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GexCon Report 08-F44110-RA-1

Experimental Investigation of the Effect of Flexible Obstructions on Flame Propagation in Vapour Cloud Explosions

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GexCon-08-F44110-RA-1 - Experimental Investigation of the Effect of Flexible Obstructions on Flame Propagation in Vapour Cloud Explosions
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SUMMARY

It has been postulated in connection with explosion accident investigations that trees located in the vicinity may contribute to the blast generated by accidental vapour explosions. An example of such an accident is the Ufa accident in Russia in 1989. Experimental evidence, however, does not exist to support this. This report describes an experimental investigation of the effect of flexible obstructions on flame propagation in vapour cloud explosions. The experimental programme presented in this report shall be considered as preliminary only and does not aim at quantifying the effects of trees and bushes on flame propagation in vapour cloud explosions, but only aims at confirming whether or not trees may contribute to explosion blast generation.

 

TABLE OF CONTENTS

  1. INTRODUCTION
  2. EXPERIMENTAL SET-UP
    1.  Test volume
    2.  IR – gas analysis
    3.  Ignition source
    4.  Explosion pressure measurement
    5.  Acquisition system
    6.  Video recordings
  3. TEST PROGRAMME
  4. RESULTS
  5. DISCUSSION
  6. CONCLUSION

APPENDIX A  HIGH-SPEED VIDEO RESULTS

Publisher: Gexcon
Published in: 2009
Keywords:
Vapour cloud explosion / Flame propagation / Flexible obstructions / Trees

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