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Thermal balance: The degree of thermal balance existing in a closed room during a fire's development is dependent upon fuel supply and air availability as well as other factors. The hot area over the fire (often termed the fire plume or thermal column) causes the circulation that feeds air to the fire.
In another, Tennessee firefighters used a thermal imaging camera to detect a hidden fire inside a cinder railroad bed, resulting in an estimated $500,000 cost avoidance. [13] Thermal imaging cameras have also been reported to be particularly useful for fighting fires in cellulose insulation, [ 14 ] and for ascertaining that a structure is safe ...
A short piece of fire hose, usually 10 to 20 feet (6.1 m) long, of large diameter, greater than 2.5 inches (64 mm) and as large as 6 inches (150 mm), used to move water from a fire hydrant to the fire engine, when the fire apparatus is parked close to the hydrant. Solid stream A fire-fighting water stream emitted from a smooth-bore nozzle.
Ventilation is a part of structural firefighting tactics, and involves the expulsion of heat and smoke from a burning building, permitting the firefighters to more easily and safely find trapped individuals and attack the fire. It is frequently performed from the outside of a burning building while the fire is being extinguished on the inside.
Personal insulation for the diver, in the form of an insulated bag, combined with a breathing gas heat exchanger to conserve the heat of exhaled gas, and heat liberated by a personal carbon dioxide scrubber kept within the insulation layer round the diver is usually sufficient to keep the divers in thermal balance while waiting for rescue. The ...
A fog nozzle. A fog nozzle is a firefighting hose spray nozzle that breaks its stream into small droplets.By doing so, its stream achieves a greater surface area, and thus a greater rate of heat absorption, which, when compared to that of a smoothbore nozzle, speeds its transformation into the steam that smothers the fire by displacing its oxygen.
Firefighting – act of extinguishing fires. A firefighter fights these fires to prevent destruction of life, property and the environment. Firefighting is a highly technical skill that requires professionals who have spent years training in both general firefighting techniques and specialized areas of expertise.
Firefighters douse a burning building in Massueville, Canada. Firefighting is a profession aimed at controlling and extinguishing fire. [1] A person who engages in firefighting is known as a firefighter or fireman. [2] Firefighters typically undergo a high degree of technical training. [2] [3] This involves structural firefighting and wildland ...
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