The CO2 gas is heavier than the oxygen in the air so it effectively pushes it out, displacing it from around the fuel which is burning to cause the fire. The fire is extinguished because the oxygen it needs to feed the flames has been replaced by the carbon dioxide gas.
CO2 fire extinguishers are created by storing a mixture of liquid and carbon dioxide under pressure. When stored like this, the mixture remains a liquid form. When discharged, the mixture expands rapidly. It is propelled at high speed as a cold white jet onto the flame. The CO2 works to smother the fire, greatly reducing the oxygen from the source.
CO2 Fire Extinguisher: How it works and limitations
Carbon Dioxide fire extinguisher works by displacing oxygen from the fire triangle. The carbon dioxide is also very cold as it comes out of the extinguisher, so it cools the fuel as well. CO2 extinguisher may be ineffective at extinguishing Class A fires because they may not be able to displace enough oxygen to successfully put the fire out. Where you should …
How does co2 Fire Extinguishers work? A co2 extinguisher work by displacing oxygen or taking away the oxygen element of the fire triangle. What kinds of fires are co2 fire extinguishers suitable for? Co2 fire extinguishers are suitable for Class B Fires, Class E Fires (Electrical Fires). How is a co2 fire extinguisher identified?
People Also Ask how does co2 work 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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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
How is CO2 used in fire extinguisher?
Dry powder (labelled blue) – For A B C D type fireFoam (labelled yellow) – For A B K type fireWater (labelled red) – For A type foreCO2 (labelled black) – For B D K type fire
How to inspect a CO2 fire extinguisher?
inside an unlocked glass cabinet or a wooden box) to prevent them from being moved.Identify if a fire extinguisher is present in the area and take note if it is easily visible.It should not be blocked by any equipment or other objects that would make it difficult to be accessed during an emergency.Portable fire extinguishers other than wheeled types must also be secured in a specific location (e.g. …
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Applications and Advantages of CO2 Fire Extinguishers Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher