The Buncefield explosion and fire–lessons learned

In December 2005, a succession of events triggered by the lack of redundant level control measures led to the release of large quantities of gasoline from a bulk storage facility in Buncefield near the Heathrow airport in United Kingdom. This article provides an analysis of the reasons behind the extent of the flammable vapor cloud that may have accumulated and the mechanism by which the overpressure was generated. This article also summarizes some of the past incidents involving open‐air vapor cloud explosions and the apparent similarities and parallels with the Buncefield incident.