Tuesday 26 October 2010

Aerosol can explosions

Currently working on a court report relating to the size and duration of a fireball resulting from an exploding aerosol can. The can was in a bin in a changing room so was probably 'empty' or nearly empty. There would still have been some residual flammable product in the can. Most of the literature relates to larger LPG releases and work with full aerosols.

I'm interested in colleague's thoughts, so please get in touch

I will share what I can after the trial.

Mike

Sunday 17 October 2010

Chinese Lanterns

Dear All

I wonder if anybody has come across any fires where the supposed cause was the possibility of a Chinese lantern. This happened recently at a farm fire in my own service and was only identified as the possible cause due to an eagle-eyed witness.

More recently I was giving a Fire Safety talk to a group of farmers from the National Farmers Union and I was asked the question if the Fire Service supported calls from some insurance companies to have Chinese lanterns banned in the UK. I have to admit that I wasn't sure of the position of national bodies such as CFOA, but suggested that tighter controls and greater awareness of the risks were certainly required.

The difficulty, as I see it, for Fire Investigation Officers, is the possibility of a Chinese lantern is unlikely to feature highly on the list of possible causes and the release of such a lantern is most likely to be remote from where a fire started. I would be interested to know the likelihood of a Chinese lantern descending to the ground when it is still lit as my understanding is they would remain airborne until they have self-extinguished, however, that does not necessarily seem to be the case. Hopefully one for further discussion.

All the best

Alan