HSE OIS 1/2009
Explosion hazards due to spray releases
This information sheet brings attention to the explosion hazard of spray releases caused by:• Atomisation on release of fluids under pressure: • Impingement of released fluids on nearby equipment: • Recondensation after the release of flashing liquids. Incidents at Flixborough (see ref 1) and, in particular, Buncefield (see ref 2) have been linked to such releases. Detailed guidance from explosion mechanisms at Buncefield will take time to emerge and this note therefore advocates that safety cases address risk reduction measures to minimise this hazard.
This report and the work it describes were funded by the Health and Safety Executive (HSE). Its contents, including any opinions and/or conclusions expressed, are those of the author(s) alone and do not necessarily reflect HSE policy