For this assignment, we will examine the elements of fire and the fire triangle. The main elements of fire are heat, oxygen, and fuel. All three elements must be present for combustion to take place. Fuel contains the energy released during combustion, while heat and oxygen help to maintain combustion. These three elements make up the fire triangle. During combustion, the reactions produce heat as the fuel burns. Depending on the type of fire, various components can help to cool the temperature. There are many materials that serve as fuel, such as wood, oil, and paper. Combinations of fuels result in varying phases of combustion because different materials burn differently.
elements of fire and the fire triangle
THE FIRE TRIANGLE AND THE PHASES OF COMBUSTION
There are four phases of combustion. They include pre-ignition, flaming, smoldering, and glowing. The ability to control fires depends on experts’ understanding of the phases of combustion, their interactions, and relative importance on each fire. This includes comparing the elements of fire and fire behavior. During pre-ignition, heat on fuels causes the release of water and organic gases. This gives way to the flaming phase, where flames consume fuels. Major products during this phase are water, carbon dioxide, and visible smoke particulates. During smoldering, the fire triangle begins to break apart, with the exhaustion of fuels and the transfer of heat into the surrounding. Visible smoke is the primary product. Carbon dioxide and carbon monoxide are the primary products of the glowing phase.
fire triangle and the phases of combustion
COMBUSTION AND THE CLASSES OF FIRE
Apart from the phases of combustion, there are different classes of fire as well. The classes depend on the type of fuel (combustible or flammable). Class A fires usually involve organic solids such as paper and wood. Class B fires involve flammable liquids. Fuels are the most significant variable in the fire triangle. Some fires involve more than one type of fuel. Class C fires typically involve flammable gases, while class D fires involve metals. Cooking oils form the fuel part of class F fires. As combustion occurs, the elements of fire change in amounts, and eventually, the fire dies. This happens after consumption or removal of fuels, removal of oxygen, temperature reduction, and breaking the chain reaction.
combustion and the classes of fire
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