Transcript FCC fire collaborationx

FCC Week 2016
11 - 15 April 2016
Rome
FCC collaboration “fire safety”
S. La Mendola and M. Plagge HSE/SEE/XP
R. Trant TE/HDO
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ITSF: a time-tested forum for exchanges on safety
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Fire safety challenges shared by different physics
laboratories
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Why fire safety justifies a common effort?
Fire safety objectives for ordinary surface buildings are reached through compliance with prescriptive
compulsory rules.
Example: R. 4216-11 of French labor code prescribes that “The maximum evacuation distance to reach a stair
is never longer than 40 m”.
For unique infrastructures such as the FCC, fire safety objectives are
satisfied by performance-based design.
Smoke propagation
simulations
Fire modelling
Probabilistic assessments
Structural fire resistance
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Evacuation simulations
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Workshop in Lund, a first confirmed commitment to collaborate
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Workshop in Lund: collaboration topics
Main topic
Sub-topic
Burning behavior of commonly present items
Hazard characterization
Fire simulations
Oxygen Deficiency Hazard
Flammable gases
Passive fire protection
FCC study: a great
opportunity to cooperate!
Fire detection
Active fire protection systems
Fire extinction
Smoke extraction and ventilation
Intervention of rescue teams
Life safety in underground
facilities
Evacuation of occupants
Fire risk methodologies and
tools
Collection, analysis and use of statistics
RAMS aspects
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Current members of the FCC fire collaboration
Jülich Research Centre (DE)
joined the collaboration after the
workshop in Lund.
A CERN PhD student from the
university of Wuppertal (DE) is
also involved.
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Fire protection:
workshop at CERN
• It marked a milestone in the
collaboration road map;
• It included the following topics:
Air management (smoke extraction) in
radioactive facilities
Day 1
Intervention strategies of fire brigade teams
Fixed extinguishing systems
Burning behavior of electric cables
Computational fire simulations
Day 2
Performance-based structural fire design
Evacuation simulations
Draft standards for mine safety
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Institute Agreement
Memorandum of understanding
Status of FCC fire collaboration
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• MoUs signed by all
participants;
• Technical contents for all
Institute Agreements (IAs) are
defined;
• Two IAs (ESS and Univ. of
Lund) already registered
(Remaining IAs will soon be
finalized);
• Monthly Video conferences;
• Regular data sharing via
FermiPoint;
• Video conferences on specific
subjects.
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Structure of deliverables 1/2
OECD = Organisation for
Economic Co-operation
and Development
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Structure of deliverables 2/2
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Example WP1.4: Shared approach on data collection
and
processing
Fire Initiation
The estimated fire frequencies (per component) can be used to
calibrate the prior distribution of λ
Method of

k
 ~ Gamma  k , 
   E  =
moments
 
   k  
f     =
  k 
k  1
e
 

 2  VAR    =
k
 2
  ,  2
 , 
2

Poisson process: probability of x initiation events in a certain reference period t
p  x, t   =
k 
  
 
 t 
x!
x
e
k   k   x
      t
t
pˆ  x, t  =
 t 
x!
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x
e  t
New data from particle
physics laboratories
p  x, T  =
 k T x   k   x 
   T 
k   x
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  k   x !
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What’s next
A workshop on fire safety
will be included in ITSF
2016: opportunity to
present the advancements
to a larger audience.
Additional institutions might be interested in joining the collaboration.
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Questions?
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