Date post: | 03-Jan-2016 |
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Modeling Train Fires in Fire Dynamic Simulator
Melbourne, Australia
Tara Barden
Jason BrownTodd Hetrick
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Objectives• Develop a passenger train car model to
predict total HRR (heat release rate)
• Design a modifiable model for use in future simulations
• Gain an understanding of material properties and fire involvement
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The Approach• Obtain an understanding of FDS software• Knowledge of full scale experiment• Make the FDS model of the train compartment
–Ignition source
–Fuel properties
–Geometry
–Instruments• Run simulations to analyze model
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Model Assessment
FDS versus full scale experiment results
• Analyze temperature, heat flux, and pressure predictions
• Visually compare smoke and fire plumes
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FDS ResultsDoor 'A' - CSIRO vs. FDS(Temperature vs. Time)
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200
400
600
800
1000
1200
0 200 400 600 800 1000 1200 1400 1600
Time (s)
Tem
p(C
)
FDS (DA1)
FDS (DA5)
FDS (DA9)
FDS (DA12)
CSIRO (DA1)
CSIRO (DA5)
CSIRO (DA9)
CSIRO (DA12)
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FDS ResultsThermocouple Rake 'B' - CSIRO vs. FDS
(Temperature vs. Time)
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400
600
800
1000
1200
1400
0 200 400 600 800 1000 1200 1400 1600
Time (s)
Tem
p(C
)
FDS (B1)
FDS (B3)
FDS (B6)
FDS (B9)
CSIRO (B1)
CSIRO (B3)
CSIRO (B5)
CSIRO (B9)
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Heat Release RateHeat Loss from FDS Environment vs. Time
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9000
0 100 200 300 400 500 600 700 800 900 1000
Time (s)
Hea
t F
lux
(kW
)
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Impact on Sponsor
• Currently using this FDS model with some modifications of material properties
• Another WPI-MQP group has continued this project to make improvements with material modeling
CSIRO
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Personal & Professional Growth• Amazing opportunity to travel to Australia
• Appreciation for different cultures
• Experience working and living with students
• Great introduction to fire modeling as an undergraduate student
• advantage with graduate
level courses