backdraft

[PUFCKG]

Flashover

[Himdarling44]

Very Good example of backdraft guys. Great work.

[Sebol811]

Smoke screen ;D

[Jonas104]

Damn fire! you scary!

[deadstarlll]

HADOKEN!!!!!



[PayneProdutions]

I love how the only thing an English person would understand is "Shit.."

[BARRON120]

in September ist aan mij! xD

[sambake87]

Backdraft for sure!

[woodlandsteve]

It's NOT a flashover, when the compartment was first lit it flashed over, then they closed the doors, then it died down, then they opened the compartment doors (this video) which induced a backdraft,,, simple

[STARCRAFT2OWNER]

CHARIZARD FIRE BLAST!!!!!!

[webfire29]

Haha at the people calling this a flashover!

[legalizejane]

for all the fuckin retards out there its a flashover because its a live fire.. backdraft happens in the decay smoldering phase of the fire

[thekiwi69]

@legalizejane I think sir...... YOU are the retard.

What Fire Brigade are you in?

[vasicour]

thats a Backdraft, plain and simple. if the whole thingwould have went up in flames then it would be a flashover, when a backdraft occurs, essenially forming a burst of fire, Much like how Sci-Fi movies depict a Dragon breathing fire.

[hanypants]

O i can relate to this. I had a PVC pipe and all it was doing was letting out black smoke untill i picked it up, allowing oxygen to come up the other end of the tube and right there it was a like a flame thrower. It was pretty cool lol

[vietanmay911]

lol that what it looks like after i smoked weed in a shipping container

[BWFDsmokEater]

flashover

[Foc4ccin4]

@BWFDsmokEater backdraft

[Yogi1070Canada]

ooohhh, aaaahhhh, sh!t....lol Just love watching smoke catch fire!

[jamesff151]

Its still amazing to watch air catch fire!

[rmjmitchell]

backdraft occurs when oxygen is suddenly introduced to oxygen deprived fire...if it were a backdraft there would hae been a reaction almost as soon as the hatch was opened......

since the hatch was open for a while before the event occured it means the fire was able to grow and flashover as a result......

[ckhughes117]

That's a flashover

[fireinsyde]

*introduced

[fireinsyde]

ahh. the age old backdraft/flashover/smoke explosion debate. my input: "smoke explosion" definition: accumulated flammable mixture of air and incomplete combustion gasses are invtoruced to a heat source. Flashover: all contents are in a flammable mixture and reach ignition point at once. Backdraft, heat and fuel are present, lacking a flammable mixture with air. This is a Backdraft. Just because it happened slowly is irrelevant.

[Firefightr1]

FLASHOVER!!!

[Andyman1130]

Its backdraft. Go to fire essentials again and pay attention this time ...

[popple29]

clintonvfd - i take it thats volunteer fire department?

As a fulltime i can tell you thats a backdraught. go back to fireschool and look at signs and symptoms of a backdraught compared to flashover. Focus particularly on the transition of a too rich mix to the ideal mix - the level of saturation of oxygen whereby the fire gasses enter their flammable range.

Retard.

[garyco99]

This is a backdraft simulation. wooster141, a backdraft does not blow right away, only when the oxygen to smoke/gases saturation is at the level for ignition to occur; which could take a few seconds...For thoe who think it is a flashover; read again.

[clintonvfd]

The box flashed.... not a backdraft I hope you retards that think this is a backdraft never come to PG county MD!!!

[sacitarius]

lol a devliface :D

[ibanez6789345]

you can tell this is a backdraft. tell tale signs are when the smoke comes out in puffs.

[vipersarmycrew]

it is a backdraft, we trained in such a container a couple a years ago. maybe some off you guys should make the experience too befor posting here....and the instructors know of what they talk most of them fought fires all over the world.

[selectamo]

ok. in my book it says the following

" it is often assumed (incorretly) that a backdraft will always occur immediately or soon after making and opening into the building or involved compartment. mixing of hot flameable products of combustion with air through the action of gravity currents ,pressure differentials, aand wind eddects sometime takes time..."

[wooster1414]

deffinetly not a backdraft,it would have blown right when the window opened

[muzanz]

it IS a backdraft, you have to have fire behaviour knowledge to understand it. Backdraft, basically happens when a fire is deprived of air, the room is full of flamable smoke and the temperature is still very high...when the air is let in again, the hot gasses(smoke) will ignite rapidly. This will occur when the air/gas mixture is correct, which will take some time...giving the firemen time for corrective action. This is what they are doing here, signs and symptoms of fire..

