Projects NATO SPS Project 984595 Project Annex 4

 

Emerging Security Challenges Division

Science for Peace and Security Programme

Multi-Year Project Progress Report

NATO SPS Project 984595

"Protection of Underground Structures from Fuel Cloud Explosion"

fuel cloud explosion. Development stages includes: a) determination of internal and external design parameters; b) elaboration of design and technological regalement for production; c) Production of prototype of working device; d) testing of device in underground tunnels (real-time conditions). The minimization of the blast effect can be achieved by ensuring the operation of the protective facility before the penetration of the fuel cloud in the tunnel. After activation, the protective system will create a liquid barrier (from dispersed water or mixture with other liquid and/or ultra disperse solid particles), which will exclude the possibility of extension of the aerosol (fuel cloud) in tunnel and simultaneously decrease up to minimum the detonation capability of the fuel could (due to the mixing with barrier liquid the fuel cloud composition will be changed).

The proposed Explosion Suppression System will be composed of:

i) Wireless device for the detection of explosions and activation of a protective system simultaneously with the explosion of the first charge;

ii) Absorber ensuring the discharge of dispersed water before the second detonator/charge explodes the fuel cloud.

Current status:

  1. The new design of test bench was fabricated and experimental investigations of fuel cloud explosion were conducted;
  2. The blast wireless detectorand wireless activation block of explosion suppression system were developed;
  3. Two types of water mist generator/absorberwas designed: a)mist generator with  aautonomouswater container  b) a mist generator with high pressure pump for vessel security,

Results of preliminary research were presented at 5 international conferences and full papers published in International Journals.