Research Article
Studying Probability of Domino Effect in Chemical Storage Tanks Using Hazard Index
Table 1
Escalation vectors for categorization of different primary scenarios and intensity assessment criteria of escalation vectors
| Primary scenario | Escalation vector | Equipment category | Threshold value | Escalation vector |
| Fireball | Heat radiation | Atmospheric pressurized | 15 kW/m2 50 kW/m2 | Fireball radius |
| Jet fire | Heat radiation | Atmospheric pressurized | 15 kW/m2 50 kW/m2 | The distance at which heat radiation equals the threshold value |
| Pool fire | Heat radiation | Atmospheric pressurized | 15 kW/m2 50 kW/m2 | The distance at which heat radiation equals the threshold value |
| Vapor cloud explosion | Overpressure (F ≥ 5; Mf ≥ 0.35) | Atmospheric pressurized | 22 kPa 16 kPa | The distance at which peak pressure equals the threshold value |
| BLEVE | Overpressure fragment projection | Atmospheric pressurized any | 22 kPa 16 kPa Undefined | The distance at which peak pressure equals the threshold value Fragment projection Fragment impact Maximum projection distance |
| Mechanical explosion | Overpressure fragment projection | Atmospheric pressurized any | 22 kPa 16 kPa Undefined | The distance at which peak pressure equals threshold value Maximum projection distance |
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