ResearchTalks Vol. 1 - How to deal with nuclear safety?

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ResearchTalks Vol. 1 - How to deal with nuclear safety?

  1. 1. How to deal with nuclear safety ?  Michel GIOT  « Research Talk »  Louvain‐la‐Neuve, 14th June 2011 
  2. 2. Play on emoIons, not on truth…  
  3. 3. It works ! 
  4. 4. A scale of risks  10−9 10-8 10-7 10-6 10-5 10-4 10-3 10-2 10-1 100 = 1This explains why the zero risk  does not exist !!! 
  5. 5. Similar explosions ? 
  6. 6. Look at the clouds !  Atomic bomb tesIng  Tchernobyl 
  7. 7. MiIgate the chemical accidents:  we have the means and the know‐how ! 
  8. 8. Be serious about nuclear safety 
  9. 9. Safety Methodology  DEFENSE IN DEPTH:   5 levels (or 5 layers)   5‐ Emergency plan to limit radiological consequences outside 4‐ Resistance against “Beyond Design Basis Accident” 3‐ AddiIonal safety systems for “Design Basis Accident” 2‐ ProtecIon and safety systems to limit incidents 1‐ Design, ConstrucIon and OperaIon: Safety, Quality 
  10. 10. Level 1 1‐ Design, ConstrucIon and OperaIon: Safety, Quality 
  11. 11. Level 2 2‐ ProtecIon and safety systems to limit incidents 
  12. 12. Level 3  Double-wall containment Core melt with ventilation spreading and filtration area system Containment heat removal system Four-train redundancy Inner refueling for main storage tank safeguard systems3‐ AddiIonal safety systems for “Design Basis Accident” 
  13. 13. Level 4       iI aIng  rnal in stress Exte for “ e vents  t ests”  4‐ Resistance against “Beyond Design Basis Accident” 
  14. 14. Belgian Safety Authority:  Its Technical Support  BEL V  OrganisaIon: Some of their values: Integrity, reliability, competence, mulIdisciplinary experIse, transparency, communicaIon, … 

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