FLACS-Fire - Gexcon 2015... · FLACS-Fire has been validated, benchmarked and tested by internal...
Transcript of FLACS-Fire - Gexcon 2015... · FLACS-Fire has been validated, benchmarked and tested by internal...
FLUG 3rd - 4th November 2015, Shanghai China
FLACS-FireDjurre SiccamaGexcon R&D and Software
VP Products
FLUG 3rd - 4th November 2015, Shanghai China
Introduction to FLACS-FireGOAL:
Provide FLACS users with an efficient complete toolbox for dispersion, explosion and fire modelling.
►Calculation times in hours/days and not weeks/months
►User friendly interface and quick learning curve
►More realistic modelling vs. emperical tools
►Especially suited for industrial type fires including high momentum jet fires
FLUG 3rd - 4th November 2015, Shanghai China
FLACS-Fire Development time-line
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
FLACS-Fire development started
Official ReleaseFLACS-Fire
ExternalBeta testing
Continuous development, optimisation, validation and testing
Internal Beta testing
Today
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FLACS-Fire Capabilities
►Jet fires
►Poolfire model (fully coupled model included)
►6-Flux and DTM radiation models
►Output: Temperature, radiation, toxic concentrations, soot, visibility, etc.
►Commercial Release date: September 2014
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FLACS - FIREFire Model
Flow
Heat Transfer
Turbulence
Continuity & Momentum
Energy Equation
k-epsilon model
Combustion
Radiation
Radiativeproperties
Eddy Dissipation Concept (EDC)
Discrete Transfer Model (DTM)
Soot Formation-oxidation Model (FOX)
6-Flux Radiation Model
Compressible Solver
Incompressible Solver
Uncoupled WSGGM
Coupled WSGGM
FLACS-Fire: Program flow chart
FLACS RANS Model
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Summary validation► Sub-model validation: DTM Radiation model
2-D square cavity (2 cases) Box-shaped experimental furnace (2 cases) L-shaped geometry (3 cases) Cube (4 cases) 3-D rectangular enclosure with non-uniform mixtures of CO2 and H2O (3 cases) 3-D enclosure with non-uniform mixtures of CO2, H2O and soot (8 cases) Parameters validated: Radiative source term (input to enthalpy equation), radiative heat flux
► Jet Fire validation cases
Small scale Jet fire in cross wind (2 cases) Large-scale field experiments (1 case) SINTEF Impinging propane jet fire (9 cases) HSL Propane flash fire (2 cases) Large scale LNG Flare (7 cases) SINTEF Enclosure jet fire (2 cases) Steckler compartment fire (2 cases) Ethylene jet Fire (2 cases)
► Parameters validated: Gas temperature, mixture fraction, flame length, flame shape, velocities, radiative heat flux, total heat flux, heat dose, species concentration of H2O and CO2
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Application areas► Passive Fire Protection (PFP) optimization*
► Flare studies
► Escape route impairment (heat, smoke, toxic, visibility)
► Vessel heat up modelling*
► Risk based fire modelling*
► Fire and smoke detection*
► Accident investigation
► Visualisation, hazard awareness, training
* Requires additional post-processing
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Sensitivity to DTM ray number
69k cells; 48 RaysCPU time: 0.35 hrDTM: 25%Memory: 200MB
69k cells; 75 RaysCPU time: 0.4 hrDTM: 35%%Memory: 300MB
69k cells; 108 RaysCPU time: 0.45 hrDTM: 43%Memory: 400MB
69k cells; 192 RaysCPU time: 0.6 hrDTM: 57%Memory: 700MB
69k cells; 432 RaysCPU time: 1.0 hrDTM: 75%Memory: 1.5 GB
69k cells; 4000 RaysCPU time: 7.4 hrDTM: 97%Memory: 14.6 GB
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FLACS-Fire demo
Radiation
Combustion
Soot
Conduction
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Application areas
Scenario: Jet fireRelease: Natural GasInitial rate: 24 kg/sDuration: 60 sec
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Application areas
Scenario: Pool fireRelease: Crude oilPool size: ± 200 m2
Duration: 45 sec
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Application areas
Scenario: Pool fireRelease: NG condensatePool size: ± 725 m2
Duration: 60 sec
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Application areas
FLUG 3rd - 4th November 2015, Shanghai China
Application areas
Scenario: Jet fireRelease: Natural GasInitial rate: 47 kg/sDuration: 80 sec
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Application areasScenario: Pool fireRelease: LNG
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Application areasScenario: Pool fireRelease: LNG
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Application areasScenario: Pool fireRelease: Crude oilPool size: ± 2000 m2
Duration: 45 sec
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FLACS-Fire Structural response
►Proof of concept FLACS => Impetus FEA Note: Commercial coupling tool not yet available!
FLUG 3rd - 4th November 2015, Shanghai China
FLACS-Fire roadmap (preliminary)
Jan Feb Mar Apr May June July August Sept Oct Nov Dec
Product releases
FLACS-Fire
Product Roadmap
2015
FLACS-Fire 10.3r3
Hydrocarbon absorbtion (1 month)
Soot ModelAdditional validation
(1-3 months)
Blind validation Statoil Oil barrel experiments (2-3 months)
Conduction model (1-2 months)
FLACS 10.4
Uncoupled Pool Fire
(1 month)
Coupled Pool Fire,PM3 (1-3 months)
Validation document (Internal Version) (3 months)
Validation document
(External 1m)
Coupled Pool Fire,PM1 (1-3 months)
Modelling of lift-off, use of detailed chem mech(1-3 months)
Two stage chemistry with EDC (1-3 months)
Validation document(External 1m)
Validation document (Internal)
Blind validation
FLACS-Fire 10.4r2
Enter Statoil approval process
Update Validation documents
DTM partial porosities
Maintenance and other improvements
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Summary
► FLACS-Fire is available now
► FLACS-Fire has been validated, benchmarked and tested by internal and external consultants
► Efficient because similar workflow can be used as for other FLACS studies
► Easy and quick to extend your existing capabilities to CFD fire studies and provide additional value to clients
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Q&A and feedback
FLACS-Fire Presentation 2015
Thank you for your attention!
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Additional Slides
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25
Standards:NORSOK Z-013: Risk- and emergency preparedness analysis
►Requirements for Probabilistic Fire analysis:
25
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Fire risk assessment Procedures
►FABIG TN 11 (depricated)
►FABIG TN 13
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Flare Impact Study
►Standards
API RP 520
API RP 521
API RP 537
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Flare Impact Study