This Simulation was done by GexCon to show the effectiveness of AXS products inside propane bottles.

1. Results of GexCON AXS Explosion
Simulations In a 1.2 m3 Vessel

2. AXS International, Inc, is the only American research & development
manufacturing company specializing in the production and marketing of the
Aluminum Network Mesh (AXS). AXS products have many universal
applications that are proven to protect humans, assets and the environment
from explosions, fires, oil spills and the Green House Effect. AXS
International’s corporate office is located in the City of Dearborn, Michigan
USA.

3. Contents
• Introduction
• Fill Ratio 0%
• Fill Ratio 50%
• Fill Ratio 100%
• Comparison with Experimental Data
• Summary

4.  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

5. 1.2 m3 Closed
Explosion Test Vessel
Axisymmetric Computational
Model of Vessel Half
Ignition source
AXS
Propane / Air
P2
P1
P3
P4

6. Fill Ratio 0%
1.0000e-03 5.0000e-03 1.0000e-02 1.5000e-02

7. 2.0000e-02 2.5000e-02 3.0000e-02 3.5000e-02
Fill Ratio 0%

8. 4.0000e-02 4.5000e-02 5.0000e-02 5.5000e-02
Fill Ratio 0%

9. 6.5000e-02 7.5000e-02 8.5000e-02 1.0000e-01
Fill Ratio 0%

10. Fill Ratio 0%
Computed Pressure Traces At Transducer Positions P1 to P4

11. Fill Ratio 0%
Comparison of Simulation & Experimental
Results of Propane/Air Explosion In A Closed Vessel

12. 1.0000e-03 3.0000e-03 5.0000e-03 1.0000e-02
Fill Ratio 50%

13. 2.0000e-02 3.0000e-02 3.2000e-02 3.4000e-02
Fill Ratio 50%

14. 4.3000e-02 4.5000e-02 5.0000e-02 5.5000e-02
Fill Ratio 50%

15. Computed Pressure Traces At Transducer Positions P1 to P4
Fill Ratio 50%

16. Fill Ratio 50%
Computed Temperature Distribution Inside The Vessel
AXS
No AXS

17. 1.000e-03 5.0000e-03 1.0000e-02 1.5000e-02
Fill Ratio 100%

18. 2.0000e-02 2.5000e-02 3.0000e-02 3.5000e-02
Fill Ratio 100%

19. Fill Ratio 100%

20. Effect of AXS On Progress Variable Inside Vessel
Fill Ratio 0% 50% 100%

21. 0 % AXS 50 % AXS 100 % AXS
dimensionless temperature: T*=(Ttot - Tinit)/(Tmax – Tinit)

22. Comparison of computed pressure traces at transducer position P2
Fill Ratio 0%, 50% and 100%

23. Comparison Between Measurement Data & Simulation Results

25.  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 Implementation
AXS Can Eliminate Any Tank Explosion Associated With:
The Use of Domestic & Commercial LPG Bottles