User:Georges Cecyre

'Flash Fire< Jump to: navigation, search For the Marvel comics character see Flash Fire (comics); For the book by David Sherman & Dan Cragg, see Flashfire. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (July 2007) G.Cecyre. If we dont bring some new stoff are-we going forward. Or we stand there and wait for A MIRACLE. We have the prove today the Scientifics make a lot of mistake and we vegetate. What new during the last 20 years after the hose line colored, and new nozzle. Fire truck apparatus. And new good studies on fire tactics.

A flash fire is a sudden, intense fire caused by ignition of a mixture of air and a dispersed flammable substance such as a solid (including dust), flammable or combustible liquid (such as an aerosol or fine mist), or a flammable gas. It is characterized by high temperature, short duration, and a rapidly moving flame front. It’s not true for all these three combustible, it’s right for the ignitable combustible, but not for the gas and dust explosion, they are not in the same categories. Think about it ? Contents. [hide]•1 Definition •	2 Characterization •	3 Surgical flash fire •	4 See also •	5 References •	6 External links edit] Definition A flash Fire is defined by CGSB 155.20-2000 and NFPA 2113 as: “A rapidly moving flame front which can be a combustion explosion. Flash fire may occur in an environment where fuel and air become mixed in adequate concentrations to combust...flash fire has a heat flux of approximately 84 kW/m2 for relatively short periods of time, typically less than 3 seconds.” G.C. or a bit more. G.Cecyre. Take the time to read carefully and analysed these text by ourselves, and you can decided if it’s right or not. All that carries the prefixe of flash is very fast, like a Spark, signification of the NFPA 921-2001: the fire spreads rapidly through has diffuses fuel, such has dust, gas or vapours of ignitable liquid, without production of damaging.

Very fast and very short in time. It is a very fast fire which light essence vapours for example. Fire ignite instantaneously and it is spread at high speed in all the internal atmosphere or the very widespread of vapours, It’s leaves very distinctive line of the heat and line of the fire, and it's quite visible line of smoke too, on the wall and suddenly there is no more fire because of a lack of air or a lack of fuel in the internal atmosphere. To return to our sheep, dust and the mixtures with other produced like corn, grains, flour mill, cocoa, sugar, explode powerfully and are not Flash Fire. The gases and the vapours explode too. They are explosion, when it’s an explosion the people and problem to admit it. And when it’s a backdraft who is not and explosion, it’s a spontaneous combustion, they call a backdraft and explosion. One can’t consider them belonging to this phenomenon of Flash Fire. When one speaks about gas, one does not speak about combustion gas or fuel gas from the fire, one speaks about natural gas, propane or others manufactured gases. I make a point of specifying why dust are dangerous, EX: when there is a light fire say around a conveyor to corn it‘s the friction and the rubbing which lit an incandescent fire around in the dust and the corn, and the heat releases and there is an aerothermic and aerodynamic effect which raises dust and heat spreads them all over the neighbouring air and create an accumulation of electrostatic charge. (NFPA 17e.edition)quickly they will create a rising of dust and corn which will take fire instantaneously, producing an explosion because of the cloud which was create in the place and this first explosion is a subsonic explosion created shock waves which are reflected and which will cause a second explosion, this one is supersonic, much stronger, and faster that there almost undoubtedly will cause collapse.

It is always necessary to be very vigilant and attentive because that does not forgive. You have not a second chance to do better. NFPA P-1-45, P-1-63 I speak about it with full knowledge of the facts, I avoided of them one of this kind as well of 25 foot depth, one was three fire apparatus and the district chief and his driver, imagine 14 men in the small place with a steel ladder fixed on the wall and this only exit of two foot square wide hold in the concrete floor, with the grain elevators at the wearing of Montreal where they empty the corn trains. It’s the same thing with flour mill, or sugar, I also heard and considering a sugar explosion, in the St-Lawrence Sugar co. On Notre-Dame Street and Orleans, that strikes, a brick wall of 25 foot height X 45 foot length fell onto the ground. (I forget to say, it was immediately at dinner time no injured, no death) In 2008 in USA a sugar company hit more than 100 death and wounded in that explosion. Atlanta Reuthers in Georgia, at Imperial Sugar of Port Wentworth in USA. In the town of Sherbrook 2012-11-08. In a chemical plan, A very big explosion, a tank of 1600 liters of acetone exploded has make two death and 19 wounded, whose two very bad burned. After the fire the firefighters found a person alive hidden in a small piece. Acetone flash point is –17°C, ignition temperature 465°C, Flam. Limit, 2.6% to 13%. Very dangerous and extremely explosive. Too major fire 2012-11-09 and others big explosion and a large fire in that big aeria, no injured. Do you realized the difference between these three different ways of combustible and vapors of ignitable liquid. Georges Cecyre.FPT. Firefighter-Intructor. Fire-Investigator. Fire Marshal GNl, plan Algeria, Coordinator northern Quebec. Fire prevention Radio-Canada.