(Image Credit: Gustavb/Wkimedia Commons) Basically, … Carbon Dioxide fire extinguishers extinguish fire by taking away the oxygen element of the fire triangle and also be removing the heat with a very cold discharge. This chemical reaction produces water, carbon dioxide, other waste gases and a lot of heat.

If you can cut off oxygen to the fire, it will stop burning – that’s why covering a burning pan with a fire blanket puts out the flames.

If you have ever seen a carbon-dioxide fire extinguisher in action, you have seen this carbon-dioxide snow form in the nozzle. Carbon Dioxide Fire Extinguishers. This property can also make them dangerous in confined spaces … When you release the liquid carbon dioxide from the tank, the expansion of the liquid and the high-speed evaporation of carbon dioxide gas cools the remainder of the liquid down to the freezing point, where it turns directly into a solid. Additionally, the foam forms a skin that helps cools the fire. Dry Chemical. The CO2 Extinguisher contains carbon dioxide in a liquid form, and when the extinguisher used the liquid is released into the air, turning into a gas and offsetting the oxygen that the fire is feeding on. Carbon dioxide extinguishers work because carbon dioxide molecules are heavier than oxygen molecules. Fire triangle. In order to put fi res out, one or more of the three main components needs to be removed.

CO2 fire extinguishers hold CO2 gas under great pressure, so it is stored as a liquid.

Since their creation two centuries ago, fire extinguishers have played an integral part in saving lives being threatened by a perilous fire.

Fire extinguishers work by using carbon dioxide to extinguishing the oxygen. A fire needs oxygen to burn. Fire fighters use this science in their daily work. It also has a cooling effect, removing some of the heat. You could do the same thing with just about any non-oxidizing gas (nitrogen, for example), but carbon dioxide is inexpensive and easy to store. How does a CO2 fire extinguisher work. In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher. When the liquid carbon dioxide inside the extinguisher expands into a gas, the carbon dioxide pushes out any oxygen surrounding the fire. Read Also: Understanding Fire Extinguisher Ratings. How does a fire extinguisher work? How Does A Carbon Dioxide Fire Extinguisher Work? Another way to cut off oxygen is to throw a blanket over the fire.

Foam fire extinguishers work in the same way as powder extinguishers, by smothering the fire. Foam can also soak into absorbent fuel to prevent re-ignition. In the larger sizes, the hard horn will be located on the end of a long, flexible hose. CO2 Extinguisher Sizes They are usually ineffective on Class A fires. Carbon Dioxide. Carbon dioxide can be used on Class B & C fires. Carbon Dioxide fire extinguisher size ranges from 5 lbs to 100 lbs or larger.


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