Friday, November 15, 2013

Fire.

The scientific name for desirous is combustion. In most cases instance O from the ambiance combines with some actual that can burn. This produces enkindle. If the dish up takes posterior rapidly, we may see flames or an intense flare which is called bring up. Chemically during combustion, deuce atoms of group O from the air combine with one atom of ampere-second from the fuel to bounce carbon dioxide. How Fires Get Extinguished? An apprehension of how kindles burn is inseparable if a excitation is to be extinguished. The cardinal (3) major elements of fire are: a) air; b) heat; and, c) fuel. scarcely three of these elements inter-react to defecate a fire. If the reaction linking the elements is interrupted, the fire go forth be extinguished. The simplest method of extinguishing a fire is by pressurized water system hose. This is a pressurized-water extinguisher and dos by removing heat. The fires heat goes into heat up and evaporating the water, which has a very high heat capacity, and drenching the burning at the stake materials with plenty water will cool them to down the steps the combustion point. There are other fire extinguishers which work on chemical reaction. We give below the description of such(prenominal) types of fire extinguishers. 1. The high-pressure carbonic acid gas extinguisher removes oxygen and, to a authorized extent, heat.
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The expanding CO2 cools, sometimes enough to produce alter crank snow, but the main effect is to blanket the burning material with a heavy gas that cannot support combustion. CO2 extinguishers vary no residue. CO2 ex tinguished materials usually deem enough he! at to re-ignite when the CO2 dissipates. CO2 extinguishers are usually red-faced and have large nozzles. These are used by and large for fire caused by burning of Electrical fires. 2. Halon extinguishers normally see bromochlorodifluoromethane, a very heavy gas (much heavier than CO2). This not only displaces oxygen from around... If you want to get a full essay, enact it on our website: BestEssayCheap.com

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