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Risk Assessment and Communication

Risk Assessment and Communication. Development of Tools for Risk Assessment and Risk Communication for Hydrogen Applications. By Angunn Engebø and Espen Funnemark, DNV ICHS, Pisa 09. September 2005. Introduction. Risk management and accidents Definitions…

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Risk Assessment and Communication

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  1. Risk Assessment and Communication Development of Tools for Risk Assessment and Risk Communication for Hydrogen Applications By Angunn Engebø and Espen Funnemark, DNV ICHS, Pisa 09. September 2005

  2. Introduction • Risk management and accidents • Definitions… • The Hydrogen Incident and Accident Database HIAD • The use of data for Risk assessment, Improvement of safety and Demonstration of safety ICHS, Pisa 8-10. September 2005

  3. Arabdrill 19

  4. Piper Alpha;“the day after”

  5. KNOWLEDGE OF PAST ACCIDENTS “Disasters…. happen when the decisions are made by people who cannot remember what happened last time” “It might seem to an outsider that industrial accidents occur because we do not know how prevent them. In fact they occur because we do not use the knowledge that is available” Daily Telegraph, 17 May 1990 Trevor Kletz

  6. Managing RISK • Controlling risk • Being wise BEFORE the unwanted event • Learning by one’s mistakes and… • Learning by OTHERS’ mistakes ICHS, Pisa 8-10. September 2005

  7. Managing RISK • Controlling risk • Being wise BEFORE the unwanted event • Corporate learning • Cross Sectorial learning ICHS, Pisa 8-10. September 2005

  8. Incidents AND Accidents SYNERGI Database 1 Disabling injury/Fatality 8 Less serious injuries 17 Material damage Incident/“near-miss”accident 94 ICHS, Pisa 8-10. September 2005

  9. How to prevent accidents • Understanding how accidents occur • Initiation (Causes) • Propagation (Consequences) • Barriers (Safety functions) • Implementing measures to prevent the initiation AND to limit the propagation ICHS, Pisa 8-10. September 2005

  10. How to demonstrate safety • Understanding how accidents occur • Implementing measures to prevent the initiation AND to limit the propagation • Demonstrating how the implemented measures will prevent recurrence of previous accidents • TOOLS: Risk Assessment and Accident Data ICHS, Pisa 8-10. September 2005

  11. What is Risk ? “the combination of the probability of occurrence of harm and the severity of that harm” (ISO/IEC Guide 51) ICHS, Pisa 8-10. September 2005

  12. Risk Assessment & Management HAZID What can go wrong? How often? FREQUENCY ASSESMENT CONSEQUENCE ASSESMENT How big? RISK ASSESSMENT So what? RISK MANAGEMENT What do I do? ICHS, Pisa 8-10. September 2005

  13. Objectives of HySafe WP5 HIAD • A common methodology and format for hydrogen accident/incident data collection and storage • A tool for providing input to risk management and assessments • A source for understanding hydrogen accident phenomena, scenarios and hazard potential • Encourage and facilitatate industry partners to share experience ICHS, Pisa 8-10. September 2005

  14. HIAD Hydrogen Incident & Accident Database HIAD Administration Pre-event conditions Nature of event Conse-quences of event Post-event actions References

  15. HIAD Administration • Index • Information sources • Dates of entry and last revision • HIAD operator and data provider details

  16. Pre-event conditions • Date and time of event • Weather conditions • Geographical location • Type of H2 application • Operation phase or mode

  17. Nature of event • Systems and components affected or involved • Chain of events • Causal relations • Relevant safety systems and emergency response • Releases, fire and explosion specifications/details

  18. Consequences of event • Fatalities and injuries • Property, environment and economical loss and damage; description and costs involved

  19. Post-event actions • Clean-up and restoration • Legal/legislation initiatives • Lessons learned • Investments made

  20. HIAD References • Hyperlinks/references to files and documents, web-sites, etc. • Specification of attachments, e.g. maps, drawings, photos, etc

  21. Hazard Identification DATA BASE Total Risk Picture ICHS, Pisa 8-10. September 2005

  22. Frequency Assessment • Models – probabilistic • Tools: Fault tree assessment • Prerequisites: • Accident data/RAM data • ”Exposure” data • Relevance/applicability • Amount of data  Improve Precision ICHS, Pisa 8-10. September 2005

  23. Consequence Assessment • What are the likely consequences ? • Are the modelled consequences comparable to a real accident ? • Tools : • Event Tree Analysis • Consequence models ICHS, Pisa 8-10. September 2005

  24. Is the risk acceptable ? • Are our employees exposed to a higher risk ? • Are the measures implemented to protect our neighbours effective ? • Do the neighbours feel safe ? • Risk acceptance criteria under development in HySafe WP12 utilizing HIAD and other available accident and reliability data ICHS, Pisa 8-10. September 2005

  25. What to do ? • Managing risk • Selecting effective preventive and mitigating measures • Demonstration of safety: CREATE TRUST IN PUBLIC SAFE INTRODUCTION OF H2 ICHS, Pisa 8-10. September 2005

  26. WP 5 HIAD DNV JRC Air Liquide HSE/HSL INERIS Norsk Hydro TNO Volvo WP 12 RA methods DNV Norsk Hydro CEA FZK HSE/HSL INASMET INERIS JRC Risø Thanks to our HySafe partners ICHS, Pisa 8-10. September 2005

  27. Thank you for your attention ICHS, Pisa 8-10. September 2005

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