The Fire Triangle, has #3 Word's! #1Fuel #2Heat And #3 Oxygen, When You Subtract #1, The Fire Goes Out. True or False?

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if you subtract any one of the three the fire cannot exist

remove the oxygen and fuel cannot readily burn, 

remove the fuel and there is nothing to burn,

and removing the heat takes the enabling catalyst out of the equation.

but always remember the fuel can be anything that can burn!

if you removed the wood or paper and the paint is still on fire you haven't removed all the fuel.

consider what your extinguishing agents are and how they affect the fire.

water cools the fire! dry chemicals, co2, and foams smother or remove oxygen and clearing flammable debris removes the fuel!

removing the fuel is not an expedient way to fight an active fire as it requires a lot more manpower to deal with mass movement, therefore concentrating on knocking the fire down and smothering it gets it under control.

 Very good Ted, you know your firefighting.

ex navy , firefighter, and instructor (held weekly classes at the factory I retired from)

and was well versed in many fire fighting systems and methods.



Ted Mead said:

if you subtract any one of the three the fire cannot exist

remove the oxygen and fuel cannot readily burn, 

remove the fuel and there is nothing to burn,

and removing the heat takes the enabling catalyst out of the equation.

but always remember the fuel can be anything that can burn!

if you removed the wood or paper and the paint is still on fire you haven't removed all the fuel.

consider what your extinguishing agents are and how they affect the fire.

water cools the fire! dry chemicals, co2, and foams smother or remove oxygen and clearing flammable debris removes the fuel!

removing the fuel is not an expedient way to fight an active fire as it requires a lot more manpower to deal with mass movement, therefore concentrating on knocking the fire down and smothering it gets it under control.

But how often do we smother a fire?



captnjak said:



But how often do we smother a fire?

thats dependent on the level of firefighting you have been trained in and have exposure to.

smothering with foam and or pkp /dry chemical are methods used for flammable liquids and flammable metal fires

the best smothering agent for magnesium is a mixture of sand and plaster of paris, the plaster releases co2 and the sand melts over and smothers the fire.

and co2 can suffice for a small flammable liquid fire

water alone splatters flammable liquids and spreads the fire, and class d fires (flammable metals) such as magnesium will vaporize water and detonate the hydrogen released in the vapor.

typically most fire fighters are rarely exposed to class d fires and often not exposed too much to flammable liquids

often times most firefighters are at a high risk of electrocution until power is removed.

any navy personnel are highly trained in fighting all types of fires with a heavy training emphasis on flammable liquids.

keep in mind I am not denigrating civilian firefighters they train very hard and quite often with the types of fires they are normally exposed to.

but as a navy fire fighter you have to put the fires out or you just might have a very long swim!

but if you are using foam ,dry chemicals, or co2 you are displacing the oxygen and therefore smothering a fire.

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