[floridaboy313]

yea i agree with firemonkey1097 you learn that in basic fireschool

[firemonkey1097]

definatly a flashover, if it were a backdraft, it would have blown almost as soon as that window opened

[muzanz]

definitely NOT a flashover. A flashover occurs when the heat from a fire in a room is so high that other things inside the room start to release gasses(smoke) even though they are not directly in the fire. When the smoke, air and temperature conditions are right, the whole room will set on fire (flashover) and the fire in the room becomes a room on fire!

[matthewpaintballer]

no cause it has to take just a lil bit to get the right air to gas mixture to ignite.

[kludgedup]

that's some thick smoke. it looks like water right when it comes out the opening.

[61Truck1]

nope .sorry flashover...backdraft wouldn't have that much smoke at all and would actually suck back in the container b4 ignition

[Tiburon112]

I can understand ppl arguing about wether some videos show backdrafts/flashovers, but what we see here looks like a textbook backdraft to me.

We have a confined closed space. The window is beeing opened as the vidoe starts. Then u can see how the fire breathes and sucks in fresh air through the lower part of the window, whilst smoke is coming out, making way for the air. Then once there is enough oxygen in the smoke/air mix, it ignites.

The flame burst coming out of the opening is also classic.

[DavewaFF]

Cont: On the introduction of Air(oxygen) we have all the required elements to create a backdraught. Fuel(fire gases), Heat(600c)ish & Oxgyen. Unlike the movie they rarely blow people across the street. What you see in the video is the fire gases, predominantly Carbon Monoxide taking some time to reach its UEL. For CO that means that the compartment needs to contain at least 26 percent of the containers volume in fresh air before it will ignite. Its too rich initially.

CO LEL12% - 74% UEL

[DavewaFF]

My 5 cents worth. Its a Backdraught. I will try and keep my argument simple. Backdraught once initiated creates a considerable instant pressure change as energy rich fire gas' ignite. As the fire goes through its growth phase it consumes the fuel load within the compartment and its available Oxygen. It then decays and leaves unvented fire gases above their ignition temperature but with insufficient oxygen to support flamming combustion. It decays to become a smouldering fire.

[graves420fire]

This IS a backdraft. A flashover occurs when temperatures reach approximately 900 F, then all combustibles (including the smoke) ignite. This is clearly not the case in this video, the smoke is not burning. This is a backdraft, they created an oxygen poor atmosphere and then opened the side window creating horizontal ventilation, as soon as fresh air got to the fire it flared up with explosive force as seen, also notice it nearly puts the fire out, this wont happen in a flashover.

[PearlFF2]

Then the whole room combusts at once as it has reached the heat levels required to burn everything in the room and what ever was not burning before suddenly explodes into flames which elevate the heat and flames in the room and with an opening such as this window it will push out with some force but it is still not a backdraft .

Not even close.

Part 3

[UKFireBandit]

Wrong. This is a backdraught. What we have here is a fire burning in a poorly ventilated compartment, creating an oxygen poor atmosphere and rich unburnt fire gases.

[UKFireBandit]

When the door is opened, oxygen is drawn into the compartment, diluting the fire gases down into its flammable range - this can be seen clearly at 0:16 - 0:20, look at the letterbox style area of clear oxygen being drawn in at the bottom of the door opening.

Once the gases reach their flammable range, the source of ignition causes a sudden and sustained deflagration through the compartment and out of the opening.

Backdraught, not flashover.

[UKFireBandit]

Also, your point about backdraught retaining their heat is incorrect - it is possible under rare circumstances to have a cold smoke explosion, where carbon monoxide rich fire gases escape and collect in an unaffected compartment. Given a source of ignition, if within their flammable range, they will produce a similar deflagration to a backdraught, without any heat until the moment of ignition.

[PearlFF2]

This video clearly shows lots of smoke and an open window, so it has oxygen and in the smoke you can see fingering which is where the flames start to finger in the smoke coming out the window. Part 2

[PearlFF2]

Just because you watched the movie Backdraft does not make you an expert.

This is clearly a Flash over.

Back drafts retain all of their heat and the fuel is there but they lose oxygen and can not burn so little to no smoke and what is there gets sucked back inwards to the fire source then when oxygen combines with the heat and fuel load it litterally explodes. They can shoot out as far as 60 feet.

Part 1

[anitagoughradump]

Definitely a backdraught. "can not burn so little to no smoke" - Actually just before a backdraught there is alot of greenish and cream coloured smoke, which is all the unburnt particles escaping due to the source of the heat being "extinguished" - it is those particles floating inside the room that act as the "fuel" when the oxygen and heat re-ignite...

[alexwoot5106]

i would have to say it was a backdraft 1. he opened the door and the fire got more oxygen allowing it to breath, and two...a flashover would expel alot more heat and fire than that...and wouldnt just go right back out and start smoking again...flashover combustes everything around it...thats why its so dangerous

[beachrace]

Its clearly backdraft. Look at the pressure pushing the smoke out! What about the cause? Oxygen being allowed to get in and mix.

