axs presentration number 2
TRANSCRIPT
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Results of a gas ExplosionSimulations In a 1.2 m3 Vessel using
AXS Aluminum Network Mesh
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COMPANY INTRODUCTION
AXS Group is the only American research & development manufacturing company specializing in the production and marketing of the Aluminum Network Mesh (AXS). AXS products have many sophisticated universal applications that are proven to protect humans, assets and the environment from explosions, fires and the Green House Effect. AXS Group’s corporate office is located in the City of Dearborn, Michigan USA.
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Contents
EXPLOSION SIMULATION
• Introduction• Fill Ratio 0%• Fill Ratio 50%• Fill Ratio 100%• Comparison with Experimental
Data• Summary
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PARAMETERS Explosion simulations in a 1.2 m3-vessel using the CFD-software
FLUENT 6.1 have been performed Initially vessel is filled with propane (4.2% vol) in a quiescent
environment Ignition source is located on the vessel center line in a height of
0.74m (below vessel half-height) Vessel is filled with 0%, 50% & 100% AXS
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1.2 m3 ClosedExplosion Test Vessel
Axisymmetric Computational Model of Vessel Half
Ignition source
AXS
Propane / Air
P2
P1
P3
P4
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Fill Ratio 0%
1.0000e-03 5.0000e-03 1.0000e-02 1.5000e-02
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2.0000e-02 2.5000e-02 3.0000e-02 3.5000e-02
Fill Ratio 0%
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4.0000e-02 4.5000e-02 5.0000e-02 5.5000e-02
Fill Ratio 0%
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6.5000e-02 7.5000e-02 8.5000e-02 1.0000e-01
Fill Ratio 0%
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Fill Ratio 0%
Computed Pressure Traces At Transducer Positions P1 to P4
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Fill Ratio 0%
Comparison of Simulation & ExperimentalResults of Propane/Air Explosion In A Closed Vessel
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1.0000e-03 3.0000e-03 5.0000e-03 1.0000e-02
Fill Ratio 50%
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2.0000e-02 3.0000e-02 3.2000e-02 3.4000e-02
Fill Ratio 50%
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4.3000e-02 4.5000e-02 5.0000e-02 5.5000e-02
Fill Ratio 50%
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Computed Pressure Traces At Transducer Positions P1 to P4
Fill Ratio 50%
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Fill Ratio 50%
Computed Temperature Distribution Inside The Vessel
AXSNo AXS
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1.000e-03 5.0000e-03 1.0000e-02 1.5000e-02
Fill Ratio 100%
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2.0000e-02 2.5000e-02 3.0000e-02 3.5000e-02
Fill Ratio 100%
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Fill Ratio 100%
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Effect of AXS On Progress Variable Inside Vessel
Fill Ratio 0% 50% 100%
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AXS Explosion Simulations
0 % AXS 50 % AXS 100 % AXS
dimensionless temperature: T*=(Ttot - Tinit)/(Tmax – Tinit)
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Comparison of computed pressure traces at transducer position P2
Fill Ratio 0%, 50% and 100%
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Comparison Between Measurement Data & Simulation Results
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Agreement between simulation results and experimental data concerning explosion pressure seems to be excellent Simulation serves as good indication for the behaviour of the gas mixture under different circumstances and allows
reasonable prediction of pressure, pressure rise and temperature
AXS Has Been Extensively Tested, Validated & Is Ready For ImplementationAXS Can Eliminate Any Tank Explosion Associated With:
The Use of Domestic & Commercial LPG Bottles
SUMMARY