Brilliant video , great technique !

Great video of gas cooling techniques, and I love your trigger action branches, wish we had them in the UK

Dan the Akron 753 is probably the ultimate 3D Gas Cooling Nozzle. Fitted to 25 mm internal diameter High Pressure hose it can deliver 230 LPM. We carry two hose reels each having 90 metres of hose. 230 LPM is NOT a high flow rate. However it can be rapidly deployed and in the hands of a well trained firefighters it can often go a long way to "holding a fire" until a second HP reel of larger diameter hose can be deployed by the second arriving appliance.

Its great that CFBT....things sure have changed from the good old surround and drown days!! I did a course and it opened my eyes right up to what can be achieved with very little agent!

@dylanzrim1011

7 жыл бұрын

well surround and drown is a better option than the others of the time... roof breach anyone? lol these days youd get a talking to for leaving a door part open

Smallest attack line is a 90 m (125') High Pressure Hose (25 - 40 Bars or 300 - 550 PSI). 2 on each pumper with flow rate around 225 LPM (60 GPM). They are lightweight, maneuverable and allow for rapid attack and search. Used in domestic dwellings up to 50% involved. Extremely effective and a 2nd and 3rd line is rapidly deployed. May be used for slightly larger buildings but will be backed up with a 50mm (2') line. Anything large than that will be 50 or 64 mm (2 3/4'). Flows rates up to 200 GPM

Smallest attack line is a 90 m (125') High Pressure Hose (25 - 40 Bars or 300 - 550 PSI). 2 on each pumper with flow rate around 225 LPM (60 GPM). They are lightweight, manoeuvrable and allow for rapid attack and search. Used in domestic dwellings up to 50% involved. Extremely effective a 2nd and 3rd line is rapidly deployed. May be used for slightly larger buildings but will be backed up with a 50mm (2') line. Anything large than that will be 50 or 64 mm (2 3/4'). Flows rates up to 200 GPM.

@kieranjohnburke

4 жыл бұрын

Shan Raffel that’s weird lol. Here in the US we use 1 3/4” hand lines, flowing about 150-160gpm

Actually it was a training session. Objective to observe fire behaviour, interact at various stages of development, practice nozzle techniques to control the immediate environment, progressively reduce the intensity of the fire while maintaining thermal balance, extinguishing with minimal water to preserve the scene........etc. We could have put the fire out in a few seconds with a few litrre of water, but that would have spoiled the training exercise and the fun:)

Hi Shan, this is a great training video! Thanks for it! I'm a belgian firefighter and I'm looking for such training videos (fire behaviour, nozzle techniques,...) so that I can show the firefighters what I really want. Thank you so much!

@dylanzrim1011

7 жыл бұрын

so, its been three years.. any luck?

Looks a lot easier using the deadman handle than what I use.

Hi, this is ROK fire candidate now and thanks for this great video. and can i find other video? i see in this vid 3d gas cooling(we call it short pulsing) but i wanna see more like long pulsing, penciling, and painting esp. the difference of long pulsing and penciling cuz' even I've learned that skills 2months ago, still I've got some confusion. if u have other videos, let me see plz. or u if u know some more info about these techniques, give me some thanks. welcome any report too.

What's the goal here? The short bursts were extinguishing flames in the smoke ball at exterior. Fire was growing the whole time. Was entry the goal?

@ShanRaffel

8 жыл бұрын

+David Fernandez Hi David, It was a training session, that allowed the observation of fire behaviour, the opportunity to interact at various stages of development, practice nozzle techniques to control the immediate environment, progressively reduce the intensity of the fire while maintaining thermal balance, extinguishing with minimal water to preserve the scene........etc. You raised a good point when you said that the fire was growing the whole time. The gas cooling techniques are best for preventing the ignition of the smoke layer. They can be used to hold the fire in some cases, BUT it is critical to realise that their effect is localised and limited. They can help with entry when combined with painting of the linings. Ultimately control of the fire growth cannot occur until water is being placed on the burning surfaces. If they are visible when you enter the compartment you can start to reduce the intensity with direct application. If you have to travel through a smoke layer to get to the point where you can apply water directly. Cooling the gases and painting the linings will help to make the journey through the "kill zone" safer (to some extent), However If the travel distance is too great or the fire is too large, there is a possibility of being over-run. So it is important to see the limitations as well as the benefits.

@dylanzrim1011

7 жыл бұрын

you say this, but its a military derived technique, designed to be in and out with perfect technique, cant get close to perfection without training and practice. ive seen "old fashioned" firefighting.. roof breach, entering with inadequate ppe... almost every time someone falls in, or end up with cancer.. and denying a method that allows old style speed with actually saving lives and property? what if its electrical? do you also wish to blast any remaining evidence away????? no didnt think so

What do you guys use for actual fire attack? In my area we use those small lines for mop up and grass fires only. Our attack lines are about twice the diameter and 3-4 times the water volume.

@CDB8939

7 жыл бұрын

High pressure hose reels (19mm internal diameter) at 20 to 30 Bars pressure are the most used hose when it come to fire fighting in the UK. I have seen them described as garden hoses from over the pond, which they are certainly not. They are our primary attack hose used for making an entry, gas cooling etc. very good for a quick knockdown and can be deployed in seconds. Also can be used from the tank supply for around 15 to 20 minutes without having to set into a hydrant. We always deploy a 45mm (1.3/4") jet to back up but the less water we use the less damage caused elsewhere.

