design related failures
- Coatings life shortfall
- Disc rim cracking
- Compressor blades
CASE STUDY: Operations related
- Thermal fatigue of blades
- Blading corrosion
- Fouling from poor filtration
CASE STUDY: Manufacturing and repair related failures
- Poor coatings
- Inappropriate heat treatments
- Inadequate repair workscope Group exercises
CASE STUDY: Maintenance /inspection related
- Component overheating
- Compressor corrosion and inspection
- Compressor blade failures
APPLICATIONS AND IMPLICATIONS
- Implications for operators
- Implications for maintenance
- Implications for monitoring
On-site & in-house training
Deliver this course how you want, where you want, when you want – and save up to 40%! 8+ employees seeking training on the same topic?
Talk to us about an on-site/in-house & customised solution.