According to How Stuff Works, fire extinguishers use carbon dioxide to displace the oxygen necessary for a fire to burn, extinguishing the blaze. Fires need oxygen, fuel, and heat to ignite, and removing any one of those three components can put out a fire. Carbon dioxide extinguishers work because carbon dioxide molecules are heavier than oxygen molecules.
Consequently, why do we use co2 in fire extinguishers? Carbon dioxide extinguishes work by displacing oxygen, or taking away the oxygen element of the fire triangle. The carbon dioxide is also very cold as it comes out of the extinguisher, so it cools the fuel as well.
Why Is Carbon Dioxide Used in Fire Extinguishers? | eHow
Among its many uses, CO2 has the ability to put out flames and is therefore used as the extinguishing agent in both portable and fixed-installation fire extinguishers. An examination of its properties and uses shows why it’s a popular choice for suppression of most, but not all, types of fire.
The lack of oxygen will stop the fire, and there is even a cooling effect from the rapidly expanding CO2. (Adiabatic cooling) But CO2 is a gas that dissipates, sometimes rapidly depending on conditions. In an enclosed space, CO2 would be effective, though it would make the space inhospitable to life.
People Also Ask why do we use carbon dioxide in fire extinguishers
What do you need to know about CO2 fire extinguishers?
There are 8 main kinds of fire extinguishers:Water and Foam fire extinguishers operate by removing the necessary heat element from the fire triangle. …CO2 fire extinguishers remove both the oxygen element and the heat element from the fire triangle. …Dry Chemical fire extinguishers are the typical ABC extinguishers that most people are familiar with. …
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What is a CO2 fire extinguisher used for?
What are the 6 types of fire extinguishers?ABC Powder Fire Extinguisher.Carbon Dioxide Fire Extinguisher.Wet Chemical Fire Extinguisher.Water Mist Fire Extinguisher.Foam Fire Extinguisher.Clean Agent Fire Extinguisher.
How much CO2 is in a fire extinguisher?
Use any type of ordinary scale. The typical weight of a CO2 fire extinguisher is 5, 10, 15 or 20 pounds, and the proper weight should be indicated on the label. Inspect the exterior of the unit for dents, cracks or other physical damage.
How do you inspect a CO2 fire extinguisher?
Visually inspecting your fire extinguishers helps ensure several important points:The extinguisher is still present in its designated locationNo damage has occurred to the equipmentNo obstructions are blocking the equipment from view or from easy accessThe extinguisher is fully charged and operational
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