QFES?

Really curious about this nozzle, what is the hammer effect like on the truck? From an Aussie fire fighter.

@ShanRaffel

8 жыл бұрын

+Josh Connor The Akron 753 incorporates a water hammer retarder. It is a spring loaded piston. Very effective.

@dylanzrim1011

7 жыл бұрын

i would also suspect the pressure would burst a hose before it damages a pump, to do that the pump would need to be well worn. not uncommon, but id like to think the relevant fluids at least would be checked regularly.

@altheawilliamson6978

6 жыл бұрын

Josh Connor 5r

@altheawilliamson6978

6 жыл бұрын

I66gy

@altheawilliamson6978

6 жыл бұрын

J

turkiyede olsa müdahale etmedin diye tefe koyarlar

Americans or Aussies?

@ShanRaffel

6 жыл бұрын

Oz

Fire attack? After 3 minutes and 41 seconds the fire was still burning when the video ended (thank God); must have missed the "fire attack"...

@andyoxleyonhistravels

2 жыл бұрын

Robert, if you read the comment from the guy making the video he tells you what they are show in the video. If they wanted to attack it and put it out completely they could do it very quickly. They are just showing how easy it is to control the fire fire and hold it in place.

Flood the place. 3d fog does not cool the room. It only extinguishes fire. thats why firefighters sustain burs from the hot material such as tile floors, molten nylon carpeting, hot glass, hot steel. use water to cool the room. Flood the place. Who cares that the floor is wet when the room is destroyed by fire?

@ShanRaffel

9 жыл бұрын

Hi Daryl, I think you are mistaking 3D techniques with indirect extinguishing techniques that use the superheated surfaces to saturate the environment with wet steam. The pulsed 3D techniques do not really extinguish the fire. They are most effective when crews need to move through smoke laded (fuel laden) rooms to get to a point where they can put wet stuff on the red stuff. NRC did great research and their report is a recommended read. see pyrolance.com/wp-content/uploads/2013/08/3D-fire-fighting-report-NRC.pdf Certainly there is a time and place for blitz attack as there is for 3D techniques. Both are safe and effective when used in the correct context.

@dylanzrim1011

9 жыл бұрын

You wouldn't happen to be a NYC firey would you? You sound like the "enter the fully involved structure then place a fan at the front door" kind of firefighter. :p Do the CFB training like that and see how effective it is.

@solidstream13

9 жыл бұрын

No I am not a NYC firefighter however I do work in a large poor urban city and see my fair share of building fires. I also teach at the FDIC for fire engineering magazine. I did not say anything to indicate I do or do not enter "fully involved" structures or use fans at building fires. Since you bring it up in my area I fight fires predominantly in type 5 (wood frame) with ballon framing. Fans will spread fires try these buildings like wildfire. so no we do not use them here except specific high rise applications (stairwell control) or to clear smoke after fire extenguishment. We also do not "enter" full involved structures. When we arrive at a fully involved structure we first contain the fire to the building of origin so we do not burn down the neighbors place. we generally do this by using the reach and penetration of a smooth bore nozzle stream. once we gain the uped hand and start seeing knockdown and the building is no longer fully involved we can enter (if the stability of the building is fine) and finish final extinguishment from the interior. after the fire is out and ceiling and walls are pulled we can set up a fan and blow the smoke out. So do I enter fully involved buildings and use a fan? I guess I do. any more comments about what you think I do? So I would like to add that 3d gas cooling may be able to control the fire and even complete extinguishment however most of our burn injuries are the result of the firefighter coming in contact with hot and smoldering objects such as gra it countertops, tile floors molten carpeting ect. Gas cooling is not the same as cooling the room so that's why I said flood the place. we are trying to cool the whole room and prevent burn injuries not just cool the gasses. just because the oven is turned off does not mean I want to step into an oven.

@ShanRaffel

9 жыл бұрын

Daryl Liggins I like your following comments " just because the oven is turned off does not mean I want to step into an oven". You are quite right with that statement. What is sometimes over looked when teaching these techniques is the fact that it is only a control technique applicable in some situations. Along with the 3D gas cooling we also teach "painting" which is a deliberate and gradual application of water onto the linings to cool them down to stop pyrolysation and reduce radiative feedback. Critically important is "pencilling" which is a gradual application (usually in the form of a jet) of water onto the burning surfaces. So it is a well thought out and these techniques compliment many existing approaches. We integrated it in 1997 and now I think it is fair to say that these techniques are standard in Europe, UK, Oceania and even being used in parts of the USA and Canada. Primarily it is about safety and efficiency, but it also maximises our chances of saving victims and also preserves the scene. When used in the right context, these techniques can be extremely effective and beneficial to firefighters and the people we serve. It does not get any better than that.

@CDB8939

7 жыл бұрын

This technique is used specifically for compartment fires and when carrying out search & rescue, if you just "flood the place" water expands ≈1,700 times its volume when it converts to steam, what effect would that have on a casualty ? and the BA Crew ? The short pulses are to cool the fire gases (fuel) to the overhead and the long pulses to push the fire back to allow the crew to advance. What you see here is just practising hose techniques and not advancing as you would at an incident. If this type of fire was in a apartment or high rise then minimum water application will mitigate water damage to apartments below, why would you flood it and wreck every property below as well. CFBT attack with a fan could also be used to make a clear air path to the compartment but again only in the right circumstances and certainly not in a fully involved building.