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Objectives
This course offers the state-of-the art knowledge of risk based approaches currently applied in power generation industries to the wide range of professionals involved in different activities in conventional power generation. It goes deeper in risk sources including specific damage mechanisms and elaborates methods and tools applied.
In the end of course students will know
- what levels of risk assessment are
- to model consequences on different level of risk assessment
- to assess likelihood using statistical and API approach
- most common damage mechanisms present in power plants
- to select inspection and monitoring strategy aimed to reduce risks
- to optimize inspection plan and use inspection results in the risk management process of a power plant.
Target Attendees / Participants
The course is dedicated to:
- professionals who wish to deepen their knowledge in the field of Risk Based Inspection;
- other professionals dealing with risk and safety in industry; and
- individuals with previous experience in the field of Risk Based Inspection.
Course Content by Units
Unit 1: Risk, sources of risk, risk identification, risk perception
- overall view on risks, their sources and basic principles of risk management process
- links to the applied methods, standards and codes
Unit 2: Introduction to the qualitative assessment approach
- basic principles of qualitative risk assessment techniques
- definition and agreement of common scale
- necessary expertise and background knowledge
- results evaluation and consensus building
- basics of AHP approach and its implementation to the Risk assessment
Workshop: Application of expert assessment and AHP on risk assessment of power plant components
Unit 3: Introduction to the quantitative and semi-quantitative risk assessment
- basics of semi-quantitative and quantitative approach to risk assessment
- necessary data and background knowledge
Unit 4: Modeling of consequences – qualitative and expert approach
- basics of qualitative and expert approach to risk assessment, and how this apporach can be used in semi-quantitative and quantitative analysis
- event tree and event consequence modeling
Workshop: Assessment of different scenaria for power plant components
Unit 5: Modeling of consequences – quantitative approaches
- basics of quantitative release and consequence modeling
- „Source Term“ – Identification of release cases.
- evolution of a release: accident scenarios and Event Tree analysis
- models for the assessment of fires, dispersion, explosion.
Unit 6: Likelihood assessment –statistical and API581 approach
- basics of statistical and data based approach towards likelihood assessment
- basics of API 581 approach to likelihood assessment
Unit 7: Likelihood assessment – physical modeling based on damage mechanisms
- basic description of approaches used for physical modeling for likelihood assessment
- Brief workshop: physical modeling of likelihood of failure for selected power plant components
Unit 8: Basic Damage mechanisms
- brief introduction to the most common damage mechanisms present in power plants (Creep, thermal and mechanical fatigue, corrosion, erosion, oxidation)
- effects on different power plant components
Unit 9: Inspections and inspection effectiveness
- different inspection and monitoring strategies
- effectiveness and their effects on the risk reduction shown
Unit 10: Defects and their probability of detection
- link of damage, damage manifestation and damage mechanisms to the corresponding inspection techniques
- link between likelihood of failure, inspection technique, its effectiveness and capabilities with the risk assessment process
Unit 11: Risk Based Inspection planning and inspection results evaluation
- overall picture of the risk based approach
- guidelines how to use risk assessment technique to optimize inspection planning
- guidelines how to include the inspection results in the risk management process of a power plant
Unit 12: Review of the main course issues and preparation for final exam
Unit 13: Final exam
Teaching Methods
The course includes:
- introductory note explaining aim and structure of the course, used teaching methodology as well
- ex cathedra lecturing illustrated by number of examples
- two workshops demonstrating to students how to solve selected problems using gained knowledge and specific tools
- presentation of specific software tools including interactive tools related to damage mechanisms
- individual exercises using software tools
- preparation for final exam by repetition of all course units and main issues
- final exam
Literature
- Textbook:
RBI Risk Based Inspection - Power, version 1, March 2009
- Transparencies, version 1, April 2009
Risk Based Inspection - Power
- HAZOP example, ver. 3, April 2009
- Certification material, version 1, April 2009
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