If you think its flashover you need re-training!

[judoka5446]

Backdraft for sure

[PearlFF2]

That is not a Backdraft it is a flash over

[kornklone]

agreed. notice, if it was backdraft, it wouldve created negative pressure within the container. in other words, it wouldve sucked the smoke back in. notice how the smoke turns black and is very turbulent before the fire shoots out. most obvious sign of imminent flash. that is the carbon in the smoke that makes it black. the reason it did not ignite was because it was too rich. when they gave it air, it created the mixture it needed 4 flash. backdraft wouldve happened way quicker. pretty simple..

[HarperGT88]

Whoa... That is unreal the way that fire just pushed out of the Container!

[mbmls]

eso no es un backdraft es un flashover !!!!

[metalforbeing]

Back draft

[tpinet]

SMOKE EXPLOSION, Definatly not a backdraft!

[metalforbeing]

Definitely a backdraft. Notice that the BACKDRAFT occurs after he opens the door allowing oxygen to fill the container of which was starved of oxygen

[frosty956]

the problem is that the terms backdraft, flashover and smoke explosion are all rather poorly defined, in such a way that differentiating between them isnt always a clear cut decision

[roppeltman]

This is not a backdraft,its a flashover.Turbulent smoke, radiant heat,the box can not hold any more heat ,so the heat radiates to the floor and fills the room ,introduce oxygen,and boom a flashover....

[mikeJ334]

No, it's a backdraft. The oxygen in the box is gone but the heat is still there. When you open the hatch oxygen get sucked in.. the oxygen ignites... and boom.. a backdraft. Flashovers don't "boom".

[alter656667]

dude, learn your terms. a floashover means that any left over heat remaining in the room will RE-ignite. Oxygen is already in during a flashover. A backdraft means oxygen is disapating so the fire is in deperate need of oxygen. so when the newly arrived oxygen gets in, it ignites therefore creating a backdraft.

[kornklone]

it doesnt mean it will reignite. people are right, this is flash over. best way to differentiate, the oxygen was not sucked into the container. it was turbulent and black, carbon filled smoke comin out right before the fire came out. VERY OBVIOUS flash. look up the Art of Reading Smoke. Best way to be able to tell.

[NAGGERBALLS]

gay

[yaku666]

nice vid...you can see it clearly...

[evans91885]

Sunshine you are exactly right on your comment. Everyone that said this is a flashover is wrong. Read a little bit into fire behavior and you'll understand.

FF Evans

Search and Rescue 8

Bruin, LA

[vlaup]

isnt this a backdraft? becaue by looking at the smoke u see that the fire was oxygen deprived.... Jr Firefighter?/fire buff btfd

[bomberodocksud]

Good job!

[peterwmaw]

who was the twat that posted this vid they have prob never been in a proper fire come back in a few years when you have done a bit

[Sunshine32904]

K. Let me clear this up for both of ya's. A flashover is when all of the materials that can burn in the room that is on fire are all really close to there ignition points and all light up at the same time pretty much causeing quite the explosion. A backdraft is when oxeygen is intorduced into a room that is filled with smoke. Smoke is a form of incomplete combustion. Meaning that combustable matterial is in the smoke. When the smoke and O2 mix bang you got an explosion, a smoke explosion kinda.

[pedalinmedic]

While I like your thought process I want to correct you on the following statement. "Smoke is a form of incomplete combustion" - this is not correct. Smoke is a By-product of incomplete combustion.

[impaled9855]

I don't think there are any backdraft videos on Youtube. Just Flashovers.

Clearly, this is a flashover. Tons of smoke venting, clear explosion of flame as everything ignites simultaneously, and no smoke after the explosion for awhile. FLASHOVER.

Had it been a backdraft, the smoke would have rushed into the whole instantly upon opening and the explosion would have occured.

[Paulieboy117]

My thoughts exactly.

[firerescue3460]

this is definitely a backdraft fellas. the fire was starved of O2 then they opened the window and let it get some air. Backdrafts don't have to be instantaneous. You can see the smoke "puffing" and backdrafts are not hard to simulate.

[mxfrmbarsspbdsrtrver]

ok not trying to disrespect you in anyway but how much fire behavior classes have you had?

[heyitskole]

ITS A ROLLOVER AKA FLASHOVER. they can not simmulate a backdraft its way to dangerous...and plus in a back draft the smoke gets sucked back into the fire and it explodes.

[lordoflivernois]

Great FLASHOVER training

[donnaromero]

sorry guys, your wrong, thats called flashover

[goredsox3414]

or a backdraft

[heav0on]

Not a backdraft. It's a roll-over.

[mathuetax]

Wow, that was captured REALLY well!

[omerusi]

A good training video of what a backdraft is.