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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 Presentation
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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
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
Arabdrill 19
Piper Alpha; “the day after”
“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
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
ICHS, Pisa 8-10. September 2005
Managing RISK
• Controlling risk• Being wise BEFORE
the unwanted event• Corporate learning• Cross Sectorial
learning
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
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
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
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)
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
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
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
HIAD Hydrogen Incident & Accident Database
HIAD Administration
Pre-event conditions
Nature of event
Post-event actions
Conse-quences of event
References
HIAD Administration
• Index
• Information sources
• Dates of entry and last revision
• HIAD operator and data providerdetails
Pre-event conditions
• Date and time of event
• Weather conditions
• Geographical location
• Type of H2 application
• Operation phase or mode
Nature of event
• Systems and componentsaffected or involved
• Chain of events
• Causal relations
• Relevant safety systems andemergency response
• Releases, fire and explosionspecifications/details
Consequences of event
• Fatalities and injuries
• Property, environment andeconomical loss and damage;description and costs involved
Post-event actions
• Clean-up and restoration
• Legal/legislation initiatives
• Lessons learned
• Investments made
HIAD References
• Hyperlinks/references to filesand documents, web-sites, etc.
• Specification of attachments,e.g. maps, drawings, photos, etc
ICHS, Pisa 8-10. September 2005
Hazard Identification
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
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
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
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
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
ICHS, Pisa 8-10. September 2005
Thank you for your attention