Fire Flows from High Pressure to Low Pressure
Fire Flows from High Pressure to Low Pressure
Dec 25, 2020
firefighternation.com
Today’s #TacticalTuesday video featuring UL FSRI’s Dan Madrzykowski explains what “pushing fire” really means. It has been taught that all hose streams can push fire. That is not accurate. Pressure is needed to create the push; therefore, it is stream choice and nozzle movement that impact whether or not fire can be pushed. Additionally, there must be a flow path and oxygen available downstream of the fire in order to push fire. Effective cooling of the fire compartment always reduces the potent
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Today’s #TacticalTuesday video featuring UL FSRI’s Dan Madrzyko…
59.2K viewsJul 31, 2018
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Today’s #TacticalTuesday featuring UL FSRI Director, Steve Kerber, focuses on how fire development changes when a fire becomes ventilation limited. One of the first things every firefighter learns about fire is the fire triangle. Fire needs fuel, heat and oxygen to survive. Fire growth is definitely related to the amount of fuel and heat that is available, but it is the amount of oxygen that is making the difference in how fast the fire is allowed to release heat. Control the oxygen, and you hav
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Today’s #TacticalTuesday featuring UL FSRI Director, Steve Kerber, fo…
35K viewsJun 26, 2018
FacebookFire Safety Research Institute
UL-FRSI Tactical Consideration #6: Fire flows from high pressure to low pressure In a compartment, the fire acts like a pump. As the fire burns, hot fire gases (high pressure) collect at the ceiling and move toward low pressure, creating a flow path of heated fire gases to the outside. Outside air (carrying oxygen) is drawn into the base of the fire through openings in the building (doors, windows, roof). Video Credit- LACoFD Training Films Vimeo link- https://vimeo.com/156318853 | SBSK
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UL-FRSI Tactical Consideration #6: Fire flows from high pressure to lo…
6.5K viewsApr 15, 2018
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Significance of Tactical Ventilation in Structure Fires
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Significance of Tactical Ventilation in Structure Fires
3.6K viewsMar 11, 2025
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Basement fires can be difficult to control and extinguish once they have gotten beyond the incipient stage. Access and ventilation opportunities are usually limited, floor plans are often anything but standard, and fuel loads can be large including the structural members of a floor. Advancing down the interior stairs as a first tactic may work well during the incipient or growth stages of a fire, but when a fire has reached ventilation-limited conditions or has already flashed over, pushing down
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Basement fires can be difficult to control and extinguish once they …
20.9K viewsNov 3, 2020
FacebookFire Safety Research Institute
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