risk assessment and communication
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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… - PowerPoint PPT PresentationTRANSCRIPT
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Development of Tools for Risk Assessment and Risk Communication for Hydrogen Applications
By Angunn Engebø and Espen Funnemark, DNVICHS, Pisa 09. September 2005
Risk Assessment and Communication
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ICHS, Pisa 8-10. September 2005
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
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Arabdrill 19
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Piper Alpha; “the day after”
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“Disasters…. happen when
the decisions are made by
people who cannot
remember what
happened last time”
Daily Telegraph, 17 May 1990
“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” Trevor Kletz
KNOWLEDGE OF PAST ACCIDENTSKNOWLEDGE OF PAST ACCIDENTS
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ICHS, Pisa 8-10. September 2005
Managing RISK
• Controlling risk• Being wise BEFORE
the unwanted event• Learning by one’s
mistakes and…• Learning by OTHERS’
mistakes
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ICHS, Pisa 8-10. September 2005
Managing RISK
• Controlling risk• Being wise BEFORE
the unwanted event• Corporate learning• Cross Sectorial
learning
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ICHS, Pisa 8-10. September 2005
Disabling injury/Fatality
Less serious injuries
Material damage
1
Incident/“near-miss”accident
8
17
94
SYNERGIDatabase
Incidents AND Accidents
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ICHS, Pisa 8-10. September 2005
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
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ICHS, Pisa 8-10. September 2005
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
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ICHS, Pisa 8-10. September 2005
What is Risk ?
“the combination of the probability of occurrence of harm and the severity of that harm” (ISO/IEC Guide 51)
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ICHS, Pisa 8-10. September 2005
Risk Assessment & Management
What can go wrong?
How often? How big?
So what?
What do I do?
HAZID
FREQUENCY ASSESMENT
CONSEQUENCE ASSESMENT
RISK ASSESSMENT
RISK RISK MANAGEMENTMANAGEMENT
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ICHS, Pisa 8-10. September 2005
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
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Web-serverWeb-serverclient
client
client
client
client
client
HTML Graphical
User Interface (GUI)
Hydrogen Incident and
Accident Data
Hydrogen Incident and
Accident Data
Structured Hydrogen
Incident and Accident Data
Structured Hydrogen
Incident and Accident Data
HIADHIAD
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HIAD Hydrogen Incident & Accident Database
HIAD Administration
Pre-event conditions
Nature of event
Post-event actions
Conse-quences of event
References
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HIAD Administration
• Index
• Information sources
• Dates of entry and last revision
• HIAD operator and data providerdetails
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Pre-event conditions
• Date and time of event
• Weather conditions
• Geographical location
• Type of H2 application
• Operation phase or mode
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Nature of event
• Systems and componentsaffected or involved
• Chain of events
• Causal relations
• Relevant safety systems andemergency response
• Releases, fire and explosionspecifications/details
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Consequences of event
• Fatalities and injuries
• Property, environment andeconomical loss and damage;description and costs involved
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Post-event actions
• Clean-up and restoration
• Legal/legislation initiatives
• Lessons learned
• Investments made
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HIAD References
• Hyperlinks/references to filesand documents, web-sites, etc.
• Specification of attachments,e.g. maps, drawings, photos, etc
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ICHS, Pisa 8-10. September 2005
Hazard Identification
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ICHS, Pisa 8-10. September 2005
Frequency Assessment
• Models – probabilistic
• Tools: Fault tree assessment
• Prerequisites:– Accident data/RAM data– ”Exposure” data– Relevance/applicability– Amount of data Improve Precision
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ICHS, Pisa 8-10. September 2005
Consequence Assessment
• What are the likely consequences ?
• Are the modelled consequences comparable to a real accident ?
• Tools : – Event Tree Analysis – Consequence models
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ICHS, Pisa 8-10. September 2005
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
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ICHS, Pisa 8-10. September 2005
What to do ?
• Managing risk
• Selecting effective preventive and mitigating measures
• Demonstration of safety:
CREATE TRUST IN PUBLIC
SAFE INTRODUCTION OF H2
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ICHS, Pisa 8-10. September 2005
Thanks to our HySafe partners
WP 5 HIADDNV
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
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ICHS, Pisa 8-10. September 2005
Thank you for your attention