The problems that most fire fighters (and me included) have with using CAFS inside structures is the high velocity of the straight stream in close applications. No one can like opening the nozzle full open and blasting the sheetrock off the walls even if it is CAFS. I have a hard time convincing the nozzlemen to use their finger to deflect the foam stream into a fan pattern and SWEEP the heat and smoke with the high velocity fan pattern. It cools the air and it blankets everything in the 180 degree plane, then because of the very light weight of the foam in the hose they need to move it on down the hall turn and cover the other 180 area. Gas cooling or area sweeping are the things that I always show to every group I get the chance to show. When you get used to fighting the smoke as well as the fire you get better results in stopping the carcinogens that kill fire fighters and down wind citizens years after the exposure. Fire fighting is just part of a good response. Stopping the smoke is much more important to the health and safety of the community. And smoke is where the heat is. Foam does it better than water because of the larger surface area of the bubbles and the super surfactants that attach to the products of combustion.
Posted on: Fri, 19 Jul 2013 07:01:52 +0